Mechanical Engineering - Steam Boilers and Engines

16.
The cylinder condensation or missing quantity may be reduced by
the efficient steam jacketing of the cylinder walls
superheating the steam supplied to the engine cylinder
keeping the expansion ratio small in each cylinder
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

17.
The actual vacuum in a condenser is equal to
barometric pressure + actual pressure
barometric pressure - actual pressure
gauge pressure + atmospheric pressure
gauge pressure - atmospheric pressure
Answer: Option
Explanation:
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18.
The function of a superheater is to heat the feed water by utilising the heat in the exhaust flue gases before leaving through the chimney.
Yes
No
Answer: Option
Explanation:
No answer description is available. Let's discuss.

19.
Willian's line follows the law (where b = A constant representing the shape of the Willian's line, a = Another constant i.e. no load consumption per hour, I.P. = Indicated power, and m = Steam consumption per hour)
I.P. = a x m + b
m = a + b x I.P.
I.P. = b x m + a
m = b/I.P. - a
Answer: Option
Explanation:
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20.
When the total heat of steam is h kJ/kg and the sensible heat of feed water is hf1 kJ/kg, then the factor of evaporation is given by
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.