Mock Test: SSC JE (ME)- 12

# Mock Test: SSC JE (ME)- 12

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## 100 Questions MCQ Test Mechanical Engineering SSC JE (Technical) | Mock Test: SSC JE (ME)- 12

Mock Test: SSC JE (ME)- 12 for Mechanical Engineering 2023 is part of Mechanical Engineering SSC JE (Technical) preparation. The Mock Test: SSC JE (ME)- 12 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Mock Test: SSC JE (ME)- 12 MCQs are made for Mechanical Engineering 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Mock Test: SSC JE (ME)- 12 below.
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Mock Test: SSC JE (ME)- 12 - Question 1

### Entropy may be expressed as a function of

Mock Test: SSC JE (ME)- 12 - Question 2

### Which of the following is not a conserved quantity ?

Mock Test: SSC JE (ME)- 12 - Question 3

### Which of the following conditions are favourable for liquefaction of a gas?

Mock Test: SSC JE (ME)- 12 - Question 4

The work done in a reversible adiabatic process from state 1 to states 2 is given by

Mock Test: SSC JE (ME)- 12 - Question 5

Ratio of specific heat for an ideal gas is given by

Detailed Solution for Mock Test: SSC JE (ME)- 12 - Question 5

Mock Test: SSC JE (ME)- 12 - Question 6

The Characteristic equation of gases PV = nRT holds good for

Mock Test: SSC JE (ME)- 12 - Question 7

In thermodynamics analysis, a pure substance is that which

Mock Test: SSC JE (ME)- 12 - Question 8

The measurement of a thermodynamic property known as temperature is based on

Mock Test: SSC JE (ME)- 12 - Question 9

The behaviour of super heated vapour is similar to that of

Mock Test: SSC JE (ME)- 12 - Question 10

Mock Test: SSC JE (ME)- 12 - Question 11

The processes occurring in open system which permit the transfer of mass to and from the system, are known as

Mock Test: SSC JE (ME)- 12 - Question 12

A process, in which the working substance neither receives nor gives out heat to its surroundings during its expansion or compression, is called

Mock Test: SSC JE (ME)- 12 - Question 13

One tonne refrigerator machine means that

Mock Test: SSC JE (ME)- 12 - Question 14

Air refrigeration cycle is generally employed in

Mock Test: SSC JE (ME)- 12 - Question 15

Which is usually the costliest item in a refrigeration system ?

Mock Test: SSC JE (ME)- 12 - Question 16

The relative coefficient of performance is equal to

Mock Test: SSC JE (ME)- 12 - Question 17

An external gear with 60 teeth meshes with a pinion of 20 teeth, module being 6 mm. What is the centre distance in mm ?

Mock Test: SSC JE (ME)- 12 - Question 18

The top of the piston in two-stroke engine is

Mock Test: SSC JE (ME)- 12 - Question 19

Main advantage of a two- stroke engine over four-stroke engine is

Mock Test: SSC JE (ME)- 12 - Question 20

Compression ratio in case of CI engine is in the range of

Mock Test: SSC JE (ME)- 12 - Question 21

For an Otto cycle, the increase in compression ratio leads to

Detailed Solution for Mock Test: SSC JE (ME)- 12 - Question 21

Mock Test: SSC JE (ME)- 12 - Question 22

For the same peak pressure and work output

Mock Test: SSC JE (ME)- 12 - Question 23

In a four stroke cycle petrol engine, the expansion

Mock Test: SSC JE (ME)- 12 - Question 24

The spark ignition engines are governed by

Mock Test: SSC JE (ME)- 12 - Question 25

In thermal power plants, the dearator is used mainly to

Mock Test: SSC JE (ME)- 12 - Question 26

Which device is used in thermal power plants to reduce level of pollution?

Mock Test: SSC JE (ME)- 12 - Question 27

Which one of the following is NOT and accessory for the boiler ?

Mock Test: SSC JE (ME)- 12 - Question 28

The shape of the lid of a manhole in a boiler is

Mock Test: SSC JE (ME)- 12 - Question 29

Match List-I (Type of boiler) with List-II (Features) select the correct answer using the
codes given below the lists:
List-I
a. Benson
b. Stirling
c. Babcock-Wilcox
d. Cochran
List-II
1. Vertical fire tube
2. Horizontal fire tube
3. Bent water tube
4. Once through flow
5. Inclined water tube

Mock Test: SSC JE (ME)- 12 - Question 30

In parson's turbine ifa is nozzle angle, then what is the maximum efficiency of the turbine

Mock Test: SSC JE (ME)- 12 - Question 31

The critical pressure ratio for maximum discharge through a nozzle is given by

Detailed Solution for Mock Test: SSC JE (ME)- 12 - Question 31

Mock Test: SSC JE (ME)- 12 - Question 32

The shell of the Cochran boiler is made hemispherical

Mock Test: SSC JE (ME)- 12 - Question 33

Which of the following statement is wrong?

Mock Test: SSC JE (ME)- 12 - Question 34

Blow off cock in a boiler is used to

Mock Test: SSC JE (ME)- 12 - Question 35

The time of oscillation of a floating body with increase in metacentric height will be

Detailed Solution for Mock Test: SSC JE (ME)- 12 - Question 35

Mock Test: SSC JE (ME)- 12 - Question 36

All the terms of energy of Bernoulli's equation have dimension of

Mock Test: SSC JE (ME)- 12 - Question 37

The turbulent flow has

Mock Test: SSC JE (ME)- 12 - Question 38

The logarithmic velocity distribution is observed in

Mock Test: SSC JE (ME)- 12 - Question 39

If a set of pipes described by (L1, D1, f1), (L2,D2,f2)....... are connected in series then an
equivalent pipe (Le, De,fe) is related as

Detailed Solution for Mock Test: SSC JE (ME)- 12 - Question 39

If a set of pipes described by (L1, D1, f1), (L2,D2,f2)....... are connected in series then an
equivalent pipe (Le, De,fe) is related as

Mock Test: SSC JE (ME)- 12 - Question 40

An open channel of symmetric right angled triangular cross-section is conveying a discharge Q. Taking gas the acceleration due to gravity,what is the critical depth ?

Mock Test: SSC JE (ME)- 12 - Question 41

Match List I (Physical properties of fluid) with List II (Dimensions/definitions) and select the
correct answer using the codes given below the lists

Mock Test: SSC JE (ME)- 12 - Question 42

The Bernoulli's equation is based on the assumption that

Mock Test: SSC JE (ME)- 12 - Question 43

The discharge through an external mouthpiece is given by

Mock Test: SSC JE (ME)- 12 - Question 44

The total energy line lies over the hydraulic gradient line by an amount equal to the

Mock Test: SSC JE (ME)- 12 - Question 45

The viscosity of water at 20º C is

Mock Test: SSC JE (ME)- 12 - Question 46

A fluid whose viscosity does no change with the rate of deformation of shear strain is known as

Mock Test: SSC JE (ME)- 12 - Question 47

A fluid which obeys the Newton's law of viscosity is termed as

Mock Test: SSC JE (ME)- 12 - Question 48

The point of contraflexure in a beam is at the location where the

Mock Test: SSC JE (ME)- 12 - Question 49

Consider the simply supported beam AB subjected to the point loads of equal magnitudeas shown in the diagram below:

Which one of the following statement is correct?The position CD of the beam is

Mock Test: SSC JE (ME)- 12 - Question 50

At the neutral axis of simply beam, there is

Mock Test: SSC JE (ME)- 12 - Question 51

A cantilever beam of rectangular cross-section is subjected to a concentrated load at its free end. The state of stress at a point P on the centroidal longitudinal axis of beam is given by

Mock Test: SSC JE (ME)- 12 - Question 52

If the principal stresses on a plane stress problem are s1 = 100 MPa and s2 = 40 MPa, then themagnitude of shear stress (in MPa) will be

Detailed Solution for Mock Test: SSC JE (ME)- 12 - Question 52

Mock Test: SSC JE (ME)- 12 - Question 53

At a principal plane

Mock Test: SSC JE (ME)- 12 - Question 54

Maximum shear stress in a Mohr's circle

Mock Test: SSC JE (ME)- 12 - Question 55

The maximum principal stress theory is also known as

Mock Test: SSC JE (ME)- 12 - Question 56

A thin cylindrical shell of internal diameter d and thickness 't' is subjected to internal pressure 'p'. The change in diameter is given by

Detailed Solution for Mock Test: SSC JE (ME)- 12 - Question 56

Mock Test: SSC JE (ME)- 12 - Question 57

The ratio of bulk modulus to Young's modulus for a Poisson's ratio of 0.25 will be

Mock Test: SSC JE (ME)- 12 - Question 58

Within elastic limit, shear stress is ......... shear strain.

Mock Test: SSC JE (ME)- 12 - Question 59

A beam extending beyond the supports is called

Mock Test: SSC JE (ME)- 12 - Question 60

The linear velocity of a body rotating atw rad/ s along a circular path of radius r is given by

Mock Test: SSC JE (ME)- 12 - Question 61

The periodic time (T) is given by

Mock Test: SSC JE (ME)- 12 - Question 62

A pendulum which executes one beat per second is known as

Mock Test: SSC JE (ME)- 12 - Question 63

The ideal angle of banking provided on the curves on roads depends upon

Mock Test: SSC JE (ME)- 12 - Question 64

The piston rod and the cross head in a steam engine are usually connected by means of

Mock Test: SSC JE (ME)- 12 - Question 65

Match List-I (Application) with List-II (Joint) and select the correct answer using the code
given below the lists:

Mock Test: SSC JE (ME)- 12 - Question 66

The endurance limit i.e., resistance to fatigue of a machine element can be improved by

Mock Test: SSC JE (ME)- 12 - Question 67

Mock Test: SSC JE (ME)- 12 - Question 68

In case of pressure vessels having open ends, the fluid pressure induces

Mock Test: SSC JE (ME)- 12 - Question 69

According to Unwin's formula, the relation between the diameter of rivet hole (d) and the thickness of plate (t) is given by

Mock Test: SSC JE (ME)- 12 - Question 70

The efficiency of a riveted joint is equal to

Mock Test: SSC JE (ME)- 12 - Question 71

The difference between addendum and dedendum is known as

Mock Test: SSC JE (ME)- 12 - Question 72

Train value of a gear train is

Mock Test: SSC JE (ME)- 12 - Question 73

Which of the following machines does not require a flywheel ?

Mock Test: SSC JE (ME)- 12 - Question 74

A Hartnell governor is a governor of the

Mock Test: SSC JE (ME)- 12 - Question 75

Sensitivity of an isochronous governor is

Mock Test: SSC JE (ME)- 12 - Question 76

For a governor running at constant speed, what is the value of the force acting on the sleeve

Mock Test: SSC JE (ME)- 12 - Question 77

Which one of the following causes whirling of shafts?

Mock Test: SSC JE (ME)- 12 - Question 78

The pair is known as a higher pair, when the relative motion between the elements of a pair is

Mock Test: SSC JE (ME)- 12 - Question 79

An automobile steering gear is an example of

Mock Test: SSC JE (ME)- 12 - Question 80

In a steam engine, the link constitutes a

Mock Test: SSC JE (ME)- 12 - Question 81

Cores are used in the casting to

Mock Test: SSC JE (ME)- 12 - Question 82

Cold shut (lap) may occur in products obtained by

Mock Test: SSC JE (ME)- 12 - Question 83

Collapsible tooth paste tubes are manufactured by

Mock Test: SSC JE (ME)- 12 - Question 84

Cutting tool material 18-4-1 HSS has which one of the following composition

Mock Test: SSC JE (ME)- 12 - Question 85

Milling operation which produces flat vertical surfaces on both side of a work piece is known as

Mock Test: SSC JE (ME)- 12 - Question 86

The purpose of reaming is

Mock Test: SSC JE (ME)- 12 - Question 87

Grey cast iron is usually welded by

Mock Test: SSC JE (ME)- 12 - Question 88

The temperature of plasma torch is of the order is

Mock Test: SSC JE (ME)- 12 - Question 89

Which of the following material is best cut by oxy-cutting process ?

Mock Test: SSC JE (ME)- 12 - Question 90

The temperature of the heat produced by an arc is around

Mock Test: SSC JE (ME)- 12 - Question 91

When a steel containing more than 0.8% carbon in cooled slowly below the lower critical point, it consists of

Mock Test: SSC JE (ME)- 12 - Question 92

When the steel is normalised, its

Mock Test: SSC JE (ME)- 12 - Question 93

Which of the following is a case hardening process?

Mock Test: SSC JE (ME)- 12 - Question 94

Induction hardening is basically a

Mock Test: SSC JE (ME)- 12 - Question 95

In oblique cutting system, the cutting edge of the tool

Mock Test: SSC JE (ME)- 12 - Question 96

Ceramic tools are fixed to tool body by

Mock Test: SSC JE (ME)- 12 - Question 97

The tool life is affected by

Mock Test: SSC JE (ME)- 12 - Question 98

Tool life is generally better when

Mock Test: SSC JE (ME)- 12 - Question 99

Which of the following operation is first performed ?

Mock Test: SSC JE (ME)- 12 - Question 100

In drilling brass, a drill with

## Mechanical Engineering SSC JE (Technical)

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## Mechanical Engineering SSC JE (Technical)

6 videos|97 docs|55 tests