Mechanical Engineering Questions And Answers :: Steam Boilers: part3



Mechanical Engineering : Steam Boilers QUESTIONS AND ANSWERS :: part3 : 1 to 5

Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

1.Efficiency of a thermal cycle increases by

regeneration
reheating of steam
both (a) and (b)
cooling of steam
none of the above.

2.Efficiency of rankine cycle can be increased by

decreasing initial steam pressure and temperature
increasing exhaust pressure
decreasing exhaust pressure
increasing the expansion ratio
increasing number of regenerative heaters.

3.Cochran boiler is a

horizontal fire-tube boiler
horizontal water-tube boiler
veritcal water-tube boiler
vertical fire tube boiler
forced circulating boiler.

4.The change in internal energy in steam engines equals to

work done during the rankine cycle ;
work done during compression.
work done during adiabatic expansion
change in enthalpy
none of the above.

5.Which of the following gases has the highest calorific value

producer gas
coal gas.
water gas
blast furnace gas
coke oven gas.

More Steam Boilers QUESTIONS AND ANSWERS available in next pages

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