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49.

The dry saturated steam at very high pressure (150-200 kg/cm2) when throttled to atmosphere will become

A.	wet	B.	superheated
C.	remain dry saturated	D.	dry

50.

The dry saturated steam at very low pressure, (5-10 kg/cm2) when throttled to atmosphere will become

A.	wet	B.	superheated
C.	remain dry saturated	D.	dry

51.

The evaporation of 15.653 kg of water per hour from and at 100°C is called

A.	evaporative capacity	B.	factor of evaporation
C.	equivalent evaporation	D.	one boiler h.p.

52.

The fire tubes in, a Coarran and Scotish marine boiler are

A.	horizontal	B.	vertical
C.	inclined	D.	both horizontal and vertical

53.

The increase in pressure

A.	lowers the boiling point of a liquid	B.	raises the boiling point of a liquid
C.	.does not affect the boiling point of a liquid	D.	reduces its volume

54.

The latent heat of steam with increase of pressure

A.	remains same	B.	increases
C.	decreases	D.	behaves unpredictably

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