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Exam Details

SSC JE Mechanical Engineering 2020 TECHNICAL 22 MARCH SHIFT 2 2021

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Questions 100
Duration 180 mins
Package AE & JE Exams - Previous Year Papers

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Difficulty distribution

Medium 66 66%
Easy 21 21%
Hard 13 13%

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Multiple Choices 100 100%

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1
PYP · Unclassified
SSC JE Mechanical Engineering 2020 TECHNICAL 22 MARCH SHIFT 2 2021
Define pure substance.
A
Substance which is available in the purest form in nature
B
Substance with non-uniform composition
C
A single substance without any mixture
D
Substance with fixed chemical composition throughout
2
PYP · Unclassified
SSC JE Mechanical Engineering 2020 TECHNICAL 22 MARCH SHIFT 2 2021
The specific gravity of water at standard atmospheric conditions is:
A
1
B
greater than 1
C
0
D
less than 0
3
PYP · Unclassified
SSC JE Mechanical Engineering 2020 TECHNICAL 22 MARCH SHIFT 2 2021
Which of the following statements is more relevant?
A
In the Eulerian method, control volume approach is not used.
B
In the Lagrangian approach, a fluid particle of fixed mass is considered.
C
Fluid kinematics deals with the action of the forces in producing or changing motion of fluid.
D
In kinematics of fluid flow, pressure is a vector field.
4
PYP · Unclassified
SSC JE Mechanical Engineering 2020 TECHNICAL 22 MARCH SHIFT 2 2021
In a triple fluid vapour absorption refrigeration system, hydrogen gas is used to:
A
improve system performance
B
circulate the refrigerant
C
reduce partial pressure of refrigerant in evaporator
D
provide vapour seal
5
PYP · Unclassified
SSC JE Mechanical Engineering 2020 TECHNICAL 22 MARCH SHIFT 2 2021
In the context of aircraft refrigeration cycle, what is temperature of air at the exit
of cooling turbine in the absence of moisture condensation?
A
Dry air temperature (DAT)
B
Super-saturated temperature
C
Dry air rated temperature (DART)
D
Saturated temperature
6
PYP · Unclassified
SSC JE Mechanical Engineering 2020 TECHNICAL 22 MARCH SHIFT 2 2021
Which of the following statements is INCORRECT in the context of static fluid pressure?
A
It exerts force normal to the walls of the container.
B
It is independent of shape or area of the container.
C
It is directly proportional to depth of fluid.
D
At any particular depth. it changes with direction.