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

A. Lancashire boiler

B. Babcock and Wilcox boiler

C. Locomotive boiler

D. Cochran boiler

A. Locomotive boiler

B. Cochran boiler

C. Cornish boiler

D. Babcock and Wilcox boiler

A. Water passes through the tubes which are surrounded by flames and hot gases

B. The flames and hot gases pass through the tubes which are surrounded by water

C. Forced circulation takes place

D. None of these

A. Supplied by same manufacturer loose and assembled at site

B. Supplied mounted on a single base

C. Purchased from several parties and packed together at site

D. Packaged boiler does not exist

A. 30 MW

B. 60 MW

C. 100 MW

D. 500 MW

A. 0.528

B. 0.546

C. 0.577

D. 0.582

A. Does not change

B. Increases

C. Decreases

D. None of these

A. $$\frac{{{\text{h}} - {{\text{h}}_{{\text{f}}1}}}}{{2257}}$$

B. $$\frac{{{\text{h}} + {{\text{h}}_{{\text{f}}1}}}}{{2257}}$$

C. $$\frac{{{\text{h}} \times {{\text{h}}_{{\text{f}}1}}}}{{2257}}$$

D. None of these

A. Mass of the steam discharged increases

B. Entropy and specific volume of the steam increases

C. Exit velocity of steam reduces

D. All of these

A. Increases

B. Decreases

C. Remain unaffected

D. First increases and then decreases