id stringlengths 8 8 | question stringlengths 6 10.2k | choices listlengths 4 4 | answer stringclasses 4
values | rationale stringlengths 0 2.59k | difficulty stringclasses 1
value | source stringclasses 146
values |
|---|---|---|---|---|---|---|
246d06f2 | What is the relation between angular deflections between two legs connected by a fixed-connected joint? | [
"They are unequal",
"They are equal",
"Can’t say",
"They don’t show angular deflection"
] | B | Since it is a fixed joint, they can’t have a relative angular deflection in between them. | structural_analysis | |
b7d88866 | Which enzyme joins the Okazaki fragments into a continuous strand? | [
"gyrase",
"topoisomerase",
"ligase",
"helicase"
] | A | The two newly synthesized strands are synthesized by two different mechanisms. The leading strand is synthesized continuously in 5’ to 3’ direction while the lagging strand is synthesized discontinuously in 3’ to 5’ direction. | cell_biology | |
531f1d32 | Which tier is data lake enabled core analytics platform? | [
"4-Tier Analytics",
"2-Tier Analytics",
"1-Tier Analytics",
"3-Tier Analytics"
] | D | Tier-3 is the data lake enabled core analytics platform. The tier 3 core analytics platform includes analytics engines, data sets and data management services that enable access to the data. | iot | |
62fee6b5 | Which of the following set of points should be chosen to generate extra equations? | [
"A and B",
"B and C",
"C and D",
"D and A"
] | A | Separate out the beam AB and conserve moment about any one of the ends. | structural_analysis | |
b95d0aec | Which one of the following is a version of UDP with congestion control? | [
"datagram congestion control protocol",
"stream control transmission protocol",
"structured stream transport",
"user congestion control protocol"
] | A | The datagram congestion control is a transport layer protocol which deals with reliable connection setup, teardown, congestion control, explicit congestion notification, and feature negotiation. It is used in modern day systems where there are really high chances of congestion. The protocol was last updated in the year... | computer_network | |
4e0ae053 | An object of rest mass 6 Kg is moving with a speed of 0.8c. Its effective mass is ____________ | [
"6 Kg",
"8 Kg",
"10 Kg",
"12 Kg"
] | C | Now, as we know m = \(\frac{m_0}{\sqrt{1-\frac{v^2}{c^2}}}\)
Here, m = 61 kg and m0 = 60 kg
Therefore, 61/60 = 1/√\(\sqrt{1-\frac{v^2}{c^2}}\)
v2/c2 = 1 – (60/61)2 = 121/3600
v = 11 X c/60 = 5.5 X 107 m/s. | engineering_physics_i | |
500d80df | Specific molar volume for an ideal gas is | [
"Volume per mass",
"Volume per molecular weight",
"Volume per mole",
"None of the mentioned"
] | D | All three are correct as a & b are ideal gas law and c is in the form of density. | chemical_process_calculation | |
58c3e5c4 | Which of the following are the low power modes? | [
"LPM0",
"LPM3",
"LPM4",
"All of the mentioned"
] | D | LPM0, LPM3, LPM4 all are the low power modes that are available in the MSP430. | microcontroller | |
95d47543 | The contents of a base register are added to the contents of index register in | [
"indexed addressing mode",
"based indexed addressing mode",
"relative based indexed addressing mode",
"based indexed and relative based indexed addressing mode"
] | C | Since in intersegment direct mode, the address to which the control is to be transferred is in a different segment. | microprocessor | |
1c43adf1 | 1. The main step for solving the optimal control problem: | [
"Transfer function of system which is optimal with respect to the given performance criterion",
"Compensators for the system",
"Minimizing the quadratic function",
"All of the mentioned"
] | D | For solving the problem using optimal control problem various steps are required as first is to form the transfer function and then to compute the compensators and the major requirement is to minimize the quadratic function. | control_systems | |
eaf1a5a2 | In 4-bit up-down counter, how many flip-flops are required? | [
"2",
"3",
"4",
"5"
] | C | An n-bit bit counter requires n number of FFs. In a 4-bit up-down counter, there are 4 J-K flip-flops required. | digital_circuits | |
e36a07ff | Which of the following is a type of coarse crusher? | [
"Rod mill",
"Stamp battery",
"Jaw crusher",
"Dicer"
] | C | The jaw crusher is one of the major type of the coarse crushing equipment, while stamp and rod mill are of the fine crushers category. | mechanical_operations | |
a4b5278d | Which of the following is a low pass-to-band pass transformation? | [
"s→\\(\\frac{s^2+Ω_u Ω_l}{s(Ω_u+Ω_l)}\\)",
"s→\\(\\frac{s^2-Ω_u Ω_l}{s(Ω_u-Ω_l)}\\)",
"s→\\(\\frac{s^2+Ω_u Ω_l}{s(Ω_u-Ω_l)}\\)",
"s→\\(\\frac{s^2-Ω_u Ω_l}{s(Ω_u+Ω_l)}\\)"
] | D | If Ωu is the desired pass band edge frequency of new low pass filter, then the transfer function of this new low pass filter is obtained by using the transformation s → s / Ωu. If ΩS and Ω’S are the stop band frequencies of prototype and transformed filters respectively, then the backward design equation is given by
ΩS... | digital_signal_processing | |
62721a90 | under continuous culture which of the following condition is applicable? | [
"μmax < D",
"μmax > D",
"μmax = D",
"μmax = 0"
] | B | The flow of medium into the vessel is related to the volume of the vessel by the term dilution rate, D, defined as:
D = F/V
Where, F is the flow rate (dm3h-1)
V is the volume (dm3)
Thus, D is expressed in units h-1. | bioprocess_engineering | |
a1214853 | The Burgers vector in ionic crystal dislocations is _____ as compared to that of metallic solids. | [
"Smaller",
"Larger",
"Equal",
"Not specific"
] | D | Metals have metallic bonding. Ceramic compounds have ionic and/or covalent bonding. That’s why crystal structures of ionic ceramics are complex. | mechanical_behaviour | |
4883242f | Prefix expression can be evaluated _________ | [
"from right to left",
"from left to right",
"from the exact middle",
"from second right element"
] | B | Expressions are usually evaluated from left to right manner. Prefix expressions follow the normal rule i.e from left to right. Postfix expressions can be evaluated from right to left. | discrete_mathematics | |
ec492c7d | The parameter to “setLineWidthScaleFactor (lw) “function specifies? | [
"Standard width",
"Relative width of the line",
"Thickness of the line",
"All of the mentioned"
] | B | The positive value to lw indicates the relative width of the line.
Standard width, if Value=1
Thickness, if value>1. | computer_graphics | |
7e7817be | Printing speed of line printer will be _____________ | [
"Less than 600 lines/sec",
"Between 600-1200 lines/sec",
"Between 600-1200 lines/minute",
"Geater thean 1200 lines/minute"
] | C | Line printers have a typical printing speed of 600 to 1200 lines/minute. | instrumentation_transducers | |
6ad2a318 | Which of the following is not one of the SFR addresses of the ports of 8051? | [
"80H",
"90H",
"A0H",
"NONE"
] | D | The SFR addresses of the ports P0, P1, P2 and P3 are 80H, 90H, A0H and B0H respectively. | microprocessor | |
e12cc473 | 11. What will be the output of the following Python code?<div class="hk1_style-wrap4"><div class="hk1_style-wrap3"><div class="hk1_style-wrap2"><div class="hk1_style-wrap"><div class="hk1_style"><div class="python"><pre class="de1"><span class="st0">'%s'</span> %<span class="br0">(</span><span class="br0">(</span><span... | [
"‘(1.23,)’",
"1.23,",
"(,1.23)",
"‘1.23’"
] | B | In this code, we must notice that since multiple values haven been given, they should be enclosed in a tuple. Since the formatting format is %.2f, the value 1.2345 is reduced to two decimal places. Hence the output of the code shown above: ‘1.2399’. | python | |
3054d31f | Isentropic efficiency is defined as ________ | [
"The power output of actual turbine/ power output if the turbine were isentropic",
"The power input of actual turbine/ power output if the turbine were isentropic",
"The power output of actual turbine/ power output if the turbine were adiabatic",
"The power output of actual turbine/ power output if the turbin... | B | The performance of a flow device is expressed in terms of its isentropic efficiency. The actual performance of the device is compared with that of its isentropic device. It happens at the same inlet and exit conditions. | fluid_mechanics | |
fa6d85c0 | Which of the following is not a polymer matrix? | [
"Epoxy resin",
"Silicon resin",
"Phenolic resin",
"None of the mentioned"
] | A | Polymer thick film can act as a sensing element for different measures. | instrumentation_transducers | |
02331c4f | Electrodes used in spot welding are made up of which material? | [
"Only Copper",
"Copper and tungsten",
"Copper and chromium",
"Copper and aluminium"
] | D | The electrodes that are employed in the spot welding are required to possess a high amount of electrical and thermal conductivity. Hence, they are primarily made up of copper or copper and tungsten or copper and chromium. | casting-forming-welding_ii | |
897738db | The number of edges from the node to the deepest leaf is called _________ of the tree. | [
"Height",
"Depth",
"Length",
"Width"
] | A | The number of edges from the node to the deepest leaf is called height of the tree. | data_structures_&_algorithms_i | |
e68c2823 | Why is combustion rate faster when the usage of pulverized coal is done in pulverized fuel handling? | [
"Due to greater surface area",
"For using fuel in powdered form",
"Decrease in excess air",
"The speed at which the coal is fed"
] | A | The combustion rate is faster due to greater surface area of coal per unit mass of coal. It means more coal surface is exposed to heat and oxygen. This decreases excess air required for complete combustion and also decreases fan power. There is an increased rate of evaporation and higher boiler efficiency due to the co... | energy_engineering | |
148ac506 | A mass m is moving with a constant velocity along a line parallel to the x-axis, away from the origin. Its angular momentum with respect to the origin ___________ | [
"Is zero",
"Remains constant",
"Goes on increasing",
"Goes on decreasing"
] | A | A rolling body can be imagined to be rolling about an axis passing through the point of contact of the body and the ground. Hence the instantaneous speed of the point of contact is zero. | engineering_physics_i | |
2d6e9e1a | Which one of the following figures correctly represents counter-flow operation of a shell and tube heat exchanger with the specific heat of fluid in the shell side more than the fluid in the tube side? | [
"<img src=\"https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-shell-tube-heat-exchangers-q12a.png\" alt=\"heat-transfer-operations-questions-answers-shell-tube-heat-exchangers-q12a\" width=\"274\" height=\"292\" class=\"alignnone size-full wp-image-246586\" />",
"<im... | C | Fins are generally used to increase the Heat transfer Area when the heat transfer coefficient on that fluid side is comparatively low. Hence as gases usually have lower heat transfer coefficients, fins are kept on this side. Also baffles are provided to give support to the tubes and increase the turbulence of the fluid... | heat_transfer_operations | |
08799191 | What is parallel axis theorem and to whom it is applied so that it can give the product of inertia of an area of an area inclined about an axis? | [
"Theorem used to add the two mutually perpendicular moment of inertias for areas",
"Theorem used to add the two mutually perpendicular moment of inertias for volumes",
"Theorem used to add the two mutually perpendicular moment of inertias for linear distances",
"Theorem used to add the two mutually perpendicu... | A | The load intensity is varying linearly in the structures. Thus the intensity is not varying parabolically nor is it cubically. It cannot be a vector also. Thus the intensity is linearly varied. | engineering_mechanics | |
9af053ac | One condition to be satisfied in an oscillator circuit so that stable oscillations are produced is: | [
"positive feedback is to be achieved",
"negative feedback is to be achieved",
"1800 phase shift is required between the transistor input and output.",
"none of the mentioned"
] | C | In an oscillator a total of 3600 of phase shift is to be achieved in the entire circuit to produce oscillations. The transistor used in the oscillator circuit must produce a phase shift of 1800 to achieve stable oscillations. Hence this condition has to be satisfied by the oscillator. | microwave_engineering | |
375d3116 | What will be the value of rotation at point A? | [
"137.1/EI",
"-137.1/EI",
"0",
"100/EI"
] | C | There won’t be any rotation at point A as it is a fixed support. | structural_analysis | |
001a10f4 | In order to read multiple bytes of a row at the same time, we make use of ______ | [
"Latch",
"Shift register",
"Cache",
"Memory extension"
] | A | The latch makes it easy to ready multiple bytes of data of the same row simultaneously by just giving the consecutive column address. | computer_architecture | |
3eae02b1 | Which of the following statements is not true regarding pairs of enantiomers? | [
"They have identical boiling points",
"They rotate plane polarized light in opposite directions",
"They react at identical rates with chiral reagents",
"They have identical melting points"
] | B | This statement is true. All (+) enantiomers are levorotatory, corresponding to rotation of plane polarized light in a clockwise direction. | organic_chemistry | |
19a09f14 | To refrain from separation in subsonic nozzles, the expansion angle must not be more than _____ | [
"10 degrees",
"20 degrees",
"30 degrees",
"40 degrees"
] | A | If the angle is more than 10 degrees, there will be a drift amidst the nozzle. At any angle more than 10 degrees, this separation will occur. But the minimum value is 10 degrees. So, the answer is 10 degrees. | fluid_mechanics | |
2556412a | The magnetic field intensity is said to be | [
"Divergent",
"Curl free",
"Solenoidal",
"Rotational"
] | C | By standard proof, Div (u X v) = v . Curl(u) – u . Curl (v). | electromagnetic_theory | |
675fc502 | In a half-wave rectifier, the | [
"current & voltage both are bi-directional",
"current & voltage both are uni-directional",
"current is always uni-directional but the voltage can be bi-directional or uni-directional",
"current can be bi-directional or uni-directional but the voltage is always uni-directional"
] | C | Current is always in one direction only, but voltage can be bi-directional in case of an L load. | power_electronics | |
c6e0093c | The dimension of Kbanded is _____ (Here NBW is half bandwidth) | [
"[N X NBW ]",
"[NBW X N]",
"[N X N]",
"[NBW X NBW]"
] | A | K can be compactly represented in banded form. As Kbanded is of dimension [N X NBW] where NBW is the half band width. | finite_element_method | |
5ae0be6f | A solution to the problem of indefinite blockage of low – priority processes is ____________ | [
"Starvation",
"Wait queue",
"Ready queue",
"Aging"
] | D | None. | operating_system | |
2f7fdc9c | In a BJT, if the collector-base junction and the base-emitter junction are both reverse-biased, which region is the BJT operating in? | [
"Saturation region",
"Active region",
"Cutoff region",
"Reverse active region"
] | C | If the collector-base junction and the base-emitter junction are both reverse-biased, then the BJT functions in the cutoff region of the output characteristics. | analog_circuits | |
ae3a8ff7 | What happens when too much excess air is supplied to the furnace in the process of combustion of coal? | [
"There is a gain in heat in the furnace",
"No change occurs in the furnace",
"There is loss in heat in the furnace",
"The excess air escapes out"
] | C | In ordinary furnaces, 50 to 100 % excess air is generally supplied. If the excess air is supplied above this amount, there is a loss of heat in the furnace. In such cases, the supply of air to the hearth is cut short or the rate of fuel supply is increased. | engineering_chemistry_ii | |
0a9ca2ef | 39 grams of benzene (z = 1.4) is filled in a container of volume 10 liter at 27oC, what is the pressure of container? | [
"1.7 atm",
"1.9 atm",
"2.2 atm",
"2.5 atm"
] | A | P = 1.4*0.5*0.0821*300/10 = 1.7 atm. | basic_chemical_engineering | |
0a3fae05 | A point is in 4th quadrant which is 17 dm away from horizontal and 12 dm away from profile plane. Orthographic projections are drawn. What is the distance from the front view to xy reference line? | [
"17",
"12",
"5",
"29"
] | A | Given the point is in 4th quadrant. The distance from front view is given by distance between point and horizontal plane here it is given 17 dm. And distance from vertical reference will be 12 dm. | engineering_drawing | |
73929b55 | 10. What will be the output of the following Python code?<div class="hk1_style-wrap4"><div class="hk1_style-wrap3"><div class="hk1_style-wrap2"><div class="hk1_style-wrap"><div class="hk1_style"><div class="python"><pre class="de1"><span class="kw1">print</span><span class="br0">(</span><span class="st0">"abcdef"</span... | [
"12abcdef12",
"abcdef1212",
"1212abcdef",
"error"
] | D | The fill character must be exactly one character long. | python | |
8074ba69 | The tidal forces are ______________ in gravitational attraction exerted by celestial bodies. | [
"Aperiodic variations",
"Periodic variations",
"Continuous",
"Discrete"
] | B | The tidal forces are periodic variations in gravitational attraction exerted by celestial bodies. These forces create the corresponding motions or currents in the world oceans. | applied_chemistry | |
40b10798 | The server maintains a/an ________ that specifies local file systems that it exports for mounting, along with names of machines that are permitted to mount them. | [
"export list",
"import list",
"sending list",
"receiving list"
] | A | None. | operating_system | |
4d2e6ad6 | At what temperature does TEL (tetra ethyl lead) starts getting decomposed? | [
"500 0C",
"100 0C",
"900 0C",
"200 0C"
] | B | Some colour is added to gasoline to differ from the gasoline, which does not contain TEL, since TEL is poisonous in nature and has to be use safely. TEL should be added safely to gasoline as it can enter the body through cut or bruise. | engineering_chemistry_ii | |
0051f4d3 | In the schematic DTA sequence having reversible and irreversible changes, starting with the hydrated material, which of the following steps occurs first on heating? | [
"Esterification",
"Methylation",
"Rehydration",
"Dehydration"
] | D | During the DTA, differential thermal analysis sequence having reversible and irreversible changes when started with hydrated material, dehydration is the first step that occurs on heating and appears as an endotherm On cooling, the melt crystallizes and the polymeric change also occur, exothermically on cooling but re... | solid_state_chemistry | |
9d98a86c | The enzyme N-acetylglucosamine phosphotransferase is responsible for ____________ | [
"mannose phosphorylation",
"sucrose phosphorylation",
"tethering Golgi stack",
"modification of integral proteins"
] | B | The residual bodies formed after the digestion of organelles by lysosomes are either discharged from the cell by exocytosis or retained inside the cell, known as ‘lipofuschin granules’. These granules increase in numbers as an individual grows older. | cell_biology | |
8e76a492 | Density is best given by _______ | [
"Product of volume and density",
"Ratio of mass to Volume",
"Addition of mass and density",
"Subtraction of mass and density"
] | B | The density is the ratio of the mass to the volume of the body. Thus arranging them and the volume is said to be a the ratio of mass to density. This equation is generally used in the calculations of the centroid of the body. | engineering_mechanics | |
2965668d | CFGs can be parsed in polynomial time using__________ | [
"LR parser",
"CYK algorithm",
"SLR parser",
"None of the mentioned"
] | A | Dangling else problem
if R then (if T then P else V) and if R then (if T then P) else V are the two ways in which the given if else statement can be parsed. | automata_theory | |
c7c04e0a | Which among the following can give an extra information on layer growth mechanism and concentration limit of various phases? | [
"Edges and free surface of diffusion couple",
"Positions of dislocation",
"Composition ratio",
"Shape of the interface"
] | A | Generally, the edges and free surface of diffusion couple can give an extra information on layer growth mechanism and concentration limit of various phases. Often the surface diffusion or evaporation/condensation give rise to the formation of larger number of phases rich in substrate material compared to regular diffus... | phase_transformation | |
f017307b | Blistering is almost eliminated in the __________ | [
"Transfer moulding",
"Blowing",
"Extrusion moulding",
"Injection moulding"
] | C | The thermoforming method is a combination of the extrusion moulding and compression moulding. | applied_chemistry | |
ec42bae2 | Second phase present as a continuous network at grain boundaries, gives ___________ | [
"Ductility",
"Toughness",
"Brittleness",
"Corrosion resistance"
] | C | When the second phase forms a continuous network at grain boundaries, it makes material brittle. This microstructure reduces ductility, toughness and corrosion resistance of the alloy. This brittleness increases with amount of the second phase. | mechanical_behaviour | |
445590ce | The degree of freedom for a pin jointed space frame is given by ____ | [
"2j – r",
"3j – r",
"3j – m – r",
"6j – r"
] | B | The degree of freedom for a pin jointed plane frame is given by 2j–r, where j is the number of joint and r is the number of reactions. | structural_analysis | |
0c5c7c96 | Removal of phosphoryl groups is catalyzed by ___________ | [
"Diphteria toxin and cholera toxin",
"Dinitrogenase reductase",
"Protein phosphatases",
"Protein kinases"
] | C | The enzymes that catalyze the ADP-ribosylation and inactivation of key cellular enzymes or proteins are diphteria toxin and cholera toxin. Dinitrogenase reductase is responsible for the regulation of biological nitrogen fixation. The attachment of phosphoryl groups to specific amino acid residues is catalyzed by protei... | biochemistry | |
c5c937cf | Programming a robot by physically moving it through the trajectory you want it to follow is called _____________ | [
"contact sensing control",
"continuous-path control",
"robot vision control",
"pick-and-place control"
] | B | None. | artificial_intelligence | |
e7b5abfb | The PC gets incremented _____________ | [
"After the instruction decoding",
"After the IR instruction gets executed",
"After the fetch cycle",
"None of the mentioned"
] | A | By parallelly accessing data we can have a pipelined processor. | computer_architecture | |
2b6e5ff6 | Which of the following is the best form of energy that can be used at any time? | [
"Wind energy",
"Solar energy",
"Tidal energy",
"Heat energy"
] | C | The wind energy and solar energy are the most uncertain sources. The solar energy can not be taken when it is cloudy and the wind cannot be blown all the time. So, the tidal energy can be drawn any time. | applied_chemistry | |
fe490737 | Pick the incorrect statement among the following. | [
"Inductor is a passive element",
"Current source is an active element",
"Resistor is a passive element",
"Voltage source is a passive element"
] | B | Energy sources(voltage or current sources) are active elements, capable of delivering power to some external device. | network_theory | |
b2cc7899 | Which type of switch can be used as automatic switch to detect the level of water in a water tank and perform suitable switching action? | [
"Flow Switch",
"Float switch",
"DPDT (Double pole double throw) Switch",
"Push button Switch"
] | B | XMPA06B2131 is an example of pressure switch. It is manufactured by “SCHNEIDER ELECTRIC”. KSD9700 is an example of temperature switch. BMP180 is an example of pressure sensor. SLB700A/06VA is an example of force sensor. | mechatronics | |
20701481 | The periods of time when the unit is idle is called as _____ | [
"Stalls",
"Bubbles",
"Hazards",
"Both Stalls and Bubbles"
] | C | By using the cache we can reduce the speed of memory access by a factor of 10. | computer_architecture | |
e433690c | How the recovery time of the op-amp is reduced? | [
"Diode is connected at the output of amplifier",
"Load resistor",
"Forward biased diode resistor",
"Discharge capacitor"
] | A | For proper operation of the circuit, charging and discharging time constant must satisfy the following: CRd ≤ T/10 and CRL ≥ to 10T. | linear_integrated_circuits | |
0a4ce712 | A sample of carbon that contains 70% carbon-12 and 30% carbon-14. What do you think is the average atomic mass of this sample? | [
"14.5",
"14.14",
"14",
"12"
] | A | The formula for finding the average atomic mass of an element is given by Avg. Atomic Mass = ∑Abundance of isotope x Mass of isotope. So for nitrogen, avg atomic mass = 99.69 x 14.0031 + 0.39% x 15.0001 = 14.007. | chemistry_mcqs_-_class_11.json | |
e7261afb | Which type of precursor is used as reactant in intramolecular Claisen condensation? | [
"One molecule with an ester end",
"Two molecules of ester",
"One molecule with two ester ends",
"One molecule of ester and enolate"
] | C | In intramolecular Claisen condensations, reactions occur for 1,6 and 1,7 diesters, as these substances result in the formation of compounds containing five and six membered rings, respectively. | organic_chemistry | |
10ea7197 | The concept of a three dimension yield envelope was presented by _________ | [
"D.C. Drucker and Prager",
"Mohr",
"None of the mentioned",
"All of the mentioned"
] | A | The effect of intermediate principal was studied by D.C. Drucker and W. Prager in 1952, who proposed the concept of a three dimensional yield envelope. | foundation_engineering | |
fd877054 | Which of the following yields acetyl coA directly? | [
"Phenylalanine",
"Isoleucine",
"Lysine",
"Alanine"
] | B | Isoleucine, leucine, threonine and tryptophan yield acetyl coA directly. | biochemistry | |
1435451f | Which of the following is the most commonly used detector in ESCA and AES? | [
"Electron multiplier",
"Dynodes",
"Photovoltaic cell",
"Photomultiplier"
] | C | In spherical sector analyser, the number of electrons striking the detector is detected and plotted as a function of energy. It is detected for a constant potential. | analytical_instrumentation | |
6a8c243e | Which of the following simultaneous loading conditions are not necessary to be considered for the most severe situations:- | [
"D + F",
"D + H + F + L + T",
"D + H + F",
"0.6D + W + H"
] | C | Necessary conditions are mentioned in Section 2 of ASCE 7-02. These can be matched from there. | structural_analysis | |
905b0bd2 | ____ and ____ are the parameters that define software defined radio applications. | [
"Linearity, SNR",
"Dynamic range, SNR",
"Linearity, Dynamic range",
"Bandwidth, SNR"
] | C | Linearity and Dynamic range are the parameters that define software defined radio applications. SNR is measured to determine the dynamic range. The SNR and DNR value is computed from the antenna to end user. | cognitive_radio | |
d471c7ce | Name the repair system for UV mediated damage of DNA? | [
"Exchange of homologous segments",
"DNA glycosylase",
"Nucleotide excision repair",
"Photoreactivation"
] | B | Genome cannot maintain its essential cellular function if the DNA is damaged. So, for the accurate functioning, a set of correction processes are used known as DNA repair. | life_sciences | |
567169e8 | State the application in which summing, scaling or averaging amplifiers are used? | [
"Multiplexers",
"Counters",
"Audio mixers",
"All of the mentioned"
] | A | AC amplifier consists of external offset voltage compensating network. Therefore, the external offset voltage is connected to the non-inverting input terminal of the amplifier. | linear_integrated_circuits | |
050d696c | Which option is used with ls command for knowing the inode number of the file? | [
"-l",
"-i",
"-a",
"-o"
] | B | The ls command reads the inode to fetch a file’s attributes. One option i.e. -i tells us the inode number of a file. For example,
$ ls -il abd.txt
9059 -rw-r--r-- 1 kumar metallone 52626 Jan 21 11:54 abd.txt | unix | |
ef702123 | The solubility of second phase particles in dispersion hardened system is _____________ compared to precipitation-hardened system. | [
"higher",
"lower",
"equal to",
"no relation"
] | B | In the hardened dispersion system, the second phase particles are externally added to the system. So their solubility is much less in matrix compared to hardened precipitation system where second phase particles are part of the system only. | mechanical_metallurgy | |
fb0b173e | 0.3333… is a/an ______________ | [
"natural number",
"whole number",
"rational number",
"irrational number"
] | A | Let’s take a known rational number to understand this.
For example, 3/4
We know that 3/4 is a rational number because both 3 and 4 are natural
numbers and 3/4=0.75 which is terminating expansion.
Now, let’s take one example of non-terminating and recurring expansion.
For example 0.5787878…
Let x=0.5787878…
Then 100x=57... | mathematics_mcqs_-_class_9.json | |
b3fdfc0f | Which of the following is called a real law of motion? | [
"Second law",
"First law",
"Third law",
"Law of inertia"
] | C | The book exerts a downward force on the table equal to its own weight. According to Newton’s third law, the table also exerts an equal and upward force on the book. As the book is under the action of two equal and opposite forces, it remains in equilibrium. | engineering_physics_i | |
339adf57 | In a delta-connected system, the currents IR = IB = IY =? | [
"IPh",
"2IPh",
"3IPh",
"4IPh"
] | A | In a delta-connected system, the currents IR = IB = IY = IPh. Since the system is balanced, the sum of the three voltages round the closed mesh is zero; consequently no current can flow around the mesh when the terminals are open. | network_theory | |
bccf0a03 | The separation of the data definition from the program is known as: | [
"Data dictionary",
"Data independence",
"Data integrity",
"Referential integrity"
] | B | Data dictionary is the place where the meaning of the data are organized. | database_management | |
8cf57a9e | High boost filtered image is expressed as: fhb = A f(x, y) – flp(x, y), where f(x, y) the input image, A is a constant and flp(x, y) is the lowpass filtered version of f(x, y). Which of the following fact validates if A=1? | [
"High-boost filtering reduces to regular Highpass filtering",
"High-boost filtering reduces to regular Lowpass filtering",
"All of the mentioned",
"None of the mentioned"
] | A | High boost filtered image is modified as: fhb = (A-1) f(x, y) +f(x, y) – flp(x, y)
i.e. fhb = (A-1) f(x, y) + fhp(x, y). So, when A=1, High-boost filtering reduces to regular Highpass filtering. | digital_image_processing | |
aa85220c | In an absolute loading scheme which loader function is accomplished by assembler? | [
"Re-allocation",
"Allocation",
"Linking",
"Loading"
] | A | Large number variables onto a small number of CPU register. | compiler | |
94ec1db1 | Constructor of automatic variables is called ____________________ | [
"When execution reaches the place of declaration of automatic variables",
"When the program is compiled",
"When the execution is just started",
"Just before the execution of the program"
] | A | Only when the execution reaches the place where the automatic variable was declared, the constructor is called. This is to ensure that the memory is not allocated if not needed. The memory is allocated and then destroyed as soon as it goes out of scope. | object_oriented_programming | |
932644f3 | What is known as a DOS attack? | [
"It is attacked to block traffic of network",
"It is attacked to harm contents stored in HDD by worm spawn processes",
"It is an attempt to make a machine or network resource unavailable",
"None of the mentioned"
] | C | None. | operating_system | |
64f8e107 | What can be the maximum diameter of the pipe for the water flow of velocity 1 m/s (ν = 10-6) to be laminar in nature? Assume Lower critical Reynolds number to be 2100. | [
"2.1 mm",
"21 mm",
"21 cm",
"0.21 mm"
] | A | If the Reynolds number of the flow is below its lower critical Reynolds number, the flow is clearly laminar. The maximum diameter can be found for Re = 2100. The diameter comes out to be 2.1 mm. | fluid_mechanics | |
fc3135c3 | Which of the following is not true for autocollimator? | [
"Contact measurement",
"Use for small tilts",
"High sensitivity",
"Used to determine parallelism"
] | A | In this method, reading of tilt of the reflector is taken in seconds from the eyepiece. 1 second of arc is 0.000006 mm/mm. It also depends upon the distance between feel centres in millimeter. | engineering_metrology | |
c9d8b6bd | The voltage at which forward bias current increases rapidly is called as ___________ | [
"Breakdown Voltage",
"Forward Voltage",
"Knee Voltage",
"Voltage barrier"
] | C | Till the knee voltage, the current in a semiconductor increases slowly. After Knee voltage, the current increases rapidly for a small change in the voltage. | engineering_physics_ii | |
0db2e320 | Planning graphs consists of ____________ | [
"a sequence of levels",
"a sequence of levels which corresponds to time steps in the plan",
"a sequence of actions which corresponds to the state of the system",
"none of the mentioned"
] | B | Planning graphs is a sequence of levels, which corresponds to time steps in the plan where level 0 is the initial state at start. | artificial_intelligence | |
dca1bf76 | Which of the following does not affect lateral stability? | [
"cross sectional shape",
"support conditions",
"type of loading",
"height of building"
] | D | The factors affecting lateral stability are cross sectional shape, support conditions, effective length, level of application of transverse loads. | design_of_steel_structures | |
6e6a31ec | The signal that causes the 80286 to perform the processor extension interrupt while executing the WAIT and ESC instructions are | [
"BUSY (active low)",
"PEACK (active low)",
"PEREQ",
"ERROR (active low)"
] | D | An active ERROR (active low) signal causes the 80286 to perform the processor extension interrupt while executing the WAIT and ESC instructions. | microprocessor | |
0030d74b | What is variation in SFD, if the type of loading in the simply supported beam is U.D.L is ____ | [
"Rectangle",
"Linear",
"Trapezoidal",
"Parabolic"
] | B | The shear force is defined as the algebraic sum of all the forces taken from any one of the section. If you figure out the SFD for a simply supported beam carrying U.D.L throughout its entire length, in the SFD we can observe that shear force is same at supports. In the centre, the shear force is zero. Hence the diagra... | strength_of_materials | |
581b74cf | Which tool is used to analyse the effects of a failure of individual components on the system? | [
"FTA",
"FMEA",
"Quality circles",
"Fool proofing"
] | B | Failure mode and effect analysis (FMEA) is a statistical tool used to review the new product design with respect to the requirements of customers before it is sent to production. It is used basically to analyse the failure effect of individual components on the system as a whole. | engineering_metrology | |
291f8329 | An 8microF capacitor is connected in series with a 0.5 megaohm resistor. The DC voltage supply is 200V. Calculate the time constant. | [
"1s",
"2s",
"3s",
"4s"
] | D | The time constant is the product of the resistance and capacitance in a series RC circuit.
Therefore, time constant = 8*10-6*4*106=4s. | basic_electrical_engineering | |
fd377183 | The definition of a language L with alphabet {a} is given as following. L = { ank | k > 0, and n is a positive integer constant} What is the minimum number of states needed in a DFA to recognize L? | [
"k+1",
"n+1",
"2n+1",
"2k+1"
] | B | The given alphabet ∑ contains only one symbol {a} and the given NFA accepts all strings with any number of occurrences of ‘a’. Hence the complement is an empty string. | compiler | |
f55c1e58 | Can an encoder be a transducer? | [
"Yes",
"No",
"May or may not be",
"Both are not even related slightly"
] | A | Of course, a transducer is a device that has the capability to emit data as well as to accept. Transducer converts signal from one form of energy to another. | digital_circuits | |
2d80069f | The technique by which image is obtained from a hologram is called as ____________ | [
"Formation",
"Construction",
"Reconstruction",
"Projection"
] | C | The process of generation of an image from a hologram is called reconstruction. In the process, a wave called reconstruction wave illuminates the hologram, thus giving rise to the desired image. | engineering_physics_ii | |
2c06e414 | The 80286 executes LMSW instruction to enter into | [
"real addressing mode",
"protected mode",
"real addressing and protected modes",
"none of the mentioned"
] | B | To enter into protected mode, 80286 executes LMSW instruction, that sets PE flag. | microprocessor | |
fc4fbf92 | The strength of beams depend merely on________ | [
"Modulus section",
"Moment of inertia",
"Flexural rigidity",
"Moment of resistance"
] | B | The product of the modulus of rigidity (C) and polar moment of inertia (J) is called torsional rigidity and it produces a twist of one radian in a shaft of unit length. | strength_of_materials | |
a70b0d24 | In the DES algorithm the Round Input is 32 bits, which is expanded to 48 bits via ______________ | [
"Scaling of the existing bits",
"Duplication of the existing bits",
"Addition of zeros",
"Addition of ones"
] | B | The block size for the AES algorithm is 16 bits. | cryptograph_&_network_security | |
1738e2a1 | Which algorithm places two actions into a plan without specifying which should come first? | [
"Full-order planner",
"Total-order planner",
"Semi-order planner",
"Partial-order planner"
] | D | Any planning algorithm that can place two actions into a plan without specifying which should come first is called partial-order planner. | artificial_intelligence | |
989dead7 | In a doubly excited magnetic system with salient pole type stator and rotor, if the rotor is not allowed to move, then the equation for magnetic field stored energy in establishing the currents from zero to is and ir is __________ | [
"Wfld=1/2 is2Ls+1/2 ir2Lr",
"Wfld=1/2 is2Ls+Mrs is ir",
"Wfld=1/2 is2Ls+1/2 ir2Lr+Mrs is ir",
"Wfld=1/2 ir2Lr+Mrs is ir"
] | C | As the rotor is not allowed to move, dWmech=0, thus dWelec=0+dWfld=isdΨs+irdΨr, if in this equation, we introduce the self and mutual inductance terms, (Ψs=Lsis) and integrate the resulting equation from 0 to is, 0 to ir and 0 to iris, the respective terms, finally we get Wfld=1/2 is2Ls+1/2 ir2Lr+Mrs is ir. | electrical_machines | |
8090b434 | Two unbiased coins are tossed. What is the probability of getting at most one head? | [
"1⁄2",
"1⁄3",
"1⁄6",
"3⁄4"
] | D | Total outcomes = (HH, HT, TH, TT)
Favorable outcomes = (TT, HT, TH)
At most one head refers to maximum one head,
Therefore, probability = 3⁄4. | probability_and_statistics | |
b17d768d | In a lifting machine, the effort required to lift loads of 200N and 300N were 50N and 60N respectively. If the velocity ratio of the machine is 20 determine law of the machine. | [
"P = 1/10W +30",
"P = 1/20W +30",
"P = 1/30W +30",
"P = 1/40W +30"
] | A | Let the law of machine be P = mW + C
where P = effort applied, W = load lifted and m and C being constants.
when W = 200 N P = 50 N
when W = 300 N P = 60 N
Putting these values in the law of machine.
50 = 200m + C …………(i)
60 = 300m + C ... | machine_kinematics | |
0c091755 | Which of the following is not a type of configuration that is based on physical interconnections between the processors? | [
"star configuration",
"loop configuration",
"regular topologies",
"incomplete interconnection"
] | D | Based on the physical interconnections between the processors, the configurations are
i) star configuration
ii) loop or ring configuration
iii) complete interconnection
iv) regular topologies
v) irregular topologies. | microprocessor |
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