Explore topic-wise MCQs in Power Plant Engg.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Power Plant Engg knowledge and support exam preparation. Choose a topic below to get started.

1.

STEAM_USED_TO_HEAT_WATER_COMES_FROM??$

A. boiler
B. turbine
C. condenser
D. external power source
Answer» C. condenser
Discussion
2.

Location of high pressure heaters

A. after the deaerator
B. before the deaerator
C. middle of deaerator
D. depends on pressure conditions
Answer» C. middle of deaerator
Discussion
3.

Why deaerator is not used in water cooled and moderated nuclear power plant?

A. radioactivity
B. not economical
C. not safe
D. not mechanically possible
Answer» B. not economical
Discussion
4.

Why deaerator is installed at a certain height from the pump?

A. to provide a net positive suction head
B. to maintain less pressure
C. to avoid leakage
D. to maintain pressure
Answer» B. to maintain less pressure
Discussion
5.

What chemicals are added for residual dissolved oxygen and carbon dioxide?

A. sodium sulphite
B. hydrazine
C. alum
D. all of the mentioned
Answer» E.
Discussion
6.

How dissolved oxygen and carbon dioxides are removed?

A. by allowing it to fall from height
B. by series of chemical reactions
C. by condensing feedwater
D. by heating feedwater to saturation temperature
Answer» E.
Discussion
7.

What do you mean by vent condenser?

A. a condensing unit
B. a temperature measuring instrument
C. a heat exchanger
D. dissolves oxygen
Answer» D. dissolves oxygen
Discussion
8.

What is the purpose of deaerator?

A. to remove the dissolved oxygen and carbon dioxide
B. to remove the dissolved nitrogen
C. to remove the dissolved impurities
D. to supply more oxygen to feedwater
Answer» B. to remove the dissolved nitrogen
Discussion
9.

Deaerator is an

A. closed heater
B. open heater
C. surface heater
D. none of the mentioned
Answer» C. surface heater
Discussion