Mock Test: SSC JE (ME)- 5

# Mock Test: SSC JE (ME)- 5

Test Description

## 100 Questions MCQ Test Mechanical Engineering SSC JE (Technical) | Mock Test: SSC JE (ME)- 5

Mock Test: SSC JE (ME)- 5 for Mechanical Engineering 2023 is part of Mechanical Engineering SSC JE (Technical) preparation. The Mock Test: SSC JE (ME)- 5 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Mock Test: SSC JE (ME)- 5 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)- 5 below.
Solutions of Mock Test: SSC JE (ME)- 5 questions in English are available as part of our Mechanical Engineering SSC JE (Technical) for Mechanical Engineering & Mock Test: SSC JE (ME)- 5 solutions in Hindi for Mechanical Engineering SSC JE (Technical) course. Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free. Attempt Mock Test: SSC JE (ME)- 5 | 100 questions in 100 minutes | Mock test for Mechanical Engineering preparation | Free important questions MCQ to study Mechanical Engineering SSC JE (Technical) for Mechanical Engineering Exam | Download free PDF with solutions
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Mock Test: SSC JE (ME)- 5 - Question 1

### A system comprising of a pure substance executes reversibly a cycle 1-2-3-4-1 consisting of two isentropic and two isochoric processes as shown in the    Which one of the following is the correct representation of this cycle on the tempertureentropy coordinates?

Mock Test: SSC JE (ME)- 5 - Question 2

### Match List-I (Process index 'n') with List-Ii (Ts traces) and select the correct answer using the code given below the list

Detailed Solution for Mock Test: SSC JE (ME)- 5 - Question 2

Mock Test: SSC JE (ME)- 5 - Question 3

### Direction : Each of the next consists of two statements, one labelled as the 'Assertion (A)' and the other as 'Reason (R)'. You are to examine these two statements carefully and select the answers to these items using the codes given below: Assertion (A): An air filled balloon released from the ground goes up and up till it reaches a certain elevation and floats in the air.   Reason (R): with increase in elevation the temperature of the atmospheric air increases and so the density decreases.

Mock Test: SSC JE (ME)- 5 - Question 4

When a system is taken from state A to state B along the path A-C-B, 180 kJ of the heat flows into the system and it does 130 kJ of work (as shown in the figure below):

How much heat will flow into the system along the path A-D-B if the work done by it along the path is 40 kJ?

Detailed Solution for Mock Test: SSC JE (ME)- 5 - Question 4

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

A system while undergoing a cycle A-B-C-D- A has the values of heat and work transfers as given
in the table

The power developed in kW is, nearly,

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

Mock Test: SSC JE (ME)- 5 - Question 6

In a throttling process, which one of the following parameters remains constant ?

Mock Test: SSC JE (ME)- 5 - Question 7

At critical point the enthalpy of vaporization is

Mock Test: SSC JE (ME)- 5 - Question 8

Joule-Thomson coefficient is defined as

Mock Test: SSC JE (ME)- 5 - Question 9

The specific heat at constant volume is

Mock Test: SSC JE (ME)- 5 - Question 10

When a system changes its state from one equilibrium state to another equilibrium state, thenthe path of successive states through which the system has passed, is known as

Mock Test: SSC JE (ME)- 5 - Question 11

When the gas is cooled at constant pressure,

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

The polytropic index (n) is given by

Mock Test: SSC JE (ME)- 5 - Question 13

In aqua-ammonia and Lithium -bromide water absorption refrigeration systems, the refrigerantsare respectively

Mock Test: SSC JE (ME)- 5 - Question 14

The desirable property of a refrigerant is

Detailed Solution for Mock Test: SSC JE (ME)- 5 - Question 14

Physical Properties of Refrigerants

Low Condensing Pressure.
High Evaporator Pressure.
High Critical Pressure.
High Vapor Density.
High Dielectric strength.
High Latent Heat of Vaporization.
High Heat Transfer Coefficient.

Mock Test: SSC JE (ME)- 5 - Question 15

The refrigerant used for absorption refrigerators working heat from solar collectors is mixture ofwater and

Mock Test: SSC JE (ME)- 5 - Question 16

The maximum COP for the absorption cycle is given by (TG = generator temperature TC=environment temperature, TE= refrigerated space temperature)

Mock Test: SSC JE (ME)- 5 - Question 17

The coefficient of performance of a refrigeration working on a reversed Carnot cycel is 4. Theratio of the highest absolute temperature to the lowest absolute temperature is

Detailed Solution for Mock Test: SSC JE (ME)- 5 - Question 17

Mock Test: SSC JE (ME)- 5 - Question 18

In a petrol engine, the fuel supplied to the engine cylinder is mixed with required quanity of air andthe mixture is ignited with a

Mock Test: SSC JE (ME)- 5 - Question 19

In a petrol engine, the mixture has the lowest pressure at the

Mock Test: SSC JE (ME)- 5 - Question 20

The diameter of the cylindrical shell of a Lancashire boiler is about

Mock Test: SSC JE (ME)- 5 - Question 21

The correct sequence of the given four cycles on T-s plane in figure 1, 2, 3, 4
(A) Rankine, Otto, Carnot and Diesel
(B) Rankine, Otto, Diesel and Carnot
(C) Otto, Rankine, Diesel and Carnot
(D) Otto, Rankine, Carnot and Diesel

Mock Test: SSC JE (ME)- 5 - Question 22

The two reference fuels used for cetane rating are

Mock Test: SSC JE (ME)- 5 - Question 23

The object of providing masked inlet valve in the air passes of compression ignition engines isto

Mock Test: SSC JE (ME)- 5 - Question 24

List-I gives the different terms related to combustion while List-II gives the outcome of
the events that follows. Match List-I with List-II and select the correct answer using the codes given below the lists:

Mock Test: SSC JE (ME)- 5 - Question 25

What is the main objective of supercharging of the engine?

Mock Test: SSC JE (ME)- 5 - Question 26

Which of the following is boiler mounting?

Mock Test: SSC JE (ME)- 5 - Question 27

Induced draught fans of a large steam generator have

Mock Test: SSC JE (ME)- 5 - Question 28

Benson boiler is one of the high pressure boilers having

Mock Test: SSC JE (ME)- 5 - Question 29

Which one of the following safety devices is used to protect the boiler when the water level fallsbelow a minimum level ?

Mock Test: SSC JE (ME)- 5 - Question 30

A gas turbine works on which one of the following cycles?

Mock Test: SSC JE (ME)- 5 - Question 31

The most commonly used moderator in nuclear power plants is

Mock Test: SSC JE (ME)- 5 - Question 32

A device used to heat feed water by utilising the heat in the exhaust flue gases before leavingthrough the chimney, is known as

Mock Test: SSC JE (ME)- 5 - Question 33

An air preheater

Mock Test: SSC JE (ME)- 5 - Question 34

The object of producing draught in a boiler is

Mock Test: SSC JE (ME)- 5 - Question 35

A piezometer tube is used only for measuring

Mock Test: SSC JE (ME)- 5 - Question 36

When a body is placed over a liquid, it will sink down if

Mock Test: SSC JE (ME)- 5 - Question 37

The Euler's equation for the motion of liquids is based upon the assumption that

Mock Test: SSC JE (ME)- 5 - Question 38

The discharge over a right angled notch is

Mock Test: SSC JE (ME)- 5 - Question 39

The unit power developed by a turbine is

Mock Test: SSC JE (ME)- 5 - Question 40

The specific speed of a turbine is given by the equation

Mock Test: SSC JE (ME)- 5 - Question 41

A turbine develops 10 000 kW under a head of 25 metres at 135 r.p.m. Its specific speed is

Mock Test: SSC JE (ME)- 5 - Question 42

For 450 m head of water,...... shall be used.

Detailed Solution for Mock Test: SSC JE (ME)- 5 - Question 42

Explanation : For 450 m head of water, Pelton wheel shall be used.

A Pelton turbine or Pelton wheel is a type of hydro turbine (specifically an impulse turbine) used frequently in hydroelectric plants. These turbines are generally used for sites with heads greater than 300 meters.

The water in a Pelton turbine is moving quickly and the turbine extracts energy from the water by slowing the water down, which makes this an impulse turbine.

Mock Test: SSC JE (ME)- 5 - Question 43

Which one of the following is the bulk modulus K of a fluid? (Symbols is have the usual meaning)

Mock Test: SSC JE (ME)- 5 - Question 44

An oil of specific gravity 0.9 has viscosity of 0.28 stokes at 38ºC. What will be its viscosity in Ns/m2?

Detailed Solution for Mock Test: SSC JE (ME)- 5 - Question 44

Mock Test: SSC JE (ME)- 5 - Question 45

If angle of contact of a drop of liquid is acute then

Mock Test: SSC JE (ME)- 5 - Question 46

Resultant pressure of the liquid in case of an immersed body acts through with one of thefollowing?

Mock Test: SSC JE (ME)- 5 - Question 47

A hydraulic jump occurs in a channel

Mock Test: SSC JE (ME)- 5 - Question 48

The thermal or temperature stress is a function of

Mock Test: SSC JE (ME)- 5 - Question 49

The total strain energy stored in a body is termed as

Mock Test: SSC JE (ME)- 5 - Question 50

When a load on the free end of a cantilever beam is increased, failure will occur

Mock Test: SSC JE (ME)- 5 - Question 51

Two simply supported beams 'A' and 'B' of same breadth and depth carries a central load W asshown fig. The deflection of beam 'B' will be ...... as that of beam 'A'.

Mock Test: SSC JE (ME)- 5 - Question 52

The polar moment of inertia of a hollow shaft of outer diameter (D) and inner Diameter (d) is

Mock Test: SSC JE (ME)- 5 - Question 53

Which one of the following expresses the total elongation of a bar of length L with a constant
cross-section of A and modulus of Elasticity E hanging vertically and subject to its own weight
W?

Mock Test: SSC JE (ME)- 5 - Question 54

The number of independent elastic constants required to express the stress-strain relationshipfor a linearly elastic isotropic material is

Mock Test: SSC JE (ME)- 5 - Question 55

If the ratio G/E (G= Rigidity modulus, E= Young's modulus of elasticity) is 0.4, then what is the valueof the Poisson ratio?

Detailed Solution for Mock Test: SSC JE (ME)- 5 - Question 55

Mock Test: SSC JE (ME)- 5 - Question 56

Match List – I (State of stress) with List -II (kind of loading) and select the correct answer using
the codes given below the lists

Mock Test: SSC JE (ME)- 5 - Question 57

Auto-frettage is a method of

Mock Test: SSC JE (ME)- 5 - Question 58

The maximum bending moment in a simply beam of length L loaded by a concentrated load W at
the midpoint is given by

Mock Test: SSC JE (ME)- 5 - Question 59

In a beam of circular cross-section, the shear stress variation across a cross section is

Mock Test: SSC JE (ME)- 5 - Question 60

The moment of a force

Mock Test: SSC JE (ME)- 5 - Question 61

The term 'centroid' is

Mock Test: SSC JE (ME)- 5 - Question 62

Moment of inertia of a hollow rectangular section as shown in fig. about X-X axis, is

Mock Test: SSC JE (ME)- 5 - Question 63

The friction experienced by a body, when in motion, is known as

Mock Test: SSC JE (ME)- 5 - Question 64

Which one of the following figures represents the maximum shear stress Theory or TRESCA
criterion?

Mock Test: SSC JE (ME)- 5 - Question 65

A rotating shaft carrying a unidirectional transverse load is subjected to :

Mock Test: SSC JE (ME)- 5 - Question 66

Removal of metal particles from the raceway of a rolling contact bearing is a kind of failure ofbearing known as

Mock Test: SSC JE (ME)- 5 - Question 67

The resistance of fatigue of a material is measured by

Mock Test: SSC JE (ME)- 5 - Question 68

The maximum shear stress theory is used for

Mock Test: SSC JE (ME)- 5 - Question 69

The maximum normal stress theory is used for

Mock Test: SSC JE (ME)- 5 - Question 70

Rankine's theory is used for

Mock Test: SSC JE (ME)- 5 - Question 71

A ball is thrown upwards and it returns to the ground describing a parabolic path which of thefollowing remains constant ?

Mock Test: SSC JE (ME)- 5 - Question 72

The number of instantaneous centres of rotation for a 10 link kinematic chain is

Mock Test: SSC JE (ME)- 5 - Question 73

In a Kinematic chain, a quaternary joint is equivalent to :

Mock Test: SSC JE (ME)- 5 - Question 74

Flywheel absorbs energy during those periods of crank rotation when

Mock Test: SSC JE (ME)- 5 - Question 75

Figure given below shows a spring-mass system where the mass m is fixed in between tw3o
springs of stiffness S1 and S2. What is the equivalent spring stiffness?

Mock Test: SSC JE (ME)- 5 - Question 76

The sensitivity of an isochronous governor is

Mock Test: SSC JE (ME)- 5 - Question 77

When the elements of a pair are kept in contact by the action of external forces, the pair is saidto be a

Mock Test: SSC JE (ME)- 5 - Question 78

In a single slider crank chain

Mock Test: SSC JE (ME)- 5 - Question 79

The included angle for the V-belt is usually

Mock Test: SSC JE (ME)- 5 - Question 80

For two governors A and B, the lift of sleeve of governor A is more than that of governor B, fora given fractional change in speed. It indicates that

Mock Test: SSC JE (ME)- 5 - Question 81

Match List-I (Heat treatment) with List-II (Effect on the properties) and select the correct
answer using the codes given below the lists:

Mock Test: SSC JE (ME)- 5 - Question 82

Match List-I (Name of material) with List-II (% Carbon range) and select the correct answer
using the codes given below the lists

Mock Test: SSC JE (ME)- 5 - Question 83

'Tempering' of quenched martensitic steel is necessary to improve the

Mock Test: SSC JE (ME)- 5 - Question 84

Resilience of a material becomes important when it is subjected to

Mock Test: SSC JE (ME)- 5 - Question 85

Match List-I (Product) with List-II (Process of Manufacture) and select the correct answer
using the codes given below the lists :

List-I
A. Automobile piston in aluminium alloy
B. Engine crankshaft in spheroidal graphite iron
C. Carburettor housing in aluminium alloy

List-II
1. Pressure die-casting
2. Gravity die-casting
3. Sand casting
4. Precision investment casting
5. Shell moulding

Mock Test: SSC JE (ME)- 5 - Question 86

In gating system design, which one of the following is the correct sequence in which chokearea, pouring time, pouring basin and sprue sizes are calculated ?

Mock Test: SSC JE (ME)- 5 - Question 87

In wire drawing process, the bright shining surface on the wire is obtained if one

Mock Test: SSC JE (ME)- 5 - Question 88

Best position on crank for blanking operation in a mechanical press is

Mock Test: SSC JE (ME)- 5 - Question 89

Which of the following materials is used in the manufacture of extrusion nozzles?

Mock Test: SSC JE (ME)- 5 - Question 90

In oxy-acetylene gas welding, for complete combustion, the volume of oxygen required perunit of acetylene is

Detailed Solution for Mock Test: SSC JE (ME)- 5 - Question 90

Mock Test: SSC JE (ME)- 5 - Question 91

Oxyacetylene reducing flame is used while carrying out the welding on

Mock Test: SSC JE (ME)- 5 - Question 92

In arc welding, arc is created between the electrode and work by

Detailed Solution for Mock Test: SSC JE (ME)- 5 - Question 92

An arc is generated between two conductors of electricity, cathode and anode (considering direct current, DC), when they are touched to establish the flow of current and then separated by a small distance. An arc is a sustained electric discharge through this ionised gas column called plasma between the two electrodes.

Mock Test: SSC JE (ME)- 5 - Question 93

Which one of the following is not used as abrasive material in grinding wheels ?

Mock Test: SSC JE (ME)- 5 - Question 94

The cutting tool material required to sustain high temperature is

Mock Test: SSC JE (ME)- 5 - Question 95

In arc welding, the temperature of heat produced by the electric arc is of the order of

Mock Test: SSC JE (ME)- 5 - Question 96

The temperature of the inner luminous cone of neutral flame is about

Mock Test: SSC JE (ME)- 5 - Question 97

Segmental chips are formed during machining

Mock Test: SSC JE (ME)- 5 - Question 98

The type of tool used on milling machine andbroaching machine is