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SSC JE 2019 - 20 technical Quiz 71
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Question 1
Change in internal energy in a reversible process occurring in a closed system is equal to the heat transferred if the process occurs at constant ____.
Question 2
a fillet weld is loaded parallel to its length by a load P. If the weld leg is h, the average shear stress on the throat area is
Question 3
Match List-I with List-II and select the correct answer using the code given below the Lists:
List-I
A) Stanton number
B) Grashoff number
C) Peclet number
D) Schmidt number
List-II
1) Natural convection
2) Mass transfer
3) Forced convection
4) Forced convection for small Pr. Number
List-I
A) Stanton number
B) Grashoff number
C) Peclet number
D) Schmidt number
List-II
1) Natural convection
2) Mass transfer
3) Forced convection
4) Forced convection for small Pr. Number
Question 4
The knocking tendency in compression ignition engines increases with
Question 5
Match List-I with List-II and select the correct answer using the code given below the list :
List-I
A. Capillarity
B. Vapour pressure
C. Viscosity
D. Specific gravity
List-II
1) Cavitation
2) Density of water
3) Shear forces
4) Surface tension
List-I
A. Capillarity
B. Vapour pressure
C. Viscosity
D. Specific gravity
List-II
1) Cavitation
2) Density of water
3) Shear forces
4) Surface tension
Question 6
In an Ultrasonic machining process, an electromechanical transducer is used to produce:
Question 7
A steady, incompressible flow is given by:
What is the convective acceleration along x-direction at point (1, 2)?
What is the convective acceleration along x-direction at point (1, 2)?
Question 8
A refrigeration plant uses a condenser with heat rejection ratio of 1.2. If the capacity of the plant is 210 kJ/min, then the value of the COP of the refrigeration plant is
Question 9
In the queuing theory, the number of arrivals per unit time is estimated by
Question 10
On heat transfer surface, fins are provided ____________.
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