Steam Boilers, Engines, Nozzles And Turbines MCQ Questions & Answers | Mechanical Engineering

Home / Mechanical Engineering / Steam Boilers, Engines, Nozzles And Turbines

Section 1 Section 2 Section 3 Section 4 Section 5

31.
In locomotives, the draught is produced by

A. Chimney

B. Induced draft fan

C. Both combined (A) and (B)

D. Steam jet draught

Answer & Solution Discuss in Board Save for Later

32.
In designing air preheaters, the important design consideration is that

A. Approach temperature should be as low as possible

B. Handling and maintenance should be easier

C. Heat transfer area should be optimum

D. Stack gases should not be cooled to the dew point

Answer & Solution Discuss in Board Save for Later

33.
Which of the following are boiler accessories?

A. Economizer

B. Superheater

C. Both (A) and (B)

D. None of these

Answer & Solution Discuss in Board Save for Later

34.
The selection of type and size of a steam boiler depends upon

A. The power required and working pressure

B. The geographical position of the power house

C. The fuel and water available

D. All of the above

Answer & Solution Discuss in Board Save for Later

35.
An economiser is installed in a boiler primarily to

A. Superheat the steam

B. Reduce fuel consumption

C. Increase steam pressure

D. All of these

Answer & Solution Discuss in Board Save for Later

36.
A fusible plug is fitted in small boilers in order to

A. Avoid excessive build up of pressure

B. Avoid explosion

C. Extinguish fire if water level in the boiler falls below alarming limit

D. Control steam dome

Answer & Solution Discuss in Board Save for Later

37.
Presence of moisture in fuel oil would

A. Keep the burner tips cool

B. Aid in proper combustion

C. Because sputtering, possibly extinguishing flame

D. Clean the nozzles

Answer & Solution Discuss in Board Save for Later

38.
Which of the following varieties of coals is mostly used in steam boilers?

A. Non-coking bituminous coal

B. Brown coal

C. Peat

D. None of the above

Answer & Solution Discuss in Board Save for Later

39.
Steam turbines are used for

A. Large marine propulsion

B. Electric power generation

C. Direct drive of fans, compressors, pumps

D. All of these

Answer & Solution Discuss in Board Save for Later

40.
For the same length of stroke and speed of crankshaft, the piston speed for a double acting steam engine is _________ the piston speed of single acting steam engine.

A. Equal to

B. Twice

C. Three times

D. Four times

Answer & Solution Discuss in Board Save for Later

1 2 3 4 5 6 7 8 9 10

Steam Boilers, Engines, Nozzles And Turbines MCQ Questions & Answers | Mechanical Engineering

31. In locomotives, the draught is produced by

Answer & Solution

32. In designing air preheaters, the important design consideration is that

Answer & Solution

33. Which of the following are boiler accessories?

Answer & Solution

34. The selection of type and size of a steam boiler depends upon

Answer & Solution

35. An economiser is installed in a boiler primarily to

Answer & Solution

36. A fusible plug is fitted in small boilers in order to

Answer & Solution

37. Presence of moisture in fuel oil would

Answer & Solution

38. Which of the following varieties of coals is mostly used in steam boilers?

Answer & Solution

39. Steam turbines are used for

Answer & Solution

40. For the same length of stroke and speed of crankshaft, the piston speed for a double acting steam engine is _________ the piston speed of single acting steam engine.

Answer & Solution

Read More Section(Steam Boilers, Engines, Nozzles and Turbines)

31.
In locomotives, the draught is produced by

32.
In designing air preheaters, the important design consideration is that

33.
Which of the following are boiler accessories?

34.
The selection of type and size of a steam boiler depends upon

35.
An economiser is installed in a boiler primarily to

36.
A fusible plug is fitted in small boilers in order to

37.
Presence of moisture in fuel oil would

38.
Which of the following varieties of coals is mostly used in steam boilers?

39.
Steam turbines are used for

40.
For the same length of stroke and speed of crankshaft, the piston speed for a double acting steam engine is _________ the piston speed of single acting steam engine.