Steam Boilers, Engines, Nozzles and Turbines Multiple Choice Questions

Steam Boilers, Engines, Nozzles and Turbines

Question 1.

The expansion of steam in a nozzle follows

A.

 Carnot cycle

B.

 Rankine cycle

C.

 Joule cycle

D.

 Stirling cycle

Explanation :

Explanation Not Provided

Question 2.

In a uniflow engine

A.

 Steam enters and exhausts through the same port

B.

 Steam enters at one end and exhausts at the centre

C.

 Steam enters at the centre and exhausts at the other end

D.

 None of the above

Explanation :

Explanation Not Provided

Question 3.

The mechanical draught _________ with the amount of smoke.

A.

 Increases

B.

 Decreases

C.

 Does not effect

D.

 None of these

Explanation :

Explanation Not Provided

Question 4.

Gradually increasing temperature of flue gases at inlet to chimney for given steam outputs is an indication of

A.

 Higher effectiveness of boiler

B.

 High calorific value coal being burnt

C.

 Fouling of heat transfer surfaces

D.

 Raising of steam temperature

Explanation :

Explanation Not Provided

Question 5.

A _________ in a boiler is used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit.

A.

 Blow off cock

B.

 Fusible plug

C.

 Stop valve

D.

 Safety valve

Explanation :

Explanation Not Provided