Related Questions

The temperature at which a gas, when subjected to Joule-Thomson expansion, neither cools or heats up, is termed as the __________ temperature. Above this temperature the gas heats up on throttling and below this the gas cools down.
A Isotactic
B Saturation
C Inversion
D Throttling
The gas constant (R) is equal to the __________ of two specific heats.
A Product
B Sum
C Difference
D Ratio
As compared to air standard cycle, in actual working, the effect of variation in specific heats is to
A Increase maximum pressure and maximum temperature
B Reduce maximum pressure and maximum temperature
C Increase maximum pressure and decrease maximum temperature
D Decrease maximum pressure and increase maximum temperature
The index of compression ‘n’ tends to reach ratio of specific heats ‘y’ when
A Flow is uniform and steady
B Process is isentropic
C Process is isothermal
D Process is isentropic and specific heat does not change with temperature
The ratio of molar specific heats for mono-atomic gas is
A 1
B 1.4
C 1.67
D 1.87
In general, the specific heats of aqueous solutions __________ with increase in the concentration of the solute.
A Increase
B Decrease
C Remain unchanged
D None of these
One of the best-selling books 'Seven Heats of Highly Effective People' was written by :
A J.K. Rowlings
B R. Steven Covey
C Warren Buffet
D Bill Gates
Insolation heats up the land masses more quickly than the water bodies because ________
A Water is liquid
B Landmasses are solid
C Water needs more energy to get warm
D Rocks are bad conductors of heat
The radiation that heats earth's atmosphere comes from the
A Sun
B Earth
C Ionosphere
D Sun and earth
A single pass air heater is connected to a two pass unit. For the air flow rate and other conditions remaining the same, the film heat transfer co-efficient for air will vary in the ratio of
A 2
B 20.8
C 20.2
D 20.5

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