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Exam Details

SSC JE Mechanical Engineering SET 6 (TECHNICAL) 2016

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

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Difficulty distribution

Medium 60 60%
Easy 28 28%
Hard 12 12%

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Multiple Choices 100 100%

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Sample questions from this paper

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1
2016 · Unclassified
SSC JE Mechanical Engineering SET 6 (TECHNICAL) 2016
Provision of fins on a given heat transfer surface will cause more heat transfer if there are ________.
A
Fewer number of thin fins
B
Fewer number of thick fins
C
Large number of thick fins
D
Large number of thin fins
2
2016 · Unclassified
SSC JE Mechanical Engineering SET 6 (TECHNICAL) 2016
Which of the following would lead to a reduction in thermal resistance?
A
In conduction, reduction in the thickness of the material and an increase in the thermal conductivity.
B
In convection, stirring of the fluid and cleaning the heating surface
C
In radiation, increasing the temperature and reducing the emissivity
D
All options are correct
3
2016 · Unclassified
SSC JE Mechanical Engineering SET 6 (TECHNICAL) 2016
Inspite of large heat transfer coefficients in boiling liquids, fins are used advantageously when the entire surface is exposed to _______.
A
Nucleate boiling
B
Film boiling
C
All modes of boiling
D
Transition boiling
4
2016 · Unclassified
SSC JE Mechanical Engineering SET 6 (TECHNICAL) 2016
The parameter(s) responsible for loss of heat from a hot pipe surface in a room without fans would include ___________.
A
Temperature of the surface and air in the room
B
Emissivity of the surface
C
Length and diameter of the pipe
D
All options are correct
5
2016 · Unclassified
SSC JE Mechanical Engineering SET 6 (TECHNICAL) 2016
The figure given below shows the variation of temperature across the thickness of materials with different thermal conductivities under steady states. Curve C will be applicable when thermal conductivity of the material _________
A
increases with increase in temperature
B
decreases with increase in temperature
C
is very large
D
is constant at all temperatures
6
2016 · Unclassified
SSC JE Mechanical Engineering SET 6 (TECHNICAL) 2016
On a summer day, a scooter rider feels more comfortable while on the move than while at a stop light because ________.
A
An object in motion captures less solar radiation
B
Air in transparent to radiation and hence it is cooler than the body
C
More heat is lost by convection and radiation while in motion
D
Air has low specific heat and hence it is cooler