Steam Boilers Engines Nozzles And Turbines(Engineering > Mechanical Engineering ) Questions and Answers
Question 1. O₂ content in atmospheric air on volume basis is
21 %
23 %
30 %
40 %
Explanation:-
Answer: Option A. -> 21 %
Question 2. O₂ content in atmospheric air on weight basis is
21 %
23 %
30 %
40 %
Explanation:-
Answer: Option B. -> 23 %
Question 3. O₂ content in atmospheric air on weight basis is
21 %
23 %
30 %
40 %
Explanation:-
Answer: Option B. -> 23 %
Question 4. O₂ content in atmospheric air on volume basis is
21 %
23 %
30 %
40 %
Explanation:-
Answer: Option A. -> 21 %
Question 5. The three "ts" for good combustion are
Temperature, time, and turbulence
Total air, true fuel, and turbulence
Thorough mixing, total air and temperature
Total air, time, and temperature
Explanation:-
Answer: Option A. -> Temperature, time, and turbulence
Question 6. 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 × m + b
m = a + b × I.P.
I.P. = b × m + a
m = (b/I.P.) - a
Explanation:-
Answer: Option B. -> m = a + b × I.P.
Question 7. O₂ content in atmospheric air on weight basis is
21 %
23 %
30 %
40 %
Explanation:-
Answer: Option B. -> 23 %
Question 8. O₂ content in atmospheric air on volume basis is
21 %
23 %
30 %
40 %
Explanation:-
Answer: Option A. -> 21 %
Question 9. O₂ content in atmospheric air on weight basis is
21 %
23 %
30 %
40 %
Explanation:-
Answer: Option B. -> 23 %
Question 10. O₂ content in atmospheric air on volume basis is