379. During throttling process
A.Heat exchange does not take place
B.No work is done by expanding steam
C.There is no change of internal energy of steam
D.All of the above

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380. The energy of molecular motion appears as
A.Heat
B.Potential energy
C.Surface tension
D.Friction

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381. A sudden fall in the barometer reading is a sign of approaching
A.Fine weather
B.Rains
C.Storm
D.Cold wave

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382. The unit of universal gas constant is
A.Watts/°K
B.Dynes/°C
C.Ergs cm/°K
D.Erg/°K

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383. Calorie is a measure of
A.Specific heat
B.Quantity of heat
C.Thermal capacity
D.Entropy

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384. 1 kgf/cm2 is equal to
A.760 mm Hg
B.Zero mm Hg
C.735.6 mm Hg
D.1 mm Hg

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385. Barometric pressure is equal to
A.760 mm Hg
B.Zero mm Hg
C.735.6 min Hg
D.1 min Hg

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