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 |
|---|---|---|---|---|---|---|
3526fb3f | Which Catalyst is used in Rosenmund reduction? | [
"Pd / BaSO4",
"Zn-Hg couple",
"LiAlH4",
"Ni/H2"
] | C | The catalytic hydrogenation of acid chlorides allows the formation of aldehydes, is known as Rosenmund reaction. | organic_chemistry | |
51100471 | Some of the gases have low emissive power and absorptivity. They are considered practically diathermanous. Which of the following option is true? | [
"Ammonia",
"Helium",
"Carbon-dioxide",
"Methane"
] | B | Helium is monoatomic gas and is extremely inert to thermal radiation. | heat_transfer | |
6205c557 | 2. The frequency of a continuous time signal x (t) changes on transformation from x (t) to x (α t), α > 0 by a factor | [
"α",
"1/α",
"α2",
"α"
] | A | x(t)->x(αt), α > 0
α > 1 compression in t, expansion in f by α.
α < 1 expansion in t, compression in f by α. | control_systems | |
6a5c3046 | When the electrons are aligned either parallel or antiparallel to the direction of the external magnetic field, the electrons will precess about the axis at a frequency that is proportional to which of the following? | [
"Applied magnetic field",
"Electron magnetic moment",
"Applied magnetic field and electron magnetic moment",
"Neither applied magnetic field not electron magnetic moment"
] | A | When a strong magnetic field is applied to the unpaired spins of an electron, the electrons will be split into two groups. Electron spin resonance is based on the spin associated with the electron. | analytical_instrumentation | |
6178ceaa | For the reduction pass around one percent, the radial residual stress on the surface of rod is ___________ and _________ at axis. | [
"compressive, tensile",
"tensile, compressive",
"zero, tensile",
"tensile, zero"
] | A | For a meagre reduction in the cross-sectional area of the rod, the residual stress is compressive at the surface, while tensile in the center of the rod. | mechanical_metallurgy | |
e6ea0cae | Determine the value of N in the series equalizer. | [
"1+ X12/Ro2",
"X12/Ro2",
"1+ Ro2/X12",
"Ro2/X12"
] | A | The N is defined as the ratio of input power to the output power.
N=Pi/Pl = (Vmax2/4Ro)/[Vmax2/(4(Ro2+X12))]Ro=1+X12/Ro2. | network_theory | |
a48b9d59 | Which among the following is not a type of curve? | [
"Logarithimic curve",
"Straight curve",
"Pressure vs power",
"Efficiency vs speed"
] | C | Pressure vs power is not a characteristic curve that determines the overall efficiency of the turbine. This relation does not exist. | hydraulic_machines | |
18ac1216 | Which of the following is not known as transition capacitance? | [
"Depletion region capacitance",
"Space-Charge capacitance",
"Nominal capacitance",
"Junction capacitance"
] | C | Transition capacitance is the capacitance exhibited by a diode due to the p-side and n-side of the diode is separated by a distance of depletion width same as in an electrolytic capacitor. It occurs in a reverse biased diode. The other name for this is Junction capacitance, Space-Charge capacitance, Barrier capacitance... | analog_circuits | |
78b7effa | The bits used to indicate the status of the page in the memory is called ______ | [
"Control bits",
"Status bits",
"Progress bit",
"None of the mentioned"
] | A | These bits are used to store the status information of the program. | computer_architecture | |
f050df3f | Which statement is false according to impact strength? | [
"Notch serves as a stress concentration zone",
"Lowering the temperature reduces the impact strength in BCC materials",
"Generally, strong metals have a lower impact strength",
"In polymers, impact strength keeps on the increase with temperature"
] | B | Ductile fracture needs more energy than a brittle fracture. In ductile fracture, some plastic deformation takes place before fracture. That’s why it needs more energy. | mechanical_behaviour | |
74e039bb | ____________ represents the top stream line. | [
"Phreatic line",
"Hydraulic gradient line",
"Seepage gradient",
"Hydraulic seepage line"
] | A | Phreatic line is also called a line of seepage or saturation line. The phreatic line represents the top streamline and hence helps us in drawing the flow net. | strength_of_materials | |
6dbbf0f6 | In the given tank, there are two feeds and one output. Consider a 2 hour operation; the feed rates are 4000 kg/hr and 6000 kg/hr. The accumulated material inside the tank is 2000 kg. What is the output rate kg/hr of the material? | [
"9000",
"8000",
"7000",
"6000"
] | A | Input = output, Take a basis: 2 hour. | chemical_process_calculation | |
66295990 | Controlled inverter is also known as ____________ | [
"Controlled buffer",
"NOT gate",
"Both controlled buffer and NOT gate",
"Controlled gate"
] | C | Controlled inverter is also known as controlled buffer and NOT gate as well. It is used between output and a bus so that one can control whether the output is fed to the bus or not. | digital_circuits | |
a6249343 | 9. When the rotational path of the magnetic field intensity is zero, then the current in the path will be | [
"1",
"0",
"∞",
"0.5"
] | B | By Ampere law, Curl (H) = J. The curl of H will be i(-cos x) – j(0) + k(-z sin x) = -cos x i – zsin x k. In the xy plane, z = 0. Thus Curl(H) = J = -cos x i. | electromagnetic_theory | |
5c170c00 | What is ategmic? | [
"Presence of 1 tegument",
"Presence of 3 teguments",
"Absence of integuments",
"Presence of 2 teguments"
] | A | The mass of parenchymatous cells are also known as the Nucellus. It maybe massive (crassinucellate ovule) or thin (tenuinucellate ovule). Its surrounded by one or more teguments. | biology_mcqs_-_class_12.json | |
885c3e56 | Avalanche breakdown in zener diode is ______ | [
"electric current multiplication takes place",
"phenomenon of voltage multiplication takes place",
"electrons are decelerated for a period of time",
"sudden rise in voltage takes place."
] | B | When voltage is increased, the tunnelling at reverse bias increases. The voltage rises temperature. The crystal ions with greater thermal energy tend to vibrate with larger amplitudes. | electronic_devices_&_circuits | |
966040f4 | Cache memory works on the principle of _________ | [
"Locality of data .",
"Locality of memory",
"Locality of reference",
"Locality of reference & memory"
] | C | Cache works on Locality of reference. | compiler | |
fcab3a77 | What is induced instability? | [
"Instability due to reduction in problem",
"Instability due to number of computations",
"Instability due to errors in programming",
"Instability due to incorrect choice of method for solving equations"
] | A | There are two types of instabilities which occur while solving a linear system of equations, namely, induced and inherent stability. | numerical_methods | |
d8dd0337 | What will be the molecular weight of a chemical, consisting 2 moles of H2SO4, 3 moles of SO2 and 1 mole of NaOH? | [
"128",
"228",
"328",
"428"
] | D | A mole is number of molecules. | chemical_process_calculation | |
10347977 | YouTube Mobile uses ___________ streaming to make video available on other mobile phone platforms. | [
"RTP",
"RTSP",
"RTCP",
"All of the mentioned"
] | B | YouTube has developed a simplified interface for TV display called YouTube XL. | cloud_computing | |
53992e5c | What is the advantage of using precalciner? | [
"Fine grained cement",
"Larger clinker size",
"Fuel efficiency",
"Sound cement"
] | C | The weight of one bag of cement is 50 kg everywhere. It is the standard measurement. In the manufacturing unit of cement, it is packed in bags of 50kg. | basic_civil_engineering | |
cf4a68ea | Insertion base point of a block ________ | [
"has to be at its base",
"has to be on a specific surface only",
"should be on the block only",
"can be anywhere on the block or away from the block"
] | D | Insertion point is a point where the base point of the block should appear. It can be anywhere on the block or away from the block. To specify an insertion point one has to specify his co-ordinates or to choose a point on the drawing. | machine_drawing | |
fe6bb7c0 | Which of the following RDBMS is used by LAMP? | [
"SQL Server",
"DB2",
"MySQL",
"All of the mentioned"
] | B | Either Perl or Python is often substituted for PHP as the scripting language used. | cloud_computing | |
044d3b37 | What are the requirements of labour for machining purpose in Electrochemical machining? | [
"Low",
"Medium",
"High",
"Very high"
] | A | In electrochemical machining, labour requirements are low compared to conventional or traditional machining practices. | advanced_machining | |
85d80a32 | ___________ is the application of controlled amounts of water to plants at needed intervals. | [
"Cultivation",
"Plantation",
"Watering",
"Irrigation"
] | D | Irrigation helps grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during periods of inadequate rainfall. Irrigation also has other uses in crop production, including frost protection, suppressing weed growth in grain fields and preventing soil. In contrast, agriculture that ... | civil_engineering_drawing | |
8b86db61 | Which of the following functions does not accept any argument? | [
"re.purge",
"re.compile",
"re.findall",
"re.match"
] | B | In the code shown above, none of the group names match the group numbers. In such a case, no error is thrown. The output of the code is an empty dictionary, that is, {}. | python | |
ea022fcc | Proteins can be removed via treatment by? | [
"Phenol and chloroform treatment",
"Treatment with sodium hydroxide",
"Chloroform treatment alone",
"Centrifuging"
] | A | Proteins can be removed via treatment with phenol and chloroform treatment. Chloroform is alone not sufficient. The phenol added helps in the destruction of proteins and chloroform helps in its dissolution under acidic conditions. | genetic_engineering | |
44d373d9 | -6dB is equivalent to __________ power gain. | [
"0.5",
"0.25",
"0.75",
"0.8"
] | A | At lower and higher frequencies the gain is decreasing. This fall or decrease in gain is known as roll-off rate. It is commonly specified in dB/octave or dB/decade. For a single order filter, the roll-off rate is 6dB/octave or 20dB/decade. | analog_circuits | |
c5749e3e | To find the true shape of the section, it must be projected on a plane parallel to the _____________ | [
"Profile plane",
"Vertical plane",
"Auxiliary plane",
"Section plane"
] | D | As we know true shape and size is obtained only when an object is projected on to the plane parallel to it. Likewise, as section always be plane surface to know its true shape it should be projected on to plane parallel to section plane only. | engineering_drawing | |
4976fe2a | What is a collinear system of forces for the bodies over which this theorem is to apply? | [
"The force system having all the forces parallel to each other",
"The force system having all the forces perpendicular to each other",
"The force system having all the forces emerging from a single point",
"Forces cannot form a collinear system of forces, it is not possible"
] | C | The force system having all the forces emerging from a point is called the collinear system of force. This is a type of system of the force, which is easy in the simplification. This is because as the forces are the vector quantity, the vector math is applied and the simplification is done. | engineering_mechanics | |
5cc2464d | The maximum value of σz on vertical line is obtained at the point of intersection of vertical plane with radial line at the angle of ____________ | [
"39°30’",
"39°45’",
"35°15’",
"39°15’"
] | D | The vertical stress first increases, attains a maximum value and then decreases. It can be shown that the maximum value of σz on vertical line is obtained at the point of intersection of vertical plane with radial line at the angle of39°15’. | geotechnical_engineering_i | |
0e421df5 | A voltage amplifier has a voltage gain of 100. What will be gain at 3dB cut-off frequencies? | [
"70.7",
"80.7",
"45.7",
"50"
] | A | 3dB cut-off frequency is the frequency at which the power becomes half of its maximum value. That is the voltage gain becomes 0.707 times maximum voltage gain. The importance of 3dB points is that for a human ear, it will not notice the fall in power of the signal up to 50% of maximum power. | analog_circuits | |
91c6afe3 | According to IS code, there are __________ types of failures of soil support beneath the foundation. | [
"2",
"4",
"3",
"5"
] | C | The code recognizes, depending upon the deformation associated with the load and the extent of development of failure surface, three types of failures of soil support beneath the foundations which are general, local and punching shear failure. | foundation_engineering | |
a8d88149 | Which are the methods for getting an ideal commutation? | [
"Resistance commutation",
"Voltage commutation",
"Current commutation",
"Resistance and voltage commutation"
] | D | Adding resistance between commutator segments and brushes, thus, reducing L/R and consequently getting faster commutation is one of the method. In voltage commutation we, introduce narrow poles called as interpoles to fasten the process. | dc_machines | |
549e38a4 | Evaluate \(\frac {Cot \, 54^{\circ }}{tan \, 36^{\circ }}\). | [
"0",
"1",
"\\(\\frac {4}{3}\\)",
"\\(\\frac {3}{4}\\)"
] | A | All trigonometric ratios are positive in the first quadrant and secant changes to cosecant when it is 90° or 270°.
Sec 75° = Sec (90° – 15°)
= Cosec 15° | mathematics_mcqs_-_class_10.json | |
923eb57f | What are non characteristics of session semantics? | [
"Each client obtains a working copy from the server",
"When file is closed, the modified file is copied to the file server",
"The burden of coordinating file sharing is ignored by the system",
"Easy to implement in a single processor system"
] | D | None. | operating_system | |
cb4f1783 | Which of the following filter we use in least square design methods? | [
"All zero",
"All pole",
"Pole-zero",
"Any of the mentioned"
] | B | Let us assume that hd(n) is specified for n > 0, and the digital filter is an all-pole filter. | digital_signal_processing | |
a560f4c3 | For Mutual exclusion to prevail in the system ____________ | [
"at least one resource must be held in a non sharable mode",
"the processor must be a uniprocessor rather than a multiprocessor",
"there must be at least one resource in a sharable mode",
"all of the mentioned"
] | A | If another process requests that resource (non – shareable resource), the requesting process must be delayed until the resource has been released. | operating_system | |
35f62ace | In process-to-process delivery, two processes communicate in which of the following methods? | [
"Client/Server",
"Source/Destination",
"Message Transfer",
"Peer to Peer"
] | A | The most common method used for this communication is Client/Server. The client requests a service through a particular port number to the port of the server using its socket address. Then the server responds by giving the requested service to the client port. | computer_network | |
d6b5a50b | Elements in an array are accessed _____________ | [
"randomly",
"sequentially",
"exponentially",
"logarithmically"
] | A | Elements in an array are accessed randomly. In Linked lists, elements are accessed sequentially. | data_structures_&_algorithms_i | |
443dc790 | If f(t) = 1⁄a sinh(at), then its Laplace transform is? | [
"1⁄s2-a2",
"2a ⁄ (s – b)2 + b2",
"n! ⁄ (s – a)n-1",
"Does not exist"
] | A | The Laplace transform of a function is given by
\(\{f(t)\}=F(s)=\int_0^{\infty} f(t)e^{-st}dt\)
put f(t) = f(t) = 1⁄a sinh(at)
On solving the above integral, we get the 1⁄s2-a2. | engineering_mathematics | |
686f252d | A backfill of a retaining wall consists of γ=19 kN/m3 which is 6 m high. Find the lateral earth pressure per meter length. Given coefficient of earth pressure at rest is 0.5. | [
"43 kN/m2",
"57 kN/m2",
"48 kN/m2",
"76 kN/m2"
] | B | Given,
γ = 19 kN/m2
z = 6 m
K0 = 0.5
P0 = K0 γz = 0.5×19×6
P0 = 57 kN/m2. | foundation_engineering | |
0bfb7dc9 | In a conductor after 1 minute of electron passage, current flown is found to be 1mA. How many electrons would have passed through that conductor? | [
"4.5×1020",
"5×1017",
"3.75×1017",
"3.75×1018"
] | A | Charge of one electron is 1.6 × 10-19coulumb, hence one coulomb implies reciprocal of 1.6×10-19 which is 6.25×1018. | instrumentation_transducers | |
b77f2dc0 | How many keys does the Triple DES algorithm use? | [
"2",
"3",
"2 or 3",
"3 or 4"
] | D | There are 256 keys =7.2×1016. | cryptograph_&_network_security | |
6a66f2c3 | 6. Find the capacitance when charge is 20 C has a voltage of 1.2V. | [
"32.67",
"16.67",
"6.67",
"12.33"
] | B | Capacitance is related to Q and V as C = Q/V. Put C = 20C and V = 1.2V, we get Q = 20/1.2 = 16.67 farad. | electromagnetic_theory | |
a3f8a1df | In a serial port interface, the INTR line is connected to _____ | [
"Status register",
"Shift register",
"Chip select",
"None of the mentioned"
] | A | None. | computer_architecture | |
f9758c3e | The IoT operates at ___________ scale. | [
"Machine",
"Human",
"Device",
"Sensor"
] | A | The IoT operates at machine scale, by dealing with machine to machine generated data. This machine generated data creates discrete observations at very high signal rates. | iot | |
1ba701c7 | The Laplace transform of the signal e-2tu(t+1) is ___________ | [
"\\(\\frac{1}{s+2}\\)",
"\\(\\frac{e^{-s}}{s+2}\\)",
"\\(\\frac{e^{-(s+2)}}{s+2}\\)",
"\\(\\frac{-e^{-s}}{s+2}\\)"
] | A | X(s) = \(\int_0^∞ x(t) e^{-st} \,dt\)
Here, the given signal is u (t+1).
Hence, u (t+1) = 1 for all t>-1 and = 0 for all t<-1.
So, limit is from 0 to ∞
∴ Laplace of signal = \(\int_0^∞ e^{-2t} e^{-st} \,dt = \frac{1}{s+2}\). | signals_and_systems | |
859ced69 | Wireless transmission of signals can be done via ___________ | [
"radio waves",
"microwaves",
"infrared",
"all of the mentioned"
] | D | Wireless transmission is carried out by radio waves, microwaves and IR waves. These waves range from 3 Khz to above 300 Ghz and are more suitable for wireless transmission. Radio waves can penetrate through walls and are used in radio communications, microwaves and infrared (IR) waves cannot penetrate through walls and... | computer_network | |
c23ee600 | What is port scanning? | [
"It is a software used to scan system for attack",
"It is a software application designed to probe a server or host for open ports",
"It is software used to scan system for introducing attacks by brute force",
"None of the mentioned"
] | B | None. | operating_system | |
2f2c5cf6 | Which of the following error message will be displayed if ORDER CLAUSE is not mentioned in ROW NUMBER function? | [
"“The ranking function “ROW_NUMBER” must have an ORDER BY clause.”",
"“The ranking function “ROW_NUMBER” must have an OVER BY clause.”",
"“The ranking function “ROW_NUMBER” must have an PARTITION BY clause.”",
"All of the mentioned"
] | A | ORDER BY CLAUSE is not optional clause in ROW NUMBER function. | sql_server | |
f0c54a99 | Why audio signals cannot be transmitted directly? | [
"The signal has more noise",
"The signal cannot be amplified for distance communication",
"The transmitting antenna length is very small to design",
"The transmitting antenna length is very large and impracticable"
] | D | Audio signals require a transmitting antenna of very large and impracticable length. This is because of the high wavelength of the sound waves produced. Therefore, audio signals cannot be transmitted directly. | physics_mcqs_-_class_12.json | |
b873c9b1 | The system administrator is also known as _____ | [
"master user",
"superuser",
"root user",
"master and super user"
] | D | The system administrator has access to huge powers. This entrusted person is also known as the root user or superuser. | unix | |
5c9b0e14 | What is the unit of Helmholtz free energy? | [
"Kelvin",
"Joule",
"Kilowatt",
"Newton"
] | B | Helmholtz free energy is defined as the thermodynamic potential that measures the useful work obtained from a closed thermodynamic system. The SI unit of Helmholtz free energy is Joule. | thermal_engineering | |
cd5a4252 | 5/2 way single solenoid valve has: | [
"2 ports 2 positions",
"5 ports 2 positions",
"5 ports 5 positions",
"2 ports 5 positions"
] | A | Check valve is a one-way valve that lets air into the reservoir of a compressor, but doesn’t let it out as the name indicates it allows air to enter as it has one entrance. | control_systems | |
ecfa1848 | How many scientific fundamental quantities are given S.I. units? | [
"5",
"7",
"3",
"9"
] | B | There are seven scientific fundamental quantities i.e. Length(l), Time(t), Mass(m), Electric current(I), Thermodynamic temperature(T), Amount of substance(n) & Luminous intensity(Iv). They can’t be expressed as other quantities i.e. independent. | chemistry_mcqs_-_class_11.json | |
575cff20 | The current produced in reverse-bias is called as __________ | [
"Reverse Current",
"Breakdown Current",
"Negative Current",
"Leakage Current"
] | A | When a P-N Junction diode is forward biased, the thickness of the depletion region becomes negligibly small. Thus, the resistance of the semiconductor decreases. | engineering_physics_ii | |
5e8b6d64 | For a given centrifugal pump _____ | [
"The discharge varies directly as the speed",
"The head varies inversely as the speed",
"The power varies as the square of the speed",
"The discharge varies as the square of the speed"
] | A | The dimensionless number for centrifugal pump is \(\frac{Q}{ND^3}\)
Hence discharge is directly proportional to speed. | thermal_engineering | |
ac069b35 | Memory organization in which users write programs in modules with different characteristics. | [
"Physical",
"Logical",
"Structural",
"Simple"
] | A | The secondary memory is the long term store for programs and data while main memory holds program and data currently in use. This is a physical organization. | computer_fundamentals | |
4b69ba8a | How do we calculate the inverse hybrid-pi conductance in low frequency H-parameters g12 of a two-port network? | [
"g12 = I2 / I1",
"g12 = I1 / I2",
"g12 = V1 / V2",
"g12 = V2 / V1"
] | C | The inverse hybrid-pi conductance in low frequency H-parameters g21 for a two-port network is calculated by open circuiting the output terminal. In this case, the current I2 is equal to zero. The parameter g21 is calculated by taking the ratio of output terminal voltage over input terminal voltage. It is also known as ... | electronic_devices_&_circuits | |
e735a9ca | For the isentropic stagnation state, | [
"it is a reference state",
"designated with subscript zero",
"both of the mentioned",
"none of the mentioned"
] | C | Here V is the actual velocity and c is the sonic velocity. | thermodynamics | |
87aab467 | 7. 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">x <span class="sy0">=</span> abcd <span class="kw1">print</span><span class="br0">(</span... | [
"[‘a’, ‘b’, ‘c’, ‘d’]",
"[‘abcd’]",
"[[‘a’], [‘b’], [‘c’], [‘d’]]",
"none of the mentioned"
] | D | NameError, we have not defined abcd. | python | |
9388782c | Example of an external interrupt is | [
"divide by zero interrupt",
"keyboard interrupt",
"overflow interrupt",
"type2 interrupt"
] | B | Since the keyboard is external to the processor, it is an external interrupt. | microprocessor | |
40ebc64e | The next statement | [
"immediately stops processing the current record",
"go to the next record",
"immediately stops processing the current record & go to the next record",
"none of the mentioned"
] | C | None. | linux | |
85af0f8f | Consider a characteristic equation, s4+3s3+5s2+6s+k+10=0. The condition for stability is | [
"K>5",
"-10<K",
"K>-4",
"-10<K<-4"
] | C | In Routh array analysis the first column must be positive and after solving K<16 and K>9. | control_systems | |
26bc397c | An Eddy current type displacement sensor can detect which types of objects? | [
"Wooden Objects",
"Metal Objects",
"Plastic Objects",
"Bricks"
] | B | Eddy current type displacement sensor can detect metal objects because it uses high frequency magnetic field for the detection of objects. When this metallic object come in the range of magnetic field, due to the electromagnetic induction, eddy current starts to flow through the object in vertical direction which cause... | mechatronics | |
d7b9fcfd | Involute splines have stub teeth with a pressure angle of ___ | [
"30",
"45",
"60",
"Can’t be determined"
] | B | Woodruff key is a sunk key and doesn’t permit axial moment. | machine_design | |
4bd4df60 | Which errors are detected using duplication codes? | [
"single errors",
"unidirectional errors",
"bidirectional errors",
"multiple errors"
] | D | The type of error in self-checking techniques are simple errors, unidirectional errors and multiple errors. | vlsi | |
8ca17c78 | All the gases resulting from a combustion process including the water vapour is known as | [
"Flue gas",
"Dry basis",
"Orsat analysis",
"None of the mentioned"
] | D | Properties of a combustion system. | chemical_process_calculation | |
cc977d87 | The significant depth is assumed up to a level at which the net increase in vertical pressure becomes _______ of initial overburden pressure. | [
"10% to 20%",
"less than 10%",
"20% to 30%",
"50% to 70%"
] | A | The inside clearance of the sampler is defined as the difference between the outside diameter and the inside diameter of the core part through which the core enters.
∴ Inside clearance = \(\frac{D_3-D_1}{D_1} ×100. \) | foundation_engineering | |
c933bb15 | ___________ wall is used to resist lateral forces like severe wind. | [
"Knee wall",
"Cavity wall",
"Infill wall",
"Shear wall"
] | D | Shear wall is a long continuous structure, just like that surrounding an elevator. It has excellent strength and can withstand heavy winds, earthquakes. | basic_civil_engineering | |
5f93394f | What is the formula for finding out the width of the commutator of the DC machines? | [
"width of the commutator = 3.14*(Diameter of the commutator)",
"width of the commutator = 3.14*(Diameter of the commutator)*(Number of armature coils)",
"width of the commutator = 3.14*(Diameter of the commutator) / (Number of armature coils)",
"width of the commutator = Number of armature coils / 3.14*(Diame... | C | First by the design of the armature, the number of armature coils is found out. Then the diameter of the commutator is measured. | design_of_electrical_machines | |
16d7c91b | Which of the following testing types is not a part of system testing? | [
"Recovery testing",
"Stress testing",
"System testing",
"Random testing"
] | A | None. | software_engineering | |
93612a14 | If two networks have same graph with different type of elements between corresponding nodes, then? | [
"\\(\\Sigma^{b}_{k=1}\\)V1ki2k = 0, \\(\\Sigma^{b}_{k=1}\\)V2ki1k = 0",
"\\(\\Sigma^{b}_{k=1}\\)V1ki2k ≠ 0, \\(\\Sigma^{b}_{k=1}\\)V2ki1k = 0",
"\\(\\Sigma^{b}_{k=1}\\)V1ki2k = 0, \\(\\Sigma^{b}_{k=1}\\)V2ki1k ≠ 0",
"\\(\\Sigma_{k=1}^{b}\\)V1ki2k ≠ 0, \\(\\Sigma^{b}_{k=1}\\)V2ki1k ≠ 0"
] | A | i1=i2=4A, i3=4A. V1=-20V, V2=0V, V3=20V. Algebraic sum =<img src="https://www.sanfoundry.com/wp-content/uploads/2017/06/network-theory-questions-answers-tellegans-theorem-q9a.png" alt="network-theory-questions-answers-tellegans-theorem-q9a" width="260" height="32" class="alignnone size-full wp-image-170296" /> | network_theory | |
c38fbd5d | What does os.link() do? | [
"create a symbolic link",
"create a hard link",
"create a soft link",
"none of the mentioned"
] | B | os.link(source, destination) will create a hard link from source to destination. | python | |
def274be | Which one of the following is not a platform specific code? | [
"x86 BIOS",
"EFI on ia64",
"both x86 BIOS and EFI on ia64",
"none of the mentioned"
] | D | None. | linux | |
f9d67a32 | 8. The maximum power delivered to the load for short transmission line is at | [
"β=α",
"β>α",
"β=δ",
"β>δ"
] | A | Receiving end active power for a short transmission line is
<img src="https://www.sanfoundry.com/wp-content/uploads/2018/05/power-systems-questions-answers-symmetrical-component-transformation-1-q1a.png" alt="power-systems-questions-answers-symmetrical-component-transformation-1-q1a" width="224" height="47" class="alig... | power_systems | |
b041a9df | Aniline is usually purified by which of the following method? | [
"Steam distillation",
"Simple distillation",
"Vacuum distillation",
"Extraction with a solvent"
] | A | Aniline is usually purified by Steam distillation. The separation is long, tedious and potentially dangerous – involving steam distillation, solvent extraction and a final distillation. | organic_chemistry | |
41abcb1c | Pulse radar operating at 10GHz frequency has an antenna with a gain of 28 dB and a transmitted power of 2kW. If it is desired to detect a target of cross section 12m2, and the minimum detectable signal is -90 dBm, the maximum range of the radar is: | [
"8114 m",
"2348 m",
"1256 m",
"4563 m"
] | A | The amount of energy incident on the target is proportional to the energy radiated; gain of the antenna G, and R is the distance of the target from the radar system. As the distance from the radar system, the energy incident on the target reduces. | microwave_engineering | |
19ad927b | A filter that passes low frequencies is _____________ | [
"Band pass filter",
"High pass filter",
"Low pass filter",
"None of the Mentioned"
] | C | Low pass filter passes low frequencies. | digital_image_processing | |
4ea489c7 | A truck and a car are moving with equal velocity. On applying brakes, both will stop after a certain distance, then? | [
"Truck will cover less distance before stopping",
"Car will cover less distance before stopping",
"Both will cover equal distance",
"None of the mentioned"
] | B | Being lighter than a truck, the car has less kinetic energy. On applying brakes with the same force, the car will cover less distance before coming to rest. | engineering_physics_i | |
a15bba74 | On a summer day, a scooter rider feels more comfortable while on the move than while at a stop light because | [
"An object in motion captures less radiation",
"Air has a low specific heat and hence it is cooler",
"More heat is loss by convection and radiation while in motion",
"Air is transparent to radiation and hence it is cooler than the body"
] | D | The situation corresponds to forced convection when the scooter is in motion and the convective heat transfer coefficient for forced convection is greater than that for free convection. | heat_transfer | |
ffc44521 | In batch process, when the tank gets filled then it indicates that ____________ | [
"To stir more",
"Softening is completed",
"To add the catalyst",
"To add the lime"
] | A | In hot lime soda process the bacteria count in water is reduced to the minimum due to the high temperatures that are applied to the water during the process. | applied_chemistry | |
df8b0dac | The detention period of detritus tank is ____________ | [
"40 seconds",
"1 minute",
"3 minute",
"1 hour"
] | C | The detention period of detritus tank is 3 minutes. It is used to remove the grit present in the wastewater. | environmental_engineering | |
22ca8b83 | 5. What will be the output of the following C++ 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="cpp"><pre class="de1"><span class="co2">#include <iostream></span> <span class="co2">#include <string></s... | [
"5",
"Run-time error",
"Segmentation fault",
"Compile-time error"
] | D | A pointer cannot be directly assigned to references, because types of pointer(int*) and reference(int) are different here. You need to think before assigning two variable of different types otherwise the program throws error. | c++ | |
fbf94a39 | In linear mode operation, the parasitic capacitances that exists are ___________ | [
"Nonzero Gate to source capacitance",
"Nonzero Gate to drain capacitance",
"Zero gate to substrate capacitance",
"All of the mentioned"
] | D | In linear-mode operation, the conducting channel exists, therefore there will be a finite amount of gate to source and gate to drain capacitances. Since the conducting channel exists, gate to substrate capacitance is reduced to zero. | vlsi | |
284167dc | Which of the following is an exact estimate? | [
"Abstract",
"Detailed",
"Rough",
"Preliminary"
] | B | Detailed estimate is required for arranging the contract and entering into the agreement. In this estimate, the quantities are worked out in the order in which construction proceeds. For getting technical sanction, the detailed estimate is prepared. | strength_of_materials | |
24d79f12 | What is the humid volume of the system at 100oF with humidity 20%? | [
"18.6 ft3/lb",
"22.4 ft3/lb",
"26.5 ft3/lb",
"29.4 ft3/lb"
] | A | V = (0.73T + 336)(1/29 + H/18) = (0.73*100 + 336)(1/29 + 0.2/18) = 18.6 ft3/lb. | basic_chemical_engineering | |
9c62f786 | A microfluid is the one in which ____ | [
"Fluid motion is restricted",
"Fluid molecules are free to move",
"Molecules do not take part in reaction",
"Fluid is compressed in due course of reaction"
] | B | A microfluid is characterized by free movement of fluid molecules. Molecules collide and intermix. | chemical_reaction_engineering | |
a7ebf648 | If differentiation of any function is infinite at any point and constant at other points then it means ___________ | [
"Function is parallel to x-axis at that point",
"Function is parallel to y-axis at that point",
"Function is constant",
"Function is discontinuous at that point"
] | A | Since slope of a function is given by dy⁄dx at that point.Hence,when dy⁄dx = ∞ means slope of a function is 90 degree i.e,parallel to y axis. | engineering_mathematics | |
eae6adf5 | ________ process consists of making a number of holes in the ground and then filling these holes by the cement grout under pressure. | [
"Chemical grouting",
"Cement grouting",
"Freezing process",
"Electro osmosis process"
] | B | In providing sumps and side drains, the side drains are constructed along the bottom of the foundation Trenches. The sumps are constructed at a distance of 45 M to 60 M and the side drains are given such as slope that water is collected in the sumps. | construction_&_building_materials | |
da2ebcb4 | Atomic number of a species is the number of: | [
"Neutrons",
"Protons",
"Valence electrons",
"Nucleons"
] | B | Atomic number or the number of protons is the property that differentiates atoms of one species from another. For e.g., atomic numbers of Hydrogen and Helium are 1 and 2 respectively. | materials_science | |
5b71d0a4 | 9. The output of the following command is __________<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="text"><pre class="de1">$ cp abd/ .user_06</pre></div></div></div></div></div></div> | [
"copies .user_06 file in current directory",
"copies .user_06 file in parent directory of directory named abd",
"undefined behaviour",
"erroneous output"
] | A | The ( . ) represents the current directory so the above command will create a copy of file_01 in the current working directory. | unix | |
d60746c4 | What does the data signal do in the keypad application? | [
"The row and column encoded data",
"The ring encoded data",
"The freeze locator data",
"The ring counter data"
] | A | The data signal arranges the information with the help of data flow in row and column manner. It encodes the data to be sent. | digital_circuits | |
f7cef78b | Consider an electric motor having resistance of 10 Ω, 20 Ω and 30 Ω respectively. The percentage of energy dissipated by 10 Ω earthing plate is ____________ | [
"More than 50% of total energy",
"Less than 50% of total energy",
"Depends on the materials of the three plates",
"May be more or less than 50% of total energy"
] | A | The parallel combination of 30 Ω and 20 Ω is 12 Ω. Since 12 Ω and 10 Ω are in parallel, the 10 ohm plate draws more than 50% current and dissipates more than 50% energy. | network_theory | |
0499ce5b | Two plates are kept at a distance of 0.1m and their potential difference is 20V. An electron is kept at rest on the surface of the plate with lower potential. What will be the velocity of the electron when it strikes another plate? | [
"1.87*106 m/s",
"2.65*106 m/s",
"7.02*1012 m/s",
"32*10-19 m/s"
] | A | We know that electric potential does not depend on the path, i.e. it is a state function. Therefore if we rotate a charge around another in a complete circular path, the potential energy of its initial and final points is the same. Therefore, there is no change of potential energy of the charge and hence net work done ... | physics_mcqs_-_class_12.json | |
44671df3 | What is the advantage of the use of slip gauge standards for dial comparators? | [
"Size of the standard is equal to one of the limits of the plug gauge size",
"Size of the standard is greater than one of the limits of the plug gauge size",
"Size of the standard is less than one of the limits of the plug gauge size",
"Slip gauges are more accurate"
] | A | The advantage of the slip gauge standards for dial comparators is that size of the standard is equal to one of the limits of the plug gauge size and hence the effect of errors of the comparator scale graduations is minimised. | engineering_metrology | |
c336dd6e | Skip lists are similar to which of the following datastructure? | [
"stack",
"heap",
"binary search tree",
"balanced binary search tree"
] | A | Let us call the nodes 20, 30, 40 as top lines and the nodes between them as normal lines. the advantage of skip lists is we can skip all the elements between the top line elements as required. | data_structures_&_algorithms_i | |
321914a6 | Which of the following is an incorrect feature of cloud storage backup solution? | [
"Logon authentication",
"Low Encryption",
"Fast backup",
"None of the mentioned"
] | B | High Encryption is provided by Cloud Backup Storage. | cloud_computing | |
04ab79c5 | Foreign key is the one in which the ________ of one relation is referenced in another relation. | [
"Foreign key",
"Primary key",
"References",
"Check constraint"
] | B | The foreign-key declaration specifies that for each course tuple, the department name specified in the tuple must exist in the department relation. | database_management |
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