200 Important Electrical Power Generation MCQ Question and Answer | PDF Free Download
1.In which part of the thermal power plant, the steam pressure is less than that of atmosphere?
- ABoiler
- BTurbine
- C Superheater
- DCondenser
2.The function of Condenser in a steam power plant is to
- ACondense the large volume of steam to water to be used as boiler feed water
- BReceive the large volume of steam exhausted from the steam turbine
- CMaintain pressure below atmospheric so that maximum heat energy can be extracted from steam
- DAll of the above
3.Evaporative type of condenser has
- ASteam in pipes surrounded by water
- BWater in pipes surrounded by steam outside
- CSteam and cooling water mixed to give condensate
- DNone of the above
4.The purpose of the boiler feed pump is to
- APump hot air into the boiler
- BPump pulverised coal into the boiler
- CPump out steam from the boiler
- DPump water into the boiler
5.The function of air pumps in a condenser is to
- ARemove water
- BAir leaking in to the condenser and maintain vacuum
- C
- Maintain atmospheric pressure in the condenser
- DBoth (a) and (b)
6.Wet air pump is to remove
- ACondensate only
- BAir only
- CBoth Air and Condensate
- DVapour from the condenser
7.In a steam power plant cooling towers are used for
- ACooling condenser outlet water
- BCooling exhaust steam
- CCooling feed water
- DAll of the above
8.Spray ponds are used for cooling warm water coming out of condenser in
- ALarge power plants
- BMedium power plants
- CSmall power plants
- DBoth in medium and large power plants
9.In which of the following steam turbines the back pressure will be below the atmospheric one?
- ANon-condensing turbine
- BCondensing turbine
- CTopping turbine
- DNone of the above
11.The modern steam turbines are
- AReaction turbines
- BImpulse turbines
- CImpulse reaction turbines
- DNone of the above
12.The largest size of steam turbine installed in India is
- A100 MW
- B250 MW
- C500 MW
- D1,000 MW
13.As compared to steam at entry to the turbine which of the following will be larger at exit?
- AFlow rate
- BPressure
- CSpecific volume
- DSpecific enthalpy
14.A 200 MW steam power plant will consume nearly _____________ tonnes of coal per day
- A1,000
- B2,000
- C4,000
- D7,500
15.The coal of the lowest calorific value is
- AAnthracite
- BBituminous coal
- CLignite
- DSteam coal
16.The coal having highest calorific value is
- AAnthracite
- BBituminous
- CLignite
- DPeat
17.Coal used in thermal power plants is also known as
- ASoft coal
- BSteam coal
- CCharcoal
- DCoke
18.Which of the following is considered to be superior quality of coal?
- ABituminous
- BCoke
- CLignite
- DPeat
19.The average ash content in Indian coals is about
- A5%
- B10%
- C20%
- D30%
20.The coal that has highest ash content is
- ALignite
- BCoking coal
- CBituminous coal
- DSteam coal