Mechanical Engineering Questions And Answers :: Steam Boilers: part6



Mechanical Engineering : Steam Boilers QUESTIONS AND ANSWERS :: part6 : 21 to 25

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

21.02 content in atmospheric air on volume basis is

21%
23%
30%
40%
70%.

22.In locomotives, the drought is produced by

chimney
induced draft fan
both combined (a) and (b)
steam jet drought
none of the above.

23.In designing air preheater, the important design consideration is that

approach temperature should be as low as possible
handling and maintenance should be easier
heat transfer area should be optimum
stack gases should not be cooled to the dew point
none of the above.

24.The temperature of flue gases at air heater outlet should be

100�C
above dew-point temperature of flue gases
below dew-point temperature of flue gases
less than wet bulb temperature of flue gases
above wet bulb temperature of flue gases.

More Steam Boilers QUESTIONS AND ANSWERS available in next pages

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