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Exam Details

2021 Mechanical Engineering

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Questions 300
Duration 180 mins
Package Indian Economic Service and Indian Statistical Service Examination - Previous Year Papers

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Subject distribution

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Topic distribution

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Subtopic distribution

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Difficulty distribution

Hard 100 33.3%
Easy 100 33.3%
Medium 100 33.3%

Question type distribution

Multiple Choices 300 100%

Syllabus

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Sample questions from this paper

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1
2021 · Unclassified
2021 Mechanical Engineering
A stone weighs 400 N in air and when immersed in water it weighs 225 N. If the specific weight of water is 9810 N/m3, the relative density of the stone will be nearly
A
5·9
B
4·7
C
3·5
D
2·3
2
2021 · Unclassified
2021 Mechanical Engineering
In various solar energy storage systems, pumped hydro-electric storage system falls under which one of the following categories ?
A
Thermal energy storage
B
Electrical energy storage
C
Mechanical energy storage
D
Electromagnetic energy storage
3
2021 · Unclassified
2021 Mechanical Engineering
A flat plate 0·1 m2 area is pulled at 30 cm/s relative to another plate located at a distance of 0·01 cm from it, the fluid separating them being water with viscosity of 0·001 Ns/m2. The power required to maintain velocity will be
A
0·05 W
B
0·07 W
C
0·09 W
D
0·11 W
4
2021 · Unclassified
2021 Mechanical Engineering
What is the standard value of solar constant adopted by World Radiation Centre ?
A
1192 W/m2
B
1084 W/m2
C
1927 W/m2
D
1367 W/m2
5
2021 · Unclassified
2021 Mechanical Engineering
When the pressure of liquid is increased from 3 MN/m2 to 6 MN/m2, its volume is decreased by 0·1%. The bulk modulus of elasticity of the liquid will be
A
3 × 10¹2 N/m2
B
3 × 10⁹ N/m2
C
3 × 10⁸ N/m2
D
3 × 10⁴ N/m2
6
2021 · Unclassified
2021 Mechanical Engineering
What is the tip speed ratio of savonius wind turbine rotor ?
A
1
B
3
C
5
D
7