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
380. The energy of molecular motion appears as
A.Heat
B.Potential energy
C.Surface tension
D.Friction
381. A sudden fall in the barometer reading is a sign of approaching
A.Fine weather
B.Rains
C.Storm
D.Cold wave
382. The unit of universal gas constant is
A.Watts/°K
B.Dynes/°C
C.Ergs cm/°K
D.Erg/°K
383. Calorie is a measure of
A.Specific heat
B.Quantity of heat
C.Thermal capacity
D.Entropy
384. 1 kgf/cm2 is equal to
A.760 mm Hg
B.Zero mm Hg
C.735.6 mm Hg
D.1 mm Hg
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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