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

A. Decreasing initial steam pressure and temperature

B. Increasing exhaust pressure

C. Decreasing exhausts pressure

D. Increasing the expansion ratio

A. No drum

B. One drum

C. Two drums

D. Three drums

A. Corroding air heaters

B. Spontaneous combustion during coal storage

C. Facilitating ash precipitation

D. All of the above

A. The steam is expanded in nozzles only and there is a pressure drop and heat drop

B. The steam is expanded both in fixed and moving blades continuously

C. The steam is expanded in moving blades only

D. The pressure and temperature of steam remains constant

A. Pressure alone

B. Temperature alone

C. Pressure and temperature

D. Pressure and dryness fraction

A. Drooping characteristic

B. Linear characteristic

C. Rising characteristic

D. Flat characteristic

A. 21%

B. 23%

C. 30%

D. 40%

A. 21%

B. 23%

C. 30%

D. 40%

A. Induced draft fan and chimney

B. Induced draft fan and forced draft fan

C. Forced draft fan and chimney

D. Any one of the above

A. Equivalent evaporation

B. Factor of evaporation

C. Boiler efficiency

D. Power of a boiler