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 |
|---|---|---|---|---|---|---|
67a493c5 | L and ~L are recursive enumerable then L is? | [
"Regular",
"Context free",
"Context sensitive",
"Recursive"
] | D | If L is recursive enumerable and its complement too if and only if L is recursive. | compiler | |
888ec4d4 | How an alternate set of the register can be identified in Z80? | [
"‘Suffix",
"‘Prefix",
",suffix",
",prefix"
] | A | In order to identify the main register and alternate register ‘ is used in the suffix. | embedded_systems | |
4c612051 | An LR-parser can detect a syntactic error as soon as __________ | [
"The parsing starts",
"It is possible to do so a left-to-right scan of the input",
"It is possible to do so a right-to-left scan of the input",
"Parsing ends"
] | B | Error is found when it the input string is scanned. | compiler | |
a3501793 | In nitrogen production which cycle is used Joule-Thomson cooling principle? | [
"Claude cycle",
"Cascade cycle",
"Elliott cycle",
"Linde cycle"
] | D | In Linde cycle refrigeration is used by joule thomson cooling in order to increase the temperature drop. In Claude cycle refrigeration is obtained by adiabatic expansion of compressed air in a turbo -reciprocating or rotating expansion machine. | chemical_technology | |
8efc87e7 | Which of the following statement explains the concept of energy cascading? | [
"the fuel should first be used for high temperature applications",
"the heat rejected from these applications can then be cascaded to applications at lower temperatures",
"it ensures more efficient energy utilization",
"all of the mentioned"
] | D | These are the main features of energy cascading. | thermodynamics | |
68da192d | Pick the odd one out | [
"Open feed water heaters",
"Jet condensers",
"De-super heaters",
"Surface condensers"
] | D | In surface condenser, the heat transfer occurs between the fluid streams without mixing or physical contact with each other. | heat_transfer | |
a704744e | Which operator is overloaded by __lg__()? | [
"<",
">",
"!=",
"none of the mentioned"
] | D | __lg__() is invalid. | python | |
c7c0bcdf | The coil under going commutation lies along _____ while the coil getting short circuited lies along ____ for a practical dc machine. | [
"gna, mna",
"mna, gna",
"gna, gna",
"mna, mna"
] | A | Since the time taken is more than the prescribed time limit for the commutation, it is under commutation. | electrical_machines | |
5c5a0589 | Which of these data models is an extension of the relational data model? | [
"Object-oriented data model",
"Object-relational data model",
"Semi structured data model",
"None of the mentioned"
] | B | All the data are stored in form of memory in the disk. | database_management | |
524ca4ac | Which of the following about mRNA stability is not correct? | [
"Regulation of mRNA stability is a way of regulating gene expression",
"Prokaryotic mRNAs have a half-life of only a few minutes",
"Histone mRNAs have especially long poly-A tails and are stable",
"It is thought that poly-A tails stabilize eukaryotic mRNAs"
] | C | Histone mRNAs lack poly-A tails so they are unstable. | biochemistry | |
f9c5d958 | It was needed that to isolate dc noise coming from the transmitted signal, to attain the same which machine can be used without suffering significant loss? | [
"transformer",
"dc machine",
"induction machine",
"stepper motor"
] | A | We should use transformer to achive the isolation of dc. | electrical_machines | |
6807c204 | The unit that is used to implement the multiple branch prediction in Pentium-Pro is | [
"control unit",
"bus interface unit",
"branch target buffer",
"branch instruction register"
] | C | The processor uses an associative memory called branch target buffer for implementing the algorithm, multiple branch prediction. | microprocessor | |
cc48e04c | What is the process of release of sperms from Sertoli cells called? | [
"Spermiation",
"Spermatogenesis",
"Spermiogenesis",
"Meiosis"
] | A | Spermiation refers to the release of sperms from Sertoli cells. Spermatogenesis is the process of the production of sperms from spermatogonia. Spermiogenesis is the process of conversion of spermatids to mature sperms. | biology_mcqs_-_class_12.json | |
036f2707 | __________ could potentially lead to large audit records. | [
"DATABASE_OBJECT_ACCESS_GROUP",
"DATABASE_MIRRORING_LOGIN_GROUP",
"DATABASE_OBJECT_OWNERSHIP_CHANGE_GROUP",
"DATABASE_OBJECT_PERMISSION_CHANGE_GROUP"
] | A | DATABASE_OBJECT_ACCESS_GROUP event is raised for any access to any database. | sql_server | |
638236b0 | If the crosshead velocity of the UTM machine is v, the strain rate is given as ϒ, and the initial length of the sample is L, find the strain rate of the specimen in terms of crosshead velocity and sample length? | [
"v",
"v/L",
"L/v",
"v*L"
] | A | If the strain rate is high, the meager amount of carbon atoms is also capable of pinning down the dislocation and cause fluctuation in the flow curve. | mechanical_metallurgy | |
2644fc07 | γ in Weibull distribution graph indicates _________ | [
"earliest time of failure",
"maximum time of failure",
"shape of the graph",
"scale of the graph"
] | B | The mean time of failure is given by the equation E(X) = Γ(1/ β + 1). This represents the time expected for a device to fail. | probability_and_statistics | |
590cb705 | For a transformer with primary turns 400, secondary turns 100, if 20A current is flowing through primary, we will get ___________ | [
"80A at secondary",
"5A at secondary",
"800A at secondary",
"40A at secondary"
] | B | Voltage in the primary of the transformer will get modified in the transformer secondary, according to the number of turns. Thus, turns are modified with 4 times the primary, we’ll get 4 times higher voltage at secondary. | transformers | |
a3a72205 | In the constant choke carburetor, the air and fuel flow areas are always maintained to be ___________ | [
"constant",
"variable",
"linear",
"none of the mentioned"
] | A | Generally, in the constant choke carburetor, the air and fuel flow areas are always maintained to be constant. | ic_engine | |
ef2cdc16 | Two involute gears have a pressure angle of 20°. The gear ratio is given to be 3. The module is 5 mm and the value of addendum is equal to 1 module. Determine the minimum number of teeth on each wheel to avoid interference, if the pinion rotates at 100 rpm. | [
"T = 51, t= 17",
"T = 45, t =15",
"T = 60, t =20",
"T = 54, t = 18"
] | D | Since, aw max = mT((1+(1/G)((1/G)+2)sin2φ)0.5 – 1)/2 is the maximum value of addendum for the wheel, similarly, for pinion, the maximum value of addendum is given by mt((1+G(G+2)sin2 φ)0.5-1)/2. If the maximum value of addendum is less than the actual value of addendum, then interference occurs. | theory_of_machines | |
5a7894f1 | A = {x: x ≠ x} represents? | [
"{0]",
"{1}",
"{}",
"{x}"
] | C | That is a fact. | compiler | |
13fcee78 | Calculate sum of divisors of n = 1900. | [
"6530",
"5346",
"3387",
"4123"
] | D | The prime factorization of 1800 is 19 * 22 * 52 and
S(22) = 1 + 2 + 4 = 7
S(52) = 1 + 5 + 25 = 31
Therefore, S(1800) = 19 * 7 * 31 = 4123. | discrete_mathematics | |
a9c1c936 | 3. How can the partition coefficient be increased? | [
"By increasing the feed",
"By decreasing the feed",
"By changing pH",
"By increasing chemical potential"
] | C | By changing the pH the chemical potential can be reduced hence the partition coefficient can be increased. | separation_processes | |
ded1ef08 | Which is the main building block of cilia? | [
"Tubulin",
"Nexin",
"Dyenin",
"Actin"
] | A | Tubulin proteins are the main building blocks of cilia in prokaryotic organisms. Dyenin forms bridges between neighbouring microtubule doublets in structure of cilia. Nexin is present between microtubule doublets and prevent them to slide over one another. | cell_biology | |
f1b081cb | The hex representation for F is _______________ | [
"C6",
"C5",
"D6",
"D1"
] | A | The character A is represented by the digit 1100 and the zone 0001. The hex representation for the same is C1. Similarly for B it is C2 and so on. | computer_fundamentals | |
522b8c33 | What is the equation of the load line in the linear analysis of a transistor? | [
"VCE = VCC + IB RL",
"VCE = VCC – IB RL",
"VCE = VCC + IC RL",
"VCE = VCC – IC RL"
] | D | Let the collector voltage supply be VCC in series with a load resistor RL. A straight line superimposed on the collector characteristic will provide us with the load line. The equation for the load line is VCE = VCC – IC RL. | electronic_devices_&_circuits | |
4b79e763 | __________ security consultants uses database security monitoring & scanning tools to maintain security to different data residing in the database / servers / cloud. | [
"Database",
"Network",
"System",
"Hardware"
] | A | Database Security consultants are specific individuals hired in order to monitor and scan the database systems and keep them secured from unwanted threats and attacks by giving access to restricted users, blocking unwanted files, multi-factor access control etc. | cyber_security | |
6e4b8df2 | The last statement of the source program should be _______ | [
"Stop",
"Return",
"OP",
"End"
] | D | This enables the processor to load some other process. | computer_architecture | |
f0913fb0 | Which of the following is a humanized antibody? | [
"Doxorubicin",
"Sulforaphane",
"Vimentin",
"Herceptin"
] | B | The best studied cases of spontaneous remissions in cancer were recorded in the 1800s by a New York physician William Coley. He developed a bacterial extract which when injected could stimulate a person’s immunity. | cell_biology | |
13f09380 | Polar moment of inertia is denoted by ___________ | [
"G",
"J",
"K",
"M"
] | D | Where straight anchorage length cannot be provided due to lack of space (at supports) In this situation, to improve the anchorage of bars many times the standard bends are provided in deformed bars. | strength_of_materials | |
6a4db25a | Name the principle on which pedigree analysis work? | [
"Regression",
"Probability",
"Random mating",
"ANOVA"
] | A | Pedigree is a record of inheritance of certain genetic traits for two or more than two generations presenting in the form of a diagram. | life_sciences | |
c14b4e29 | What is the equation of entropy? | [
"Ratio of reversible transfer of heat to absolute temperature",
"Ratio of absolute temperature to reversible heat transfer",
"Ratio of adiabatic heat to macroscopic variables",
"Ratio of macroscopic variables to adiabatic heat"
] | A | This equation was defined by Rudolf Clausius, who defined entropy as a ratio of reversible heat transfer to that of its absolute temperature. This definition is also called the macroscopic definition of entropy. | fluid_mechanics | |
586c3202 | Which of the following effects can be used to produce ultrasonic waves? | [
"Magnetostriction effect",
"Doppler Effect",
"Magnetic effect",
"Sound effect"
] | A | When an alternating magnetic field is applied to a ferromagnetic material, then the rod is thrown into vibrations, thereby producing ultrasonic waves at resonance. Therefore ultrasonic waves can be produced using magnetostriction effect. | engineering_physics_i | |
fb131b27 | Three different objects of masses m1, m2 and m3 are allowed to fall from rest and from the same point O along three different frictionless paths. The speeds of the three different objects on reaching the ground will be in the ratio of ___________ | [
"m1:m2:m3",
"1:1:1",
"1/m1:1/m2:1/m3",
"m1:2m2:3m3"
] | B | v2-02=2gh
v=√2gh
This velocity does not depend on mass. | engineering_physics_i | |
0229be68 | The oxidized form of starch is __________ | [
"Dextrin",
"Dialdehyde starch",
"Starch phosphate",
"Starch sulfate"
] | C | Ammonia addition or rapid cooling using water in plate coil exchanger stops the de polymerization reaction which is responsible for dextrin production. | chemical_technology | |
5779d42d | For which of the following does the centre of mass lie outside the body? | [
"Pen",
"Dice",
"Rectangular tile",
"Bangle"
] | B | The centre of mass for an object need not necessarily lie inside the object. A ring or a C-section element are classic examples for this. | physics_mcqs_-_class_11.json | |
62713e0f | In two-stage dryer equipment, what is the temperature of the inlet gases on each stage from bottom? | [
"32 and 200 degrees",
"200 and 32 degrees",
"16 and 100 degrees",
"100 and 16 degrees"
] | B | It depends on the material we use, since the temperature is already mentioned it would have been tested before applying it. | fluidization_engineering | |
ab305163 | How are automatic variables different from the instance variables? | [
"Automatic variables are initialized automatically but instances are not",
"Automatic variables are given zero values initially and not instances",
"Instance variables have to be initialized explicitly and automatic implicitly",
"Instance variables are initialized implicitly while automatic are not"
] | D | The automatic variables have to be initialized explicitly. But in case of instances, those are initialized automatically during execution of the program. The conventions are mandatory. | object_oriented_programming | |
9b6582a7 | Coals which become soft, plastic and fuse together to form large coherent masses are called ______ | [
"caking coals",
"non-caking coals",
"non-coking coals",
"pulverized coal"
] | B | Coking coals are blended with non-caking coals since it helps in increasing the rate of carbonization and producing good quality coke from non-caking coal. | engineering_chemistry_ii | |
4db3a78b | 3. Calculate the ratio of sine of incident angle to the sine of reflected angle when the refractive indices of medium 1 and 2 are given as 2.33 and 1.66 respectively. | [
"0.71",
"1.4",
"2",
"3.99"
] | A | The Snell law is given by N1 sin θi = N2 sin θt. To get sin θi/sin θt, the ratio is N2/N1. On substituting for N1 = 2.33 and N2 = 1.66, we get 1.66/2.33 = 0.71. | electromagnetic_theory | |
302e7482 | What will be the internal force generated at hinge D due to the above loading? | [
"5",
"10",
"15",
"20"
] | B | We can separate the part from point B to D. Now, we have internal load at B so, we can balance moment about point C and find out the force at point D. | structural_analysis | |
11a10e92 | The numbers between 1 and 520, including both, are divisible by 2 or 6 is _______ | [
"349",
"54",
"213",
"303"
] | D | We add the number of numbers that are divisible by 2 and 6 and subtract the numbers which are divisible by 12. Hence, the required probability is
\(\frac{520}{2} + \frac{520}{6} – \frac{520}{12}\) = 303.3 = 303(Approximately). | discrete_mathematics | |
5d784a4f | The principal plane chosen in an orthographic view of a machine drawing is/are ______ | [
"Horizontal, vertical and side plane",
"Horizontal and side plane only",
"Vertical and horizontal plane only",
"Only vertical plane"
] | C | Since an orthographic view is drawn by projecting the faces of an object on the required plane, thus plane of projection is parallel to the picture plane and lie in the picture plane. Since pictorial view are always drown with more than one face at one time thus cannot have picture plane as the plane of projection. | machine_drawing | |
6ed11782 | If f(x,y) is an image function of two variables, then the first order derivative of a one dimensional function, f(x) is: | [
"f(x+1)-f(x)",
"f(x)-f(x+1)",
"f(x-1)-f(x+1)",
"f(x)+f(x-1)"
] | C | The derivations of digital functions are defined in terms of differences. The definition we use for first derivative should be zero in flat segments, nonzero at the onset of a gray level step or ramp and nonzero along the ramps. | digital_image_processing | |
67d968f2 | If the minimum stress developed is negative, then the nature of stress is ___________ | [
"Shearing",
"Tensile",
"Bending",
"Compressive"
] | B | If the minimum stress developed at the base of the dam section is negative, then the respective nature of the stress will be in tensile condition. | strength_of_materials | |
75b3acce | If all the component statements cannot be true simultaneously then ‘Or’ is said to be __________ | [
"Inclusive Or",
"Exclusive Or",
"Inclusive And",
"Exclusive And"
] | B | If all the component statements can be true simultaneously then ‘Or’ is said to be ‘Exclusive Or’. | mathematics_mcqs_-_class_11.json | |
9391a521 | Let G be a finite group with two sub groups M & N such that |M|=56 and |N|=123. Determine the value of |M⋂N|. | [
"1",
"56",
"14",
"78"
] | A | We know that gcd(56, 123)=1. So, the value of |M⋂N|=1. | discrete_mathematics | |
4cd16b05 | The column used for differential distillation is_______________ | [
"Still",
"Differential column",
"Batch column",
"None of the mentioned"
] | B | In flash vaporization, only a small portion of liquid gets flashed. | mass_transfer | |
0061f38b | In which of the following process, do we remove iron oxide sludge in reduction of nitro-aniline? | [
"Reduction process",
"Filtration",
"Dehydration",
"Vacuum distillation"
] | B | Filtration of the reduction batch to remove iron oxide sludge. | unit_processes | |
686ab68b | 10. The transmission capacity of a line at 50 Hz frequency as compared to that at 60 Hz is ______ | [
"higher",
"lower",
"same",
"can’t be decided"
] | A | Characteristic impedance of a transmission line will depend on conductor configuration. | power_systems | |
081d85d5 | Which of the following is a three-level laser? | [
"ND: YAG",
"Ruby",
"He-Ne",
"Semiconductor laser"
] | B | Ruby laser is a three-level laser. Ruby crystal is a crystal of Al2O3 with some Al3+ ions replaced by Cr3+ ions. The energy levels of Cr3+ are responsible for lasing action. | engineering_physics_ii | |
23904d20 | 29 input circuit will have total of ____________ | [
"32 entries",
"128 entries",
"256 entries",
"512 entries"
] | D | 29 input circuit would have 512(2*2*2*2*2*2*2*2*2 = 512) entries. | digital_circuits | |
d69f74f9 | In a paged memory, the page hit ratio is 0.35. The required to access a page in secondary memory is equal to 100 ns. The time required to access a page in primary memory is 10 ns. The average time required to access a page is? | [
"3.0 ns",
"68.0 ns",
"68.5 ns",
"78.5 ns"
] | C | None. | operating_system | |
ee82e06c | What are the main applications of lignite? | [
"domestic fuel",
"railway engines",
"used for steam generation in thermal power plant",
"in vehicles"
] | C | In thermal power plants steam is produced using lignite. It is also used to produce the producer gas. The calorific value of lignite is 6500-7100. | applied_chemistry | |
2e81286c | If there are 3 classes. Class C is derived from class B and B is derived from A, Which class destructor will be called at last if object of C is destroyed. | [
"A",
"B",
"C",
"All together"
] | A | The destructors are called in the reverse order of the constructors being called. Hence in multilevel inheritance, the constructors are created from parent to child, which leads to destruction from child to parent. Hence class A destructor will be called at last. | object_oriented_programming | |
a48a279e | Carryover Moment is defined as ______ | [
"The moment applied at one end to cause unit slope at the support",
"The additional moment applied at one end to completely resist the rotation caused due to external loading",
"The moment developed or induced at one end due to a moment at another end",
"The moment applied at one end to cause unit slope at an... | B | Moment Distribution method developed by Hardy Cross to analyze the indeterminate structures like beams and rigid jointed frame with internal hinges also. | structural_analysis | |
e8881d56 | The value of β is given by the expression | [
"IC/IB",
"IC/IE",
"IE/IC",
"IE/IB"
] | A | Collector current by the base current is beta, its value is in the range 50 to 300. | power_electronics | |
dba9e495 | A pure ALOHA network transmits 200-bit frames on a shared channel of 200 kbps. What is the throughput if the system (all stations together) produces 1000 frames per second? | [
"150 frames",
"80 frames",
"135 frames",
"96 frames"
] | C | Frame transmission time
Tfr= 200/200 kbps or 1 ms.
If the system creates 1000 frames per second, or 1 frame
per millisecond, then G = 1
S = G × e−2G = 0.135 (13.5 percent)
This means that,
Throughput =1000 × 0.135 = 135 frames. | cryptograph_&_network_security | |
c42b2428 | Which of the following is a two-dimensional array? | [
"array array[20][20]",
"int array[20][20]",
"int array[20, 20]",
"char array[20]"
] | B | Double dimensional arrays are declared in this format. | compiler | |
bd260375 | What is the region of convergence of Secant Method? | [
"1.5",
"1.26",
"1.62",
"1.66"
] | C | The region of convergence of Secant Method is 1.62. It converges faster than Bisection method. | numerical_methods | |
fe7b8def | Which of the following is a generic structure that is extended to create a more specific subsystem or application? | [
"Software reuse",
"Object-oriented programming language",
"Framework",
"None of the mentioned"
] | C | NET Framework (pronounced dot net) is a software framework developed by Microsoft that runs primarily on Microsoft Windows. | software_engineering | |
842bc5ac | What causes an increase in fatigue strength of steel? | [
"Vacancies",
"Micro cracking",
"Bridging",
"Strain ageing effect"
] | D | C in steel increases maximum fatigue strength. It is because of solid solution strengthening along with strain ageing effect. | testing_of_materials | |
269eb8ae | 9. The input to a controller is : | [
"Sensed signal",
"Error signal",
"Desired variable value",
"Signal of fixed amplitude not dependent on desired value"
] | B | The effect of noise can be reduced by the use of proportional and derivative controller in the forward path. | control_systems | |
2ec7a310 | Which option is used for the recursive functioning of chmod command? | [
"-R",
"-r",
"-l",
"-i"
] | A | The file having permission set as 000 is useless i.e. it is not readable, writable or executable. But we can delete the file using directory permissions. If the directory has write permission, we can easily add or remove a file from it. | unix | |
5400c4ad | Mark the one, which is NOT the transcription inhibitor in eukaryotes. | [
"Rifampicin",
"Acridine dye",
"Actinomycin D",
"Rho factor"
] | B | Rho independent transcription termination is also known as intrinsic terminators and about 50% of E. coli genes have these types of terminators. | life_sciences | |
36758d90 | Find the Z-transform of δ(n+3). | [
"z",
"z2",
"1",
"z3"
] | D | Given x(n) = δ(n+3)
We know that δ(n+3) = \(
\begin{cases}
1 &\text{\(n=-3\)} \\
0 &\text{otherwise} \\
\end{cases}\)
X(Z) = \(\sum\limits_{n=-\infty}^{\infty} x(n) z^{-n} = \sum\limits_{n=-\infty}^{\infty} δ(n+3) z^{-n}\) = z3. | signals_and_systems | |
b93f38a8 | A Straight cantilever of uniform area carries a udl over its entire length. If the free end of a cantilever is now prop at the level of the fixed end, the vertical force required at the prop be __________ | [
"3/4 W",
"3/8 W",
"5/8 W",
"W"
] | B | Where, total load on beam = W = wl
<img src="https://www.sanfoundry.com/wp-content/uploads/2017/12/strength-materials-questions-answers-analyse-indeterminate-beam-q12.png" alt="strength-materials-questions-answers-analyse-indeterminate-beam-q12" width="352" height="155" class="alignnone size-full wp-image-188202" srcse... | strength_of_materials | |
b9b93433 | What is H1? | [
"Heat of fusion",
"Heat of vaporization",
"Heat of sublimation",
"None of the mentioned"
] | A | T1 is the melting temperature. | chemical_process_calculation | |
2d40c2c7 | _____________ may be achieved by replacing the optical fibers with thin resistance wires. | [
"Diffraction",
"Segmentation",
"Calorimetric calibration",
"Electrical calibration"
] | B | The material absorption loss measurements check the absorption losses. It checks the impurity level in the fiber at the manufacturing stage. Thus, it is efficient than the attenuation measurement methods. | optical_communication | |
26c1616d | 8. A polar plot intersects the unit circle at a point making -45° to the negative real axis then the phase margin of the system is : | [
"-45°",
"45°",
"180°-45°",
"180°+45°"
] | B | As the angle is with the negative real axis hence the Phase margin will be 45°. | control_systems | |
13fa4c51 | in most cases, for a given loading maximum stress and deflection of an indeterminate structure are __________ than that of a determinate one. | [
"Larger",
"Smaller",
"Larger for small load",
"Smaller for larger load"
] | B | Indeterminate structure deflects lesser than a determinate one. | structural_analysis | |
671337f5 | What is rated next to the gravels as water yielding materials? | [
"Sandstone",
"Sands",
"Granite",
"Limestone"
] | B | Sand beds or loosely packed sandstones are rated next to gravels as water yielding materials. | engineering_geology | |
0ac9012d | Identify the parts of a circle. | [
"Sides",
"Chord",
"Corners",
"Faces"
] | B | Chord is one of the parts of a circle. A line segment that joins any two points on a circle is called a chord. The other parts of a circle are arc, segment, secant, radius, diameter, etc. | mathematics_mcqs_-_class_10.json | |
36e1e82e | The flash memory modules designed to replace the functioning of a hard disk is ______ | [
"RIMM",
"Flash drives",
"FIMM",
"DIMM"
] | A | This is not permitted as the previous contents of the cells will be overwritten. | computer_architecture | |
92ee2a38 | WAN stands for __________ | [
"World area network",
"Wide area network",
"Web area network",
"Web access network"
] | B | WAN is the abbreviation for Wide Area Network. This network extends over a large geographical area. These are used to connect cities, states or even countries. They can be connected through leased lines or satellites. | computer_network | |
4e21bc6e | Earth receives 2 cal/min/cm2 of solar energy. What is the value of \mid H\mid? | [
"1.98 A/m",
"2.45 A/m",
"3.75 A/m",
"4.13 A/m"
] | D | In the following case, the wave is propagating in z direction. Therefore, direction of S is in z direction.
We know, S = E X B. As E is in +ve y direction, B should be in negative x direction,
Also we know, \(\mid E\mid /\mid H\mid\) = 376.6
Therefore, \(\mid H\mid\) = 103/376.6
\( \mid H\mid\) = 2.65
Hence, H(z,t) = 2... | engineering_physics_ii | |
e0a6a35f | 10. Salt distillation can be applied to organic compounds that have little capacity of dissolving inorganic salts by using organic salts called? | [
"Hydrotopes",
"Hygrotopes",
"Hydrostattic materials",
"Hydrating materials"
] | A | Salt distillation can be applied to organic compounds that have little capacity of dissolving inorganic salts by using organic salts called Hydrotopes. Example: Alali and alkaline salts of sulphonates of toluene. | separation_processes | |
bd62841e | For a phase-shift oscillator, the gain of the amplifier stage must be greater than ________ | [
"19",
"30",
"29",
"1"
] | C | Since the resistor-capacitor combination in the RC Oscillator circuit also acts as an attenuator producing an attenuation of -1/29th ( Vo/Vi = β ) per stage, the gain of the amplifier must be sufficient to overcome the circuit losses.
Therefore, in our three stage RC network above the amplifier gain must be greater tha... | electronic_devices_&_circuits | |
15a9a4e8 | Due to ________ the bulge is created in the water level. | [
"weak attraction forces",
"Vanderwals forces",
"Wave currents",
"Strong attraction forces"
] | D | Due to strong attraction forces, the bulge is created in the water level of the ocean bodies. These turns into the turbines to generate power. | applied_chemistry | |
e55d7537 | SV 40 causes diseases in which animals? | [
"monkeys",
"rabbits",
"humans",
"cattle"
] | C | Epstein-Barr Virus (EBV) is the causative agent of infectious mononucleosis, a self-limiting disease that occurs in up to 80 percent of the population. | microbiology | |
a9c509c0 | 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">import</span> <span class="kw3">turtle</span><span class="br0">(</span... | [
"0.0",
"50.0",
"60.0",
"Error"
] | B | Although a negative speed is not possible, the code shown above does not result in an error. Hence, the answer is False. | python | |
e50bdcf8 | Mutually Exclusive events ___________ | [
"Contain all sample points",
"Contain all common sample points",
"Does not contain any sample point",
"Does not contain any common sample point"
] | D | Events are said to be mutually exclusive if they do not have any common sample point. | probability_and_statistics | |
98b3e274 | Which of the following is not a conflict in software development team? | [
"Simultaneous updates",
"Shared and common code",
"Versions",
"Graphics issues"
] | D | These are part of design, which can be handled by the design team. | software_engineering | |
02aee1f7 | The water droplets in free fall are spherical due to ___________ | [
"Gravity",
"Viscosity",
"Surface tension",
"Intermolecular attraction"
] | B | F = 6πȠRv, which is retarding viscous force is directly proportional to both R and v. | engineering_physics_i | |
8f5ea8b0 | Which one of the following is a procedural language? | [
"Domain relational calculus",
"Tuple relational calculus",
"Relational algebra",
"Query language"
] | D | The attributes name, dept and tot_cred can have same values unlike ID. | database_management | |
0728237e | 1. Electrical time-constant of an armature-controlled dc servomotor is : | [
"Equal to mechanical time-constant",
"Smaller than mechanical time-constant",
"Larger than mechanical time-constant",
"Not related to mechanical time-constant"
] | B | Electrical time constant is smaller than the mechanical time constant and hence the delay in the mechanical systems is more than the electrical systems. | control_systems | |
4246c781 | The three force system can also be in the equilibrium if_________ | [
"All the forces are parallel to each other heading towards the same direction",
"The force components cancel each other",
"The forces are very small in magnitude",
"The forces are very huge in magnitude"
] | D | The forces need to be collinear. If they are not so then the equilibrium is not possible. If they are parallel too, then it is assumed that they are meeting in the infinity. And hence the equilibrium is established between the forces. Thus the forces must be collinear. | engineering_mechanics | |
bb43cd7b | Shell ___ operator is used for running jobs in the background. | [
"$",
"#",
"|",
"&"
] | A | Since UNIX is a multitasking system, it allows the user to do more than one job at a time. But there can be only one process in the foreground and the rest of jobs have to run in the background. | unix | |
7fbf428e | Pick the term which is not a crushed material. | [
"Gouge",
"Fault breccia",
"Kaolynite",
"Mylonite"
] | C | Rubbing and mutual shearing of blocks during faulting, especially in brittle rocks, often produces typical crushed materials from the involved blocks that are useful indicators of faulting in that region. The most common and important products are: Gouge, Fault breccia and Mylonite. | engineering_geology | |
779ad71b | For producing 34 gms of NH3, how many gms of H2 is required? | [
"3",
"6",
"9",
"12"
] | B | 1 mole of C6H14 = 6 moles of CO2. | chemical_process_calculation | |
1d6d069f | What is the difference between the SIMPLE and the SIMPLER algorithms? | [
"No velocity-correction equation",
"No relaxation factor",
"Pressure is directly calculated",
"No pressure-correction equation"
] | C | The SIMPLE algorithm uses a correction factor for correcting the initial guessed pressure. But, this SIMPLER algorithm does not involve any guess and correction of pressure. It has an equation which can be solved to directly get the pressure values. | computational_fluid_dynamics | |
11e21917 | The application of a CC configured transistor is_________ | [
"voltage multiplier",
"level shifter",
"rectification",
"impedance matching"
] | D | The most important use of CC transistor is an impedance matching device. It is seldom used for amplification purposes. The current gain is same as that of CE configured transistor. | electronic_devices_&_circuits | |
025de1aa | A shell explodes into four unequal parts. Which one of the following is conserved? | [
"Potential energy",
"Kinetic energy",
"Momentum",
"Both potential and kinetic energy"
] | A | p = √2mE
For same kinetic energy, p1/p2 = √(m1/m2) = √(m/4m)=1:2. | engineering_physics_i | |
37c91fe0 | Telnet protocol is used to establish a connection to __________ | [
"TCP port number 21",
"TCP port number 22",
"TCP port number 23",
"TCP port number 25"
] | C | TCP port 21 is used for FTP, TCP port 22 is used for SSH and TCP port 25 is used for SMTP. Telnet provides access to a command line interface on a remote computer using the TCP port number 23. | computer_network | |
e7642578 | The Gas storage chamber of the digester of janata model is designed to store what percentage og daily gas? | [
"5%",
"19%",
"33%",
"58%"
] | C | The gas storage chamber is also cylindrical in shape and is the integral part of the digester and located just above the fermentation chamber. The GSC is designed to store 33% of the daily gas production from the plant. | energy_engineering | |
c0eb62c9 | A NAND based S’-R’ latch can be converted into S-R latch by placing ____________ | [
"A D latch at each of its input",
"An inverter at each of its input",
"It can never be converted",
"Both a D latch and an inverter at its input"
] | D | A NAND based S’-R’ latch can be converted into S-R latch by placing either a D latch or an inverter at its input as it’s operations will be complementary. | digital_circuits | |
f23934a9 | What will be the plain text corresponding to cipher text “SCEFJV” if gronsfeld cipher is used with key “1234”? | [
"RABBIT",
"RUSSIA",
"RANGER",
"FRIEND"
] | A | Encryption in gronsfeld cipher takes place by shifting the letters of the plain text by a number given by the numeric key. So by applying this method, we get the ciphered text to be “TCQJPWQHSA”. | data_structures_&_algorithms_ii | |
9e4c349c | In which of the following both sides of equation are multiplied by non-zero constant? | [
"Gauss Elimination Method",
"Gaussian Inconsistent procedure",
"Gaussian consistent procedure",
"Gaussian substitute procedure"
] | A | Gauss Elimination method employs both sides of equation to be multiplied by a non-zero constant. The matrix is then reduced to Upper Triangular Matrix to get values of the respective variables. | numerical_methods | |
ad83211b | DSL telcos provide which of the following services? | [
"Wired phone access",
"ISP",
"Wired phone access and ISP",
"Network routing and ISP"
] | C | DSL stands for Digital Subscriber Line and ISP stands for Internet Service Provider. In a Digital Subscriber Line system, the same company which provides phone connection is also an ISP. The internet is provided through the pre-installed telephone lines. | computer_network | |
75211bc3 | On addition of -33 and -40 using 2’s complement, we get ____________ | [
"1001110",
"-110101",
"0110001",
"-1001001"
] | D | The BCD form is written of the two given numbers, in their signed form. After which, normal binary addition is performed.
Augend is -40 and Subtrahend is -33.
Augend - 1 0 1 0 0 0 0 1 .....(a)
2’s Complement of Subtrahend: 1 1 0 1 1 0 0 1 .....(b)
... | digital_circuits | |
de2ea11f | FSK reception uses | [
"Correlation receiver",
"PLL",
"Correlation receiver & PLL",
"None of the mentioned"
] | C | Frequency shift keying uses correlation receiver and phase locked loop. | digital_communications |
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