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# Test: Mechanical Engineering- 14

## 100 Questions MCQ Test Mock Test Series for SSC JE Mechanical Engineering | Test: Mechanical Engineering- 14

Description
This mock test of Test: Mechanical Engineering- 14 for Mechanical Engineering helps you for every Mechanical Engineering entrance exam. This contains 100 Multiple Choice Questions for Mechanical Engineering Test: Mechanical Engineering- 14 (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Mechanical Engineering- 14 quiz give you a good mix of easy questions and tough questions. Mechanical Engineering students definitely take this Test: Mechanical Engineering- 14 exercise for a better result in the exam. You can find other Test: Mechanical Engineering- 14 extra questions, long questions & short questions for Mechanical Engineering on EduRev as well by searching above.
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QUESTION: 3

### A carnot engine operates between 27ºC and 327ºC. If the engine produces 300 kj of work,what is the entropy change during heat addition ?

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QUESTION: 4

Three engines A, B and Coperating on Argon, Oxygen and Air respectively. Which engine will have higher efficiency ?

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QUESTION: 5

At critical point the enthalpy of vaporization is

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QUESTION: 6

Increase in entropy of a system represents

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QUESTION: 7

The knocking tendency in compression ignition engines increase with

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QUESTION: 8

The cetane number of automotive diesel fuel used in India is in which one of the following ranges ?

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QUESTION: 9

The delay period in CI engine depends upon which of the following ?

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QUESTION: 10

What is the cause of reheat factor in a steam turbine ?

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QUESTION: 11

Blade erosion in steam turbines takes place

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QUESTION: 12

Mobility of statically indeterminate structure is

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QUESTION: 13

The path of contact in involute gears is

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QUESTION: 14

Mitre gears are used for

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QUESTION: 15

Bevel gears have their teeth

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QUESTION: 16

Which one of the following governor is widely used in Gramophone

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QUESTION: 17

Which of the following are antifriction bearing

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QUESTION: 18

Bearing used for heavy loads are

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QUESTION: 19

Hydrostatic law of pressure is given as

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QUESTION: 20

A 70 kg person walks on snow with a total foot implant area of 500 cm2. What pressure doeshe exert on snow ?

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QUESTION: 21

The centre of buoyancy is

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QUESTION: 22

During floods, water entered an office having wooden tables. The position of tables, if floating,will be

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QUESTION: 23

While using boundary layer equations, Bernoulli's equation

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QUESTION: 24

The Euler's equation of motion is a statement of

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QUESTION: 25

Which one of the following is measured by a rotameter ?

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QUESTION: 26

The number of elastic constant for a completely anisotropic elastic material are

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QUESTION: 27

The number of elastic constant for a orthotropic material are

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QUESTION: 28

What is the relationship between the linear elastic properties young's modulus (E), rigidity modulus (G) and bulk modulus (K) ?

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QUESTION: 29

Slenderness ratio is defined as the ratio of

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QUESTION: 30

The slenderness ratio of a section is

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QUESTION: 31

Euler's formula holds good only for

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QUESTION: 32

A thin cylindrical shell of diameter d, length L and thickness t is subjectd to an internal pressure
p. What is the ratio of longitudinal strain to hoop strain in terms of Poission's ratio (1/m) ?

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QUESTION: 33

The volumetric strain in case of a thin cylindrical shell of diameter d, thickness t, subjected to
internal pressure p is

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QUESTION: 34

The correct sequence of elements of 18-4=1 HSS tool is

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QUESTION: 35

In relation VTn = C, the value of n, for ceramic tools

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QUESTION: 36

Ceramic cutting tool chip are fixed to the tool body by

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QUESTION: 37

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QUESTION: 38

Generally the value of point angle of a drill is

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QUESTION: 39

The different speeds on lathe are provided in

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QUESTION: 40

The two parts of a sand casting mould are called

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QUESTION: 41

Fluidity is greatly influenced by

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QUESTION: 42

In D.C. reverse polarity arc welding

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QUESTION: 43

In which of the following welding techniques in vacuum environment required

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QUESTION: 44

Which one of the following welding processes consists of minimum heat affected zone

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QUESTION: 45

Which one of the following is not an electric resistance method of welding

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QUESTION: 46

A medium carbon steel workpiece is turned on a lath at 50 m/ min cutting speed, 0.8 mm/ revfeed and 1.5 mm depth of cut, what is the rate of metal removal

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QUESTION: 47

In a typical metal cutting operation, using a cutting tool of positive rake a = 10º. It was observed that the shear angle was 20º the friction angle is

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QUESTION: 48

Primary tool force used in calculating the total power consumption in machining is

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QUESTION: 49

When the molten metal is poured in a mould, it may pass through the following items in sequence

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QUESTION: 50

A trepanning tool is used on

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QUESTION: 51

In solidification of metal during casting, compensation for solid contraction is

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QUESTION: 52

When trying to turn a key into a lock, following is applied

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QUESTION: 53

Properties of substances like pressure, temperature and density , in thermodynamic coordinates are

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QUESTION: 54

A perpetual motion machine is

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QUESTION: 55

Air refrigerators work on

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QUESTION: 56

Second law of thermodynamics defines

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QUESTION: 57

An isentropic process on T-S diagram is represented by a

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QUESTION: 58

The area under curve on T-S diagram represents the

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QUESTION: 59

Dynamic viscosity (m) has the dimensions as

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QUESTION: 60

The co-efficient of discharge (Cd) in terms of Cv and Cc is

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QUESTION: 61

For viscous flow between two parallel plates, the pressure drop per unit length is equal to

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QUESTION: 62

Total energy line (T.E.L) represents the sum of

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QUESTION: 63

Hydraulic gradient line (H.G. L.) represents the sum of

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QUESTION: 64

The loss of head due to sudden contraction of a pipe is equal to

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QUESTION: 65

The property of a material by virtue of which a body returns to its original shape after removal of the load is called

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QUESTION: 66

The ratio of direct stress to volumetric strain in case of a body subjected to three mutually perpendicular stresses of equal intensity, is equal to

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QUESTION: 67

The dimension of young's modulus of elasticity is given by

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QUESTION: 68

Match the items in columns I and II Solution:
QUESTION: 69

There are two points P and Q on a planar rigid body. The relative velocity between the two points

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In the figure shown, the relative velocity of link 1 with respect of link 2 is 12m/ sec. Link 2 rotates at a constant speed of 120 rpm. The magnitude of Coriolis component of acceleration of link 1 is Solution:
QUESTION: 71

Axial thrust is minimum in case of

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QUESTION: 72

Gearing contact is which one of the following ?

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QUESTION: 73

If the two pulleys in a belt drive have different values of coefficient of friction, then the design will be based on the pulley for which

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QUESTION: 74

Alloy containing Tin is

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QUESTION: 75

The ductility of a material with work hardening

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QUESTION: 76

Which among the following is slowest speed operation in lathe

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QUESTION: 77

Soft materials can not be economically grinded due to

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QUESTION: 78

Feed rate in milling operation is expressed as

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QUESTION: 79

The machining process which makes a stepped cylindrical recess at the top of a hole to accommodate bolt head is called

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QUESTION: 80

Internal and external threads of different pitches can be produced by

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QUESTION: 81

The casting defect which is not caused by the high pouring temperature of melt is

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QUESTION: 82

The impurities in true centrifugal casting

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QUESTION: 83

In a gas welding of mild steel using an neutral flame the total amount of acetylene consurmed is 10 litre. the oxygen consumption is

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QUESTION: 84

Pinch effect in welding is the result of

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QUESTION: 85

The maximum heat in resistance welding is at the

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QUESTION: 86

If a i is the rake angle of the cutting tool f is the shear angle and V is the cutting velocity, velocity of chip sliding along the shear plane is given by

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QUESTION: 87

The size of inlet valve of an engine in comparison to exhaust valve is

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QUESTION: 88

The domestic refrigerator uses following type of compressor

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QUESTION: 89

The adiabatic equation of a perfect gas is

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QUESTION: 90

The forces which meet at one point, but their lies of action do not lie in a plane are called

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QUESTION: 91

A perfact gas

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QUESTION: 92

The buoyancy depends on

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QUESTION: 93

Euler's dimensionless number relates the following

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QUESTION: 94

Liquids transmit pressure equally in all the directions. This is according to

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QUESTION: 95

Centre of pressure compared to c.g. is

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QUESTION: 96

Flow of water in a pipe about 3 metres in diameter can be measured by

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QUESTION: 97

The equation of continuity of flow is based on the principle of conservation of

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QUESTION: 98

The length of divergent portion of ventrumeter in comparison to convergent portion is

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QUESTION: 99

The intensity of stress which causes unit strain is called

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QUESTION: 100

True stress- strain curve for materials is plotted between

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