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 |
|---|---|---|---|---|---|---|
caca3cb5 | A system is said to be dynamic if the output of the system depends on ___________ | [
"The past Input",
"The Future Input",
"The Present Input",
"Both the Present and future Inputs"
] | A | For a system with input e-at sin (ωt) and output Ke-bt sin (v t + ∅), frequency (v) to output must be equal to input frequency (ω) while b will depend on system parameters and need not be equal to a. | signals_and_systems | |
149114f3 | Solution of the differential equation \(\frac{dy}{dx} = (4x+2y+1)^2\) is ______ | [
"\\(\\frac{1}{2\\sqrt{2}} tan^{-1}(\\frac{4x+2y+1}{\\sqrt{2}})=x+c \\)",
"\\(\\frac{1}{\\sqrt{2}} cot^{-1}(4x+2y+1)=x+c \\)",
"\\(\\frac{1}{\\sqrt{2}} tan^{-1}(\\frac{4x+2y+1}{\\sqrt{2}})=c \\)",
"cot-1(4x+2y+1)=x+c"
] | A | \(\frac{dy}{dx} = (4x+2y+1)^2\)
here we use substitution for \( 4x+2y+1 = t→4 + 2\frac{dy}{dx} = \frac{dt}{dx} \rightarrow \frac{dy}{dx} = \frac{1}{2} \frac{dt}{dx} – 2\)
\(\frac{1}{2} \frac{dt}{dx} – 2 = t^2\)
\(\frac{dt}{dx}=2t^2+4\)
separating the variable and integrating
\(\int \frac{1}{2t^2+4} \,dt = \int dx... | engineering_mathematics | |
7ed0b49a | -v option is used with cp command for displaying _____ | [
"errors",
"informative messages",
"diagnostic messages",
"file contents"
] | A | -n option is used with cp command when we do not want to want to overwrite the existing file. It means that if the destination file already exists, then it should not be overwritten. | unix | |
21f42f81 | Mapping of network file system protocol to local file system is done by ____________ | [
"network file system",
"local file system",
"volume manager",
"remote mirror"
] | A | None. | operating_system | |
1dd09fdc | A point mass m is placed inside a spherical shell of radius R and mass M at a distance R/2 from the centre of the shell. The gravitational force exerted by the shell on the point mass is ___________ | [
"GMm/R2",
"GMm/R",
"Zero",
"4GMm/R2"
] | C | At the inner position of the shell, the gravitational field intensity (E) is zero.
Therefore, F=mE=0. | engineering_physics_i | |
1ce64def | In holographic data storage, the information is stored in ______________ | [
"Pendrives",
"Cells",
"Crystals",
"Diode"
] | C | Holography is used in holographic data storage. In this method, all the data is stored in crystals or photopolymers. It is mostly used in electronic data storage devices. | engineering_physics_ii | |
ec0ff91f | The dependence of the flow stress on the strain rate is _________ | [
"more prominent at higher strain",
"is more prominent at lower strain",
"constant at all the strain values",
"no relationship"
] | B | The dependence of the flow stress on the strain rate (or the variation in flow stress) is much higher at low strain values than compared to higher strain values. | mechanical_metallurgy | |
a69f8308 | 10. If V = 2x2y + 20z – 4/(x2 + y2), find the density at A(6, -2.5, 3) in nC/m2. | [
"0.531i – 0.6373j – 0.177k",
"0.6373i – 0.177j -0.531k",
"0.177i – 0.6373j – 0.531k",
"0.531i – 0.177j – 0.6373k"
] | B | Given V = 60cos θ/r. For r = 3m and θ = 60, we get V = 60cos 60/3 = 20cos 60 = 10 units. | electromagnetic_theory | |
ef7d1872 | What is the energy balance to open system? | [
"Energy in the system is constant",
"Matter in the system is constant",
"Matter is constant energy is variable",
"Both matter and energy are variable"
] | D | Both matter and energy are variable in an open system. | basic_chemical_engineering | |
b54bd90a | A part of a system that is physically distinct and macroscopically homogeneous of fixed or variable composition is known as | [
"Concentration",
"State",
"Phase",
"None of the mentioned"
] | C | A part of a system that is physically distinct and macroscopically homogeneous of fixed or variable composition is known as phase. | chemical_process_calculation | |
0e66674f | Why synthetic production of glycerol is not commercially successful? | [
"Because process is expensive",
"Because no marketing demands",
"Because process is hazardous",
"Because of the large-scale production of biodiesel from fats"
] | A | The epichlorohydrin process is the most important; it involves the chlorination of propylene to give allyl chloride, which is oxidized with hypochlorite to dichlorohydrins, which reacts with a strong base to give epichlorohydrin. This epichlorohydrin is then hydrolyzed to give glycerol.
<img src="https://www.sanfoundry... | organic_chemistry | |
3ed101aa | Aggregation of neurofilaments leads to ____________ | [
"vision disorders",
"skin disorders",
"lung disorders",
"neurodegenerative disorders"
] | A | Vimentin is a type III intermediate filament, found in macrophages, fibroblasts, white blood cells. Deficiency of gene expressing vimentin leads to minor abnormalities. | cell_biology | |
38ebab5e | In T beams, maximum ______ is less. | [
"Shear force",
"Bending moment",
"Bending stress",
"Shear stress"
] | B | In T beams, the maximum bending moment is less because of the sagging moment is effectively resisted. The maximum deflections are also less in these beams. They are preferred for larger spans when compared to simply supported beams. | strength_of_materials | |
f5b8bf8e | Optimal page – replacement algorithm is difficult to implement, because ____________ | [
"it requires a lot of information",
"it requires future knowledge of the reference string",
"it is too complex",
"it is extremely expensive"
] | C | None. | operating_system | |
92082af2 | WiMAX provides ________ | [
"simplex communication",
"half duplex communication",
"full duplex communication",
"no communication"
] | C | WiMax was developed to provide wireless broadband access to buildings. It can also be used to connect WLAN hotspots to the Internet. It is based on IEEE 802.16 standards. | computer_network | |
cbf2f665 | What is the stop band frequency of the normalized low pass Butterworth filter used to design a analog band pass filter with -3.0103dB upper and lower cutoff frequency of 50Hz and 20KHz and a stop band attenuation 20dB at 20Hz and 45KHz? | [
"2 rad/sec",
"2.25 Hz",
"2.25 rad/sec",
"2 Hz"
] | C | Given information is
Ω1=2π*20=125.663 rad/sec
Ω2=2π*45*103=2.827*105 rad/sec
Ωu=2π*20*103=1.257*105 rad/sec
Ωl=2π*50=314.159 rad/sec
We know that
A=\(\frac{-Ω_1^2+Ω_u Ω_l}{Ω_1 (Ω_u-Ω_l)}\) and B=\(\frac{Ω_2^2-Ω_u Ω_l}{Ω_2 (Ω_u-Ω_l)}\)
=> A=2.51 and B=2.25
Hence ΩS=Min{|A|,|B|}=>ΩS=2.25 rad/sec. | digital_signal_processing | |
b7d2873f | What is the bias of a simplified common base (CB) amplifier configuration? | [
"Reverse biased",
"Forward biased",
"Forward and reverse biased",
"It is independent of the bias"
] | B | The common base design amplifier works to such an extent that the input signal is applied to the emitter terminal and the yield is taken from the collector terminal. The emitter current is likewise the input current, and the collector current is additionally the yield current. The base-emitter intersection is forward-b... | electronic_devices_&_circuits | |
c65b0f0f | Solve the logarithmic function of ln(\(\frac{1+5x}{1+3x}\)). | [
"2x – 8x2 + \\(\\frac{152x^3}{3}\\) – …",
"x2 + \\(\\frac{7x^2}{2} – \\frac{12x^3}{5}\\) + …",
"x – \\(\\frac{15x^2}{2} + \\frac{163x^3}{4}\\) – …",
"1 – \\(\\frac{x^2}{2} + \\frac{x^4}{4}\\) – …"
] | A | To solve the logarithmic function ln(\(\frac{1+5x}{1+3x}\)) = ln(1+5x) – ln(1+3x) = (5x – \(\frac{(5x)^2}{2} + \frac{(5x)^3}{3}\) – …) – (3x – \(\frac{(3x)^2}{2} + \frac{(3x)^3}{3}\) – …) = 2x – 8x2 + \(\frac{152x^3}{3}\) – … | discrete_mathematics | |
a8228652 | Which of the following boards are used in making partitions covering? | [
"Lamin boards",
"Particle boards",
"Straw boards",
"Eco board"
] | A | The laminated boards having a core of strips not exceeding 7 mm thickness are glued together between two or more veneers are called laminated boards. Laminated boards are used in making partitions covering, packing cases and for floor coverings. | strength_of_materials | |
f537dc2d | Which of the following statement is correct? | [
"p ∨ q ≡ q ∨ p",
"¬(p ∧ q) ≡ ¬p ∨ ¬q",
"(p ∨ q) ∨ r ≡ p ∨ (q ∨ r)",
"All of mentioned"
] | D | Verify using truth table, all are correct. | discrete_mathematics | |
80594945 | A metal wire of linear mass density of 9.8/gm is stretched with a tension of 10kg wt between two rigid supports 1m apart. The wire passes at its middle point between the poles of a permanent magnet and it vibrates in resonance, when carrying an alternating current of frequency v. The frequency v of the alternating sour... | [
"50 Hz",
"100 Hz",
"200 Hz",
"25 Hz"
] | B | For producing node, the superposing wave must travel in the opposite direction (x term must have opposite sign) and its displacement must be negative. Hence the correct option is y=-asin(ωt+kx)
Moreover,
y=y1+y2=asin(ωt-kx)-asin(ωt+kx)
y=-2acosωtsinkx
At x=0, y = 0. That is a node is formed. | engineering_physics_i | |
3bee428d | Information architecture influences: | [
"Answer choice",
"Site structure",
"Labeling",
"Navigation design"
] | B | The actions in GUI are usually performed through direct manipulation of the graphical elements. | database_management | |
e406a009 | The unit that provides a four level protection mechanism, for system’s code and data against application program is | [
"central processing unit",
"segmentation unit",
"bus interface unit",
"none of the mentioned"
] | B | The segmentation unit provides a four level protection mechanism, for protecting and isolating the system’s code and data, from those of the application program. | microprocessor | |
3fc744c6 | Which mechanism is applied to use a design pattern in an OO system? | [
"Inheritance",
"Composition",
"All of the mentioned",
"None of the mentioned"
] | C | Using inheritance, an existing design pattern becomes a template for a new subclass.Composition is a concept that leads to aggregate objects. | software_engineering | |
f6f5b86c | On increasing the temperature, the viscosity of the fluid __________ | [
"Decreases",
"Increases",
"Remains constant",
"None of the mentioned"
] | A | On increasing the temperature, the viscosity of the fluid decreases. This is because of the decrease in inter-molecular forces. | engineering_chemistry_i | |
a4f5b4a1 | In deflection diagrams, which of the following can have zero angular deflection? | [
"Pin support",
"Roller support",
"Fixed support",
"Hinge"
] | C | Only fixed support exerts moment at its point of contact. | structural_analysis | |
0228ebd8 | A mixture of fatty acyl methyl esters are separated based on __________ | [
"Charge",
"Chain length and degree of saturation",
"Molecular weight",
"Ionic size"
] | B | Based on chain length and degree of saturation, mixture of fatty acyl methyl esters is separated. | biochemistry | |
a1c329bf | The traditional way to exit and LISP system is to enter __________ | [
"quit",
"exit",
"bye",
"ok"
] | B | None. | artificial_intelligence | |
a3048650 | Which of the following is energy independent? | [
"Active transport",
"Primary active transport",
"Secondary active transport",
"Passive transport"
] | D | Active transport is ATP dependent. | biochemistry | |
ff6f8998 | The temperature at which the solid melts at 1 atm is called | [
"Normal boiling point",
"Normal melting point",
"Normal freezing point",
"None of the mentioned"
] | B | The temperature at which the solid melts at 1 atm is called Normal melting point. | chemical_process_calculation | |
fe0ebf47 | The general form for calculating the number of rows in a truth table is ________ | [
"2n",
"2n+1",
"2n",
"2n+1"
] | B | The RHS is commonly referred to as the expression. The symbols X, Y and Z are commonly referred to as the literals of the function. | computer_fundamentals | |
563fc526 | What are the applications of dequeue? | [
"A-Steal job scheduling algorithm",
"Can be used as both stack and queue",
"To find the maximum of all sub arrays of size k",
"To avoid collision in hash tables"
] | B | If the list is empty, this new node will point to ‘trail’ and will be pointed at by ‘head’. Otherwise, traverse till the end of the list and insert the new node there. | data_structures_&_algorithms_i | |
a949db8d | The print and printf statements can be told to send their output to other place except standard output, is called | [
"redirection",
"redistribution",
"reinsertion",
"none of the mentioned"
] | A | None. | linux | |
744580c6 | The odd component of the signal X (t) = ejt is _______________ | [
"Sin t",
"Cos t",
"Sinh t",
"Cosh t"
] | B | Let Xe (t) represents the even component of X (t)
Now, Xe (t) = \(\frac{1}{2}\)[X (t) + X (-t)]
= \(\frac{1}{2}\)[ejt + e-jt]
= cos t. | signals_and_systems | |
b1e94efb | 2. The continuity equation is a combination of which of the two laws? | [
"Ohm’s law and Gauss law",
"Ampere law and Gauss law",
"Ohm’s law and Ampere law",
"Maxwell law and Ampere law"
] | B | I = ∫ J.ds is the integral form of Ohm’s law and Div (J) = dq/dt is the Gauss law analogous to D. Through these two equations, we get Div(J) = -dρ/dt. This is the continuity equation. | electromagnetic_theory | |
723c0371 | Which of the following is not true regarding the synthesis of triacylglycerol in adipose tissue? | [
"Phosphatidate is hydrolyzed",
"Glycerol 3-phosphate dehydrogenase plays an important role",
"Glycerol kinase plays an important role",
"It is synthesized from dihydroxyacetone phosphate"
] | C | The enzyme glycerol kinase has no role to play in the synthesis of triacylglycerol. | biochemistry | |
e7df3562 | Which function is used to check whether a character is an alphabet? | [
"isalpha()",
"isalnum()",
"isdigit()",
"isblank()"
] | A | Character classification provides isalpha() function to check whether a character in C++ is an alphabet or not. | c++ | |
6428f946 | Which activity is concerned with identifying the task at the final embedded systems? | [
"high-level transformation",
"compilation",
"scheduling",
"task-level concurrency management"
] | D | There are many design activities associated with the platforms in the embedded system and one such is the task-level concurrency management which helps in identifying the task that needed to be present in the final embedded systems. | embedded_systems | |
9ed31975 | Which of the following is not a reason for beginning oscillations in RC phase shift oscillator? | [
"Phase shift network",
"Noise inherent in transistor",
"Minor variations in the voltage DC source",
"Square wave signal"
] | A | Phase shift network doesn’t initialize the oscillation it just phase shift a given frequency. Oscillation will start by noise inherent of transistor or by minor voltage variations in DC source. | analog_circuits | |
48af7c1d | To indicate the I/O device that its request for the DMA transfer has been honored by the CPU, the DMA controller pulls | [
"HLDA signal",
"HRQ signal",
"DACK (active low)",
"DACK (active high)"
] | C | The DACK (active low) line of the used channel is pulled down by the DMA controller to indicate the I/O device that its request for the DMA transfer has been honored by the CPU. | microprocessor | |
38e4e520 | What is the correct formula to get power factor angle in lagging condition? | [
"sin φ= X/R",
"tan φ= R/X",
"cos φ = R/√(R2+X2)",
"cos φ= R/X"
] | C | For lagging condition derivative of voltage regulation with respect to φ is obtained and solved for the power factor angle calculations we’ll get tan φ = R/X for leading condition, for lagging condition we’ll get tan φ= X/R. In terms of cosine function, we’ll get cos φ = R/√(R2+X2). | transformers | |
027f153b | How many moles of Fe2O3 are produced in the reaction? | [
"11",
"22",
"33",
"44"
] | D | Required moles of FeS2 = 4(Extent of the reaction). | chemical_process_calculation | |
30c122ca | Which types of forces are generated during earthquake? | [
"Vertical shear",
"Horizontal shear",
"Bending moment",
"Combination of horizontal and vertical shear"
] | B | Ground is displaced and ground is subjected to sudden movements. This causes differential movements in building leading to horizontal shear. | structural_analysis | |
888e84ea | 10. What will be the output of the following Python code snippet?<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">a<span class="sy0">=</span><span class="br0">{</span><span class="br0">}</span> ... | [
"Exception is thrown",
"{‘b’: [2], ‘a’: 1}",
"{‘b’: [2], ‘a’: [3]}",
"{‘b’: [2, 3, 4], ‘a’: 1}"
] | D | Mutable members can be used as the values of the dictionary but they cannot be used as the keys of the dictionary. | python | |
81dc5c0a | The gate descriptor contains the information of | [
"destination of control transfer",
"stack manipulations",
"privilege level",
"all of the mentioned"
] | D | The gate descriptor contains the information regarding the destination of control transfer, required stack manipulations, privilege level and its type. | microprocessor | |
07c10346 | Which one of the following command is used for searching for a pattern in one or more file(s)? | [
"cd",
"cp",
"paste",
"grep"
] | D | UNIX has a special family of commands for handling search requirements, and the principal member of this family is the grep command. This command scans its input for a pattern and displays the lines containing the pattern, the line numbers or filenames containing the pattern. | unix | |
82142fa2 | The ___________ are generally provided to give light and ventilation both to the interior part of a building. | [
"Ventilators",
"Doors",
"Windows",
"Lintels"
] | C | When Windows are provided for a purpose of light only, as in case of storage room, showrooms, etc., they may be fixed so that they cannot be open. But when Windows are provided for light and ventilation, some or all the portions of Windows must open. | construction_&_building_materials | |
654654d7 | Which of the following expression is correct regarding deoxygenation constant where symbols have their usual meaning? | [
"KDT = KD20 + (1.047)T-20",
"KDT = KD20 / (1.047)T-20",
"KDT = KD20 (1.047)T-20",
"KDT = KD20 (1.04T)"
] | C | KDT = KD20 (1.047)T-20 where, KDT is the deoxygenation constant at temperature ‘T’ and KD20 is the deoxygenation constant at 20oC. | environmental_engineering | |
d26e193a | 2. What value does the variable a have after ALL of the code above executes?<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="c"><pre class="de1"><span class="kw4">int</span> a<span class="sy0">;</span> <span class="kw4"... | [
"1",
"2",
"3",
"unknown/undefined"
] | B | a=2 cause it has been incremented. | compiler | |
72966e3b | Correct syntax to access the static member functions from the main() function is ______________ | [
"classObject::functionName();",
"className::functionName();",
"className:classObject:functionName();",
"className.classObject:functionName();"
] | B | The syntax in option b must be followed in order to call the static functions directly from the main() function. That is a predefined syntax. Scope resolution helps to spot the correct function in the correct class. | object_oriented_programming | |
d428287c | What is the magnitude of voltage generated at emitter circuit of a simplified CE hybrid model? | [
"hre × hfe / Ib × RL",
"hre × hfe × Ib × RL",
"hre × hfe / IC × RL",
"hre × hfe × IC × RL"
] | B | The magnitude of voltage generated at emitter circuit of a common emitter (CE) amplifier can be expressed in terms of hybrid parameters in the simplified CE hybrid model. The magnitude of voltage generated is equal to hre × hfe × Ib × RL where, RL is load resistance and Ib is the base current. | electronic_devices_&_circuits | |
5ae5072d | Choose the correct statement for construction of a library subsection. | [
"The size of a particular restriction fragment on which the gene is located is not known",
"The size of the restriction fragment can be known by carrying out southern blotting",
"Another digest of the genomic DNA is carried out by a different enzyme",
"DNA fragments of different size are recovered after carry... | B | If the molecules smaller than the fragments required for making a full genomic library are used for collection, this collection is called a shelf. It is a subsection of the library. | genetic_engineering | |
778ebdd3 | Which is true for neural networks? | [
"It has set of nodes and connections",
"Each node computes it’s weighted input",
"Node could be in excited state or non-excited state",
"All of the mentioned"
] | A | Neural networks have higher computational rates than conventional computers because a lot of the operation is done in parallel. That is not the case when the neural network is simulated on a computer. The idea behind neural nets is based on the way the human brain works. Neural nets cannot be programmed, they can only ... | artificial_intelligence | |
67d31d91 | The specific molecules that bind to receptors are _____________ | [
"Ligands",
"Co-enzymes",
"Substrates",
"Enzymes"
] | D | Receptors present on the plasma membrane face outwards in the extracellular environment and are responsible for responding to signals received by cell. These signals are received in the form of small molecules that bind to the receptor consequently generating an orchestration of intracellular action. | cell_biology | |
6acb9490 | What do we call string in python 2? | [
"Str",
"Unicode",
"Strs",
"Unicades"
] | A | If we send a text string the method will raise TypeError. TypeError will show if we try to send text string instead of bytes. | iot | |
579f158f | The function of bearing stiffener is to | [
"improve buckling strength of web",
"preclude any crushing of web",
"restrain against torsional effects",
"increase buckling resistance of web"
] | B | The function of bearing stiffener is to preclude any crushing of web at locations of heavy concentrated loads. Thus, they transfer heavy reactions or concentrated loads to the full depth of web. They are placed in pairs on the web of plate girders at unframed girder ends and where required for concentrated loads. | design_of_steel_structures | |
6d4df243 | 3. Find the internal field when the applied field is 12 units, molecular field constant is 0.1 units and the magnetization is 74 units. | [
"86",
"62",
"752",
"19.4"
] | D | From Curie law, the internal field of a magnetic material is given by H = Ho + χ M, where χ is the molecular field constant. Put χ = 0.1, M = 74 and Ho = 12, we get H = 12 + (0.1)74 = 19.4 units. | electromagnetic_theory | |
874a456c | If we compile the sam.c file with the command “gcc -o sam sam.c”, then the executable file will be? | [
"a.out",
"sam",
"sam.out",
"None of the mentioned"
] | B | This is how the GCC is designed to take names of executable files. | compiler | |
eea031df | In linked allocation _____________ | [
"each file must occupy a set of contiguous blocks on the disk",
"each file is a linked list of disk blocks",
"all the pointers to scattered blocks are placed together in one location",
"none of the mentioned"
] | B | None. | operating_system | |
10f8e0b6 | A low angle grain boundary formed by an array of edge dislocations is referred to as ______ boundary. | [
"Tilt",
"Twin",
"Twist",
"Sub"
] | A | The array of edge dislocations forms tilt between adjacent grains. This grain boundary is referred to as tilt boundary. | mechanical_behaviour | |
1b30b4ff | Which of the following gives rise to methionine, threonine, and lysine? | [
"Pyruvate",
"Glutamate",
"Aspartate",
"Serine"
] | C | Pyruvate gives rise to valine and isoleucine. Glutamate gives rise to glutamine, arginine, and proline. Serine gives rise to glycine and cysteine. | biochemistry | |
cda79d74 | Under which condition, is the Cunningham correction factor applicable for very small particles? | [
"When particle size is far greater than the gas mean free path",
"When particle size is far lesser than the gas mean free path",
"When particle size becomes comparable to the gas mean free path",
"Cunningham factor is applicable for small particles under all conditions"
] | B | CD refers to the drag coefficient, a dimensionless quantity that represents the resistance of an object in a fluid environment such air or water. The value of CD corresponding to a Reynold’s number between 5 and 1000 is 0.4. This is also a very helpful tip that can be used in problems. | mechanical_operations | |
93f77175 | If a hammer is raised by steam and allowed to fall by gravity on top of the pile, it is called as________ | [
"Diesel hammer",
"Vibratory hammer",
"Single acting hammer",
"Drop hammer"
] | C | If a hammer is raised by steam, compressed air or internal combustion, but is allowed to fall by gravity alone, it is called as single acting hammer. The energy of such hammer is equal to the weight of the ram times the height of the fall. | foundation_engineering | |
a3f67bf7 | The body is sometimes acted by two or three force members and we need to find the Mohr‘s circle for inertia for the same. The difference between the two and the three force members is: | [
"The former is collinear and the latter is parallel",
"The former is parallel and the latter is perpendicular",
"The former is perpendicular and the latter is collinear",
"The former is acting on two points in the body while the latter is on three points"
] | D | The definition of the two force member only defines that the forces are being acted on the two points on the body. So does is the definition of the three forces members. The points of action of the three forces are three. | engineering_mechanics | |
4035a79b | 10. Find the electric field intensity of transformer oil (εr = 2 approx) with density 1/4π (in 109 units) | [
"2.5",
"3.5",
"4.5",
"5.5"
] | C | D = εE. E = (1/4π)/(2Xεo) = 4.5 X 109 units. | electromagnetic_theory | |
447da8a9 | y<-2 involves region are____________ | [
"above dotted line y=-2",
"below dotted line y=-2",
"above complete line y=-2",
"below complete line y=-2"
] | D | 2x+y>5
(1,1) x=1 and y=1 gives 2(1)+1>5 =>3>5 which is false.
(1,2) x=1 and y=2 gives 2(1)+2>5 =>4>5 which is false.
(2,1) x=2 and y=1 gives 2(2)+1>5 =>5>5 which is false.
(2,2) x=2 and y=2 gives 2(2)+2>5 =>6>5 which is true. | mathematics_mcqs_-_class_11.json | |
5cb4e524 | f(x) = ln(10-x2), x=[-3,3], find the point in interval [-3,3] where slope of a tangent is zero, | [
"0",
"Rolle’s Theorem is not applied, because function is not continuous in interval [-3,3]",
"Rolle’s Theorem is not applied, because function is not differential in interval (-3,3)",
"2"
] | B | Continuity Check.
\(\lim_{x\rightarrowπ/4-}f(x) = \lim_{x\rightarrowπ/4-}Tan(x) = 1\)
\(\lim_{x\rightarrowπ/4+}f(x) = \lim_{x\rightarrowπ/4+}Cos(x) = \frac{1}{\sqrt{2}}\)
\(\lim_{x\rightarrowπ/4-}f(x) ≠ \lim_{x\rightarrowπ/4+}f(x)\)
Hence function is discontinuous in interval (0, π⁄2).
Hence Rolle’s theorem cannot b... | engineering_mathematics | |
f1729aeb | The mode that is programmed using “end interrupt/error mode set command” is | [
"scanned keyboard special error mode",
"scanned keyboard with N-key rollover",
"scanned keyboard mode with 2 key lockout",
"sensor matrix mode"
] | A | The scanned keyboard special error mode is programmed using end interrupt/error mode set command. This mode is valid only under the N-key rollover mode. | microprocessor | |
6336abc0 | In a reactor two stream are entering, one with H2 at 10 atm and 27oC, and another with O2 at 10 atm and 0oC, producing H2O at 10 atm and 23oC, what are the total degrees of freedom? | [
"10",
"14",
"16",
"19"
] | B | Total species = 1 + 1 + 1 = 3, total stream flows = 3, stream pressures = 3, stream temperatures = 3, heat released = 1, and extent of reaction = 1, => degrees of freedom = 3 + 3 + 3 + 3 + 1 + 1 = 14. | basic_chemical_engineering | |
2d799e8f | Which of the following is the strongest acid? | [
"CH3COOH",
"BrCH2COOH",
"ClCH2COOH",
"FCH2COOH"
] | D | Presence of -I effect fluorine atom increases the acidic nature by withdrawing electrons.
F−CH2−COOH > Cl−CH2−COOH > Br−CH2−COOH > CH3COOH. | organic_chemistry | |
89a2ef63 | The Laplace transform of the function 6e5tcos(2t) – e7t is ______________ | [
"\\(\\frac{6(s-5)}{(s-5)^2+4} – \\frac{1}{s-7}\\)",
"\\(\\frac{6(s-5)}{(s-5)^2+4} + \\frac{1}{s-7}\\)",
"\\(\\frac{6(s+5)}{(s+5)^2+4} – \\frac{1}{s-7}\\)",
"\\(\\frac{6(s+5)}{(s+5)^2+4} + \\frac{1}{s-7}\\)"
] | A | L {6e5tcos(2t) – e7t} = \(\frac{6(s-5)}{(s-5)^2+4} – \frac{1}{s-7}\). | network_theory | |
76dc3081 | Evaluation of 4*5+3/2-9 in prefix notation. | [
"*45-/32+9",
"*+453/-29",
"-+*45/329",
"*+/45932"
] | C | The expression=4*5+3/2-9
={(4*5)+(3/2)-9}
={(*45)+(/32)-9}
={+(*45)(/32)}-9
=-{+(*45)(/32)9
So the output is; -+*45/329. | discrete_mathematics | |
4acbbcd2 | Which of the following hydrolyzes successive amino-terminal residues from short peptides? | [
"Aminopeptidase",
"Enteropeptidase",
"Glutamine synthase",
"Glutamate dehydrogenase"
] | A | Aminopeptidase hydrolyzes successive amino-terminal residues from short peptides. | biochemistry | |
6e95a407 | How to overcome the limitation of binary weighted resistor type DAC? | [
"Using R-2R ladder type DAC",
"Multiplying DACs",
"Using monolithic DAC",
"Using hybrid DAC"
] | A | Usage wide range of resistors is the limitation of binary weighted resistor type DAC, this can be avoided by using R-2R ladder type DAC Where only two value of resistor are required. | linear_integrated_circuits | |
00484f80 | Which is the meso isomer of butane-1,2,3,4-tetraol? | [
"<img src=\"https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-meso-structures-q10a.png\" alt=\"organic-chemistry-questions-answers-meso-structures-q10a\" width=\"164\" height=\"82\" class=\"alignnone size-full wp-image-225029\" />",
"<img src=\"https://www.sanfoundry.com/wp... | A | The given compound is superimposable on its mirror image, so it is achiral. Achiral molecules which have chirality centers are called meso compounds. Meso compounds are possible if two (or more) chirality centers in a molecule have the same set of four substituents. Examination of molecular models might help you when e... | organic_chemistry | |
04635b18 | What is amount of H2O in the product? | [
"25 Kg",
"50 Kg",
"75 Kg",
"100 Kg"
] | B | CH3OH in the product = 100*0.5 = 500 Kg. | chemical_process_calculation | |
b39b87e4 | The signal that only pulls the microcontroller(8051) out of the power down mode is | [
"CLEAR",
"LEAVE",
"RESET",
"EXIT"
] | C | Only Reset signal can pull 8051 out of the power down mode. | microprocessor | |
c4398d49 | Which of the following is NOT a plant hormone? | [
"Corticosteroid",
"Brassinosteroid",
"Polyamines",
"Salicylic acid"
] | A | During the growth, cells in plant increase in the volume and become highly vacuolated, this is basically due to the turgor pressure. Plant growth is defined as an irreversible increase in size or volume. | life_sciences | |
20593e6f | Clapp oscillator is an ___________ | [
"LC oscillator",
"RC oscillator",
"RL oscillator",
"Crystal oscillator"
] | A | Clapp oscillator is a colpitts oscillator which has an extra capacitor series with an inductor. Hence it is an LC oscillator, with 3 capacitors and one single inductor to set its frequency, and the clap circuit is often used as a variable frequency oscillator, by making one capacitor variable. | analog_circuits | |
2a4dae4c | The main difference between a register and a counter is ___________ | [
"A register has no specific sequence of states",
"A counter has no specific sequence of states",
"A register has capability to store one bit of information but counter has n-bit",
"A register counts data"
] | A | The main difference between a register and a counter is that a register has no specific sequence of states except in certain specialised applications. | digital_circuits | |
c25ab109 | Which of the following effects can be caused by decrease in temperature? | [
"Increase in MOSFET current",
"Increase in BJT current",
"Decrease in MOSFET current",
"Decrease in BJT current"
] | C | MOSFET has positive temperature coefficient and drain resistance increase with decrease in temperature .Hence current decreases with decrease in temperature. | electronic_devices_&_circuits | |
6b7e0d11 | Which of the following is a procedure for acquiring the necessary locks for a transaction where all necessary locks are acquired before any are released? | [
"Record controller",
"Exclusive lock",
"Authorization rule",
"Two phase lock"
] | D | Two-phase lock is a procedure for acquiring the necessary locks for a transaction where all necessary locks are acquired before any are released. | database_management | |
da0c70db | The fragment inserted in the place of the central portion of the genome is known as __________ | [
"insertion fragment",
"substitution fragment",
"stuffer fragment",
"displacement fragment"
] | C | The fragment inserted in the place of the central portion of the genome is known as the stuffer fragment. It is generated by doing partial digestion an enzyme having a 4bp long recognition site. | genetic_engineering | |
3a408241 | 8. Suppose relation R(A,B) currently has tuples {(1,2), (1,3), (3,4)} and relation S(B,C) currently has {(2,5), (4,6), (7,8)}. Then the number of tuples in the result of the SQL query:<div class="hk1_style-wrap4"><div class="hk1_style-wrap3"><div class="hk1_style-wrap2"><div class="hk1_style-wrap"><div class="hk1_style... | [
"2",
"4",
"6",
"None of the mentioned"
] | C | A superkey is a combination of columns that uniquely identifies any row within a relational database management system (RDBMS) table. | database_management | |
0aa82661 | Which of the following catalyzes the cutting of PIP2 into 2 moles of IP3 and diacylglycerol in cell signaling? | [
"Phosphokinase C",
"Phospholipase C",
"Lipokinase",
"Phosphodiesterase C"
] | B | PLC also named as phospholipase grabs onto PIP2 and cuts it into diacylglycerol and IP3. | biochemistry | |
9124eaff | The copy module uses the ___________________ protocol for shallow and deep copy. | [
"pickle",
"marshal",
"shelve",
"copyreg"
] | A | The module cPickle is a comparatively faster implementation of the pickle module. | python | |
e8c6871d | Elastic strain energy is proportional to ____________ | [
"(a)1/2",
"a",
"a2",
"a3"
] | C | The elastic strain energy (Ue) for unit volume is given by following relation:
Ue = πσ2a2/E
Here, E is Young’s modulus, σ is applied tensile stress, 2a is crack length. | mechanical_behaviour | |
a0f812f4 | Beta testing is done at | [
"User’s end",
"Developer’s end",
"User’s & Developer’s end",
"None of the mentioned"
] | A | In beta testing the user evaluates the product and gives his feedback. | software_engineering | |
95a2802e | If shaft diameter is 60mm, how many bolts are recommended for rigid flange coupling? | [
"2",
"3",
"4",
"5"
] | B | L=3.5d. | machine_design | |
43867aaf | There exists two way to infer using semantic networks. | [
"1) Intersection Search",
"2) Inheritance Search",
"True",
"False"
] | A | None. | artificial_intelligence | |
62a48aec | A transaction commits as soon as its commit log record is written to stable storage at the primary and the backup site. This is | [
"One Safe",
"Two Safe",
"Two-very Safe",
"Very Safe"
] | C | The problem with this scheme is that transaction processing cannot proceed if either the primary or the backup site is down. | database_management | |
6ae1e1f3 | If there are N nodes in a circuit, then the number of nodal equations that can be formed are? | [
"N+1",
"N",
"N-1",
"N-2"
] | C | If there are N nodes in a circuit, then the number of nodal equations that can be formed are N-1. Number of nodal equations = N-1. | network_theory | |
484ba7d6 | 3. An electric motor is developing 10KW at a speed of 900rpm. The torque available at the shaft is: | [
"106 N-m",
"66 N-m",
"1600 N-m",
"90 N-m"
] | A | The formula of the Torque =9.544*Power/speed in rpm and unit is N-m and by this the value of the torque can be calculated. | control_systems | |
e4104c78 | The mean of hypergeometric distribution is _____________ | [
"n*k / N-1",
"n*k-1 / N",
"n-1*k / N",
"n*k / N"
] | D | The mean of hypergeometric distribution is given as
E(X) = n*k /N where,
n is the number of trials, k is the number of success and N is the sample size. | probability_and_statistics | |
4b058468 | Of the following given options, which one of the following is a correct option that provides an optimal solution for 4-queens problem? | [
"(3,1,4,2)",
"(2,3,1,4)",
"(4,3,2,1)",
"(4,2,3,1)"
] | D | Of the following given approaches, n-queens problem can be solved using backtracking. It can also be solved using branch and bound. | data_structures_&_algorithms_ii | |
9ed7a4b8 | Assume that the SLR parser for a grammar G has n1 states and the LALR parser for G has n2 states. | [
"n1 is necessarily less than n2",
"n1 is necessarily equal to n2",
"n1 is necessarily greater than n2",
"none of the mentioned"
] | B | SLR parser has less range of context free languages than LALR but still both n1 & n2 are same for SLR & LALR respectively. | compiler | |
610b1472 | What is the change in slope at point B? | [
"AR . XR/LR",
"AL . XL/IL",
"0",
"AR . XR/E . LR"
] | C | We will be discussing this method in detail subsequently. | structural_analysis | |
dd96f3f9 | A register file holds __________ | [
"A large number of word of information",
"A small number of word of information",
"A large number of programs",
"A modest number of words of information"
] | D | A register file is different from a simple register because of capability to hold a modest number of words of information. A word is a group of 16-bits or 2-bytes. | digital_circuits | |
103f381c | What can be used to input a string with blank space? | [
"inline",
"getline",
"putline",
"setline"
] | B | If a user wants to input a sentence with blank spaces, then he may use the function getline. | c++ | |
8c5c972e | Heavy lifting work is often accomplished by shifting fluids in big machines. The power system of such machines can be described as | [
"Reciprocating",
"Pneumatic",
"Hydraulic",
"Hybrid"
] | C | The power system of heavy and big machines can be described by hydraulic systems and heavy lifting work is often accomplished by shifting fluids in big machines. | control_systems |
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