Basic Engineering & Sciences Mock Test

Basic Engineering & Sciences MCQ Questions Answers for PGCET/ME exams . This mock test having 60 questions in each subjects, with four choices. On each click on answers system will tell you where the answers is correct or incorrect. You can view this Basic Engineering & Sciences test question details at the end of the quiz.

Basic Engineering & Sciences Mock Test

Basic Engineering & Sciences questions answers are applicable for any kind of Engineering Entrance and PGCET preparation in India like GATE, TANCET. You can practice as much as you can to gather knowledge of how to answers Basic Engineering & Sciences critical type papers in short time and this can be a big factor for cracking all India level exam.

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Basic Engineering & Sciences Mock Test

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Question 1

Zeroth Law of thermodynamics defines

A	internal energy
B	enthalpy
C	temperature
D	pressure

Question 2

A heat engine is supplied with 800 kJ/sec of heat at 600 K and heat rejection takes place at 300 k. Which one of the following results report a reversible cycle?

A	200 kJ/sec are rejected
B	400 kJ/sec are rejected
C	100 kJ/sec are rejected
D	500 kJ/sec are rejected

Question 3

If a system neither exchanges mass nor energy with the surroundings, it is known as

A	segregated system
B	semi closed system
C	closed system
D	isolated system

Question 4

If a magnet is broken into two pieces, each piece processes two poles. The strength of the new poles is ___________ as the poles of original magnet.

A	same
B	one half
C	double
D	triple

Question 5

When a dielectric is inserted into the gap of a capacitor, the capacitance always

A	decrease
B	remain same
C	increase
D	goes to zero

Question 6

The electrons in a cooper pair have

A	Equal and same spins
B	Equal and opposite spins
C	Unequal spins
D	None of the above

Question 7

White light passes through two slits 0.5mm apart, and an interference pattern is observed on a screen 2.5 m away. The first order fringe resembles a rainbow with violet and red light at opposite ends. The violet light is about 2 mm from the centre of central white fringe. The wavelength for the violet light is

A	200nm
B	350nm
C	400nm
D	500nm

Question 8

The shortest wavelength X-ray photon emitted in an X-ray tube subjected to 50 kV will be (Planck’s constant = 6.63 x 10^-19 J.S, speed of light in vacuum = 3.0 x 10⁸ m/s and charge of electron = 1.6 x 10^-19 C)

A	2.5 nm
B	0.25 nm
C	0.0025 nm
D	0.025 nm

Question 9

A sodium surface is illuminated with light having a wavelength of 300 nm. The work function for sodium metal is 2.46 eV. The maximum kinetic energy of the ejected photoelectrons is

A	1.67 eV
B	16.7 eV
C	0.16 eV
D	167 eV

Question 10

Which one of the following phenomena does not effect the direction of wave light?

A	Dispersion
B	Diffraction
C	Polarisation
D	Refraction

Question 11

A person shines coherent light through an object A. Which produces a pattern of concentric rings on a screen B. A is most likely

A	a single slit
B	a pinhole
C	a multiple- slit diffraction grating
D	a polarization filter

Question 12

A perfect or an ideal fluid is one that is

A	a real fluid
B	which obeys perfect gas laws
C	compressive and gaseous
D	incompressible and frictionless

Question 13

In a sample of water an increases is pressure by 18Mpa caused 0.5% reduction in the volume. The bulk modulus of elasticity for the sample in Mpa is

A	3.6
B	360
C	3600
D	0.36

Question 14

Streamline, pathline and streakline are identical when the flow is

A	steady
B	uniform
C	unsteady
D	neighter steady nor uniform

Question 15

The chemical Oxygen demand (COD) test is used to measure

A	non biodegradable organics
B	bio- degradable organics
C	non- biodegradable inorganics
D	bio- degradable inorganics

Question 16

A DC series motor should not be run at no load, because it will

A	draw a dangerously large current
B	stall
C	run at a dangerously high speed
D	draw a dangerously high current and run at a dangerously high speed

Question 17

Power input to a transformer on no load at rated voltage comprises predominantly

A	Cooper loss
B	Hysteresis loss
C	Core loss
D	Eddy current loss

Question 18

In a generating synchronous machine, The rotor field

A	lags the stator field and electromagnetic torque is developed in a direction opposite to the direction of rotation of rotor.
B	lags the stator field and electromagnetic torque is developed in the direction of rotation of the rotor
C	leads the stator field and electromagnetic torque is developed in the direction opposite to that of rotation of the rotor
D	leads the stator field and electromagnetic torque is developed in the direction of rotation of the rotor

Question 19

Absolute instruments are those which

A	gives the magnitude of the quantity under measurement of the instruments
B	directly indicate the measured quantity on a display unit
C	are calibrated by comparison with a secondary instrument
D	are very popularly used

Question 20

Moving coil instrument can be used for measurements at

A	high frequencies
B	low frequencies
C	only DC
D	both AC and DC

Question 21

Storages class static can be used to

A	restrict the scope of an external identifier
B	preserve the exit value of variables
C	provide privacy to a set of functions
D	all of the above

Question 22

In a C expression involving ll operator evaluation

A	will be stopped in one of its components evaluates to false
B	will be stopped in one of its components evaluates to true
C	takes place from right to left
D	takes place from left to right

Question 23

Analog system are different from digital systems because they

A	use transistors
B	handle information analog form
C	handle information in digital form
D	are slow

Question 24

Which one of the following is not a form of memory?

A	Instruction cache
B	Instruction register
C	Instruction opcode
D	Translation lookaside buffer

Question 25

In which one of the following gates the ouput is 1, if and only if at least one input is 1?

A	NOR
B	AND
C	OR
D	NAND

Question 26

The variables which can be accessed by all modules in a program are called

A	local variables
B	internal variables
C	external variables
D	global variables

Question 27

Which one of the following is useful in traversing a given graph by breadth first search?

A	Stack
B	Set
C	List
D	Queue

Question 28

Carbonisation involves

A	destructive distillation of coal in the absence of air
B	heating coal obtain coke by roasting
C	heating coal to remove moisture by distillation
D	destructive distillation of coal in air to form coke

Question 29

Reforming is carried out in refinery to

A	produce straight run gasoline
B	remove sulphur
C	increases the boiling range to the product
D	rearrange the molecular structure of the feel hydrocarbons

Question 30

If the order of a reaction with respect to [OH-]= -1, the hydroxide ion acts as

A	a promoter
B	an inhibitor
C	a catalyst
D	a moderator

Question 31

The location reagent used for the detection of amino acid spots in TLC is

A	Phosphoric acid
B	Dinitrosalicylic acid
C	Ninhydrin
D	Glacial acetic acid

Question 32

Which one of the following chemicals is used for sample preparation for recording IR spectra?

A	Calcium chloride
B	Liquid paraffin
C	Ethanol
D	Sodium iodide

Question 33

The theorem used for equilibrium of concurrent coplanar forces is

A	Varignon’s Theorem
B	Lame’s Theorem
C	Parallel Axis Theorem
D	Perpendicular Axis Theorem

Question 34

The path traced by the particle which thrown at an angle ‘Ɵ’ with respect to horizontal is

A	straight line
B	parabola
C	triangle
D	ellipse

Question 35

Frictional force depends on the

A	type of two surfaces in contact and normal reaction
B	Material strength of the surfaces in contact
C	Area of contact of the two surfaces
D	Facture toughness of the two materials is contact

Question 36

How the area moment of inertia of the beam of rectangular cross- section can be increased?

A	Depth of the beam is greater than the width of the beam cross- section
B	Depth of the beam is equal to width of the beam cross- section
C	Depth of the beam is less than the width of the beam cross- section
D	Cannot be increased

Question 37

A mode of fracture that is attended by extensive plastic deformation is called

A	Brittle fracture
B	Ductile fracture
C	Plastic fracture
D	Fatigue fracture

Question 38

The material in which spontaneous polarization changes with temperature is known as

A	Piezo electric
B	Ferro electric
C	Pyro electric
D	Magneto optic

Question 39

The dielectric constant of the commonly used ceramics varies between

A	1 and 3
B	4 and 10
C	11 and 16
D	16 and 25

Question 40

The Reynolds number for a 25 mm diameter sphere moving with velocity of 3 m/s through an oil of specific gravity 0.90 and μ = 0.1 Pa.s. is

A	675
B	6622
C	66220
D	0.675

Question 41

The maximum velocity divided by the average velocity in laminar Poisseuille flow between two parallel plates is

A	2
B	1.5
C	1.25
D	0.8

Question 42

Boundary layer separation is caused by

A	Reduction of pressure in the flow direction
B	Pressure of adverse pressure gradient
C	Pressure of favourable pressure gradient
D	Reduction of boundary layer thickness

Question 43

Principle of jet propulsion is utilized in

A	Car
B	Pump
C	Satellite
D	Ship

Question 44

Ohm’s Law is applicable to

A	Silicon carbide
B	Zener diode
C	Voltage regulator tubes
D	Copper

Question 45

Bridge that is used for two resistance measurement is

A	Wheatstone bridge
B	Kelvin’s double bridge
C	Maxwell’s bridge
D	Anderson’s bridge

Question 46

If the dimensions of all the parts of a synchronous generator, and the number of field and armature turns are doubled, then the generated voltage will change by a factor of

A	1
B	2
C	4
D	8

Question 47

Zeroth law of thermodynamics postulate

A	Thermodynamic equilibrium
B	Heat equilibrium
C	Temperature equilibrium
D	Thermal equilibrium

Question 48

In a nozzle flow in thermodynamics

A	M = 0
B	W = 0
C	E = 0
D	V = 0

Question 49

Clausius in equality is applicable for

A	Heat engines
B	Heat generators
C	Refrigerators
D	Cooling towers

Question 50

Convert 0.9375 to binary

A	0.0111
B	0.1011
C	0.1111
D	None of these

Question 51

(1a00*10b) / 1010 = 100

A	a = 0, b = 0
B	a = 0, b = 1
C	a = 1, b = 0
D	a = 1, b = 1

Question 52

Find the output for the following C program Main () { Char*p1=”Name”; Char*p2; P2=(char*malloc(20); While(*p2++=*p1++); Printf(‘’%s\n”,p2); }

A	Empty String
B	Name
C	Name\\\
D	Error

Question 53

Find the output for the following C program Main () { int x=5; printf(‘’%d %d %d\n”, x, x < <2, x > > 2); }

A	5 20 1
B	5 10 2
C	5 20 5
D	5 10 1

Question 54

From the following four choices, find the odd man out

A	INTEL
B	MOTOROLA
C	NEC
D	IBM

Question 55

From the following four choices, find the odd man out with reference to computer terminology.

A	ROM
B	PROM
C	EPROM
D	EEPROM

Question 56

In radiography x- rays are used because x- rays

A	get diffracted inside the object through which it penetrates
B	are differentially absorbed by the inhomogenity of the material through which it passes
C	produce heat effect
D	are harmless radiation

Question 57

The idea of the quantum nature of light is required to explain

A	interference of light
B	thermionic emission
C	Radioactivity
D	Blackbody radiation

Question 58

The wavelength of emission from He- Ne laser is

A	10.64 μm
B	337.1 nm
C	694.3 nm
D	632.8 nm

Question 59

An optical fibers has a core materials of refractive index of 1.55 and cladding material of refractive index of 1.50. The numerical aperture of the fabre is

A	0.05
B	0.39
C	3.05
D	0.90

Question 60

Which of the following statement regarding the absorption of a gas on a solid is correct? I. The amount of gas absorbed increases with increase in pressure II. The amount of gas absorbed increases with increase in temperature III. The amount of gas absorbed increases with increase in the area of the absorbent

A	I and II
B	I and III
C	II and III
D	I, II and III

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Basic Engineering & Sciences Mock Test

Basic Engineering & Sciences Mock Test

Basic Engineering & Sciences Mock Test

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