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UP Polytechnic Lecturer: Mechanical Paper -2 || Quiz 9
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Question 1
Two walls of same thickness and cross-sectional area have thermal conductivities in the ratio 1 : 2. If the same temperature difference difference is maintained across the two faces of both the walls, what is the ratio of heat flow 
?
? Question 2
Choose the correct relationship between COP of refrigerator and Heat Pump.
Question 3
What is an azeotrope?
Question 4
Match List-I (Prime mover) with List-II (Air standard cycles) and select the correct answer using the code given below the lists:
List-i
A). High speed diesel engine
B). IC engine having expansion ratio greater than compression ratio
C). Pulse jet engine
D). Gas turbine with multi-stage compression and multi-stage expansion
List-ii
1). Atkinson cycle
2). Dual combustion (limited pressure) cycle
3). Ericsson cycle
4). Lenoir cycle
List-i
A). High speed diesel engine
B). IC engine having expansion ratio greater than compression ratio
C). Pulse jet engine
D). Gas turbine with multi-stage compression and multi-stage expansion
List-ii
1). Atkinson cycle
2). Dual combustion (limited pressure) cycle
3). Ericsson cycle
4). Lenoir cycle
Question 5
The component of torque converter that allows torque multiplication is
Question 6
Gibbs free energy (G) is given by____.
Question 7
A steady incompressible flow field is given by 
The convective acceleration along x-direction at point (1, 2) is
The convective acceleration along x-direction at point (1, 2) is Question 8
The tendency of petrol to detonate in terms of octane number is determined by comparison of fuel with which of the following?
Question 9
In a vapour compression refrigeration cycle for making ice, the condensing temperature for higher COP
Question 10
Which of the following statement is false?
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