Exam Details
ISRO Mechanical Engineering 2007
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Questions
80
Duration
180 mins
Package
ESE & GATE ME - Previous Year Papers
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Difficulty distribution
80questions
Medium
50
62.5%
Easy
27
33.8%
Hard
3
3.8%
Question type distribution
80questions
Multiple Choices
80
100%
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Sample
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2007 · Unclassified
ISRO Mechanical Engineering 2007
Only rocket engines can be propelled to space because ________.
2007 · Unclassified
ISRO Mechanical Engineering 2007
The universal gas constant of a gas is the product of molecular weight of the gas and
2007 · Unclassified
ISRO Mechanical Engineering 2007
Vander Waal’s equation of state of a gas is
A
PV =nRT
B
C
D
2007 · Unclassified
ISRO Mechanical Engineering 2007
The radiative heat transfer rate per unit area (W/m2) between two plane parallel grey surfaces (emissivity = 0.9) maintained at 400 K and 300 K is (Stefan Bottzman constant = 5.67 x 10-8 W/m2 K4)
2007 · Unclassified
ISRO Mechanical Engineering 2007
The efficiency of any heat engine and efficiencyR of a reversible heat engine operating between common heat source and heat sink are related as
A
>
B
<
C
D
2007 · Unclassified
ISRO Mechanical Engineering 2007
A spherical shaped vessel of 1.4 m outer diameter is 90 mm thick. Find the rate of heat leakage, if the temperature difference between the inner and outer surfaces is 220 °C. Thermal conductivity of the material of the sphere is 0.083 W/m K.