# Coal Power Plant MCQs

Electrical Engineering XYZ MCQs on Coal Power Plant. Dive into key concepts, operation, and environmental impacts of coal-powered generation. Ideal for students and professionals seeking to enhance their understanding of traditional energy systems. Test your knowledge and prepare for exams effectively with our comprehensive questions!

## The basic purpose of precipitator in a steam power station is to

The basic purpose of precipitator in a steam power station is to:

1. Raise the temperature of superheater
2. Collect dust
3. Both of these
4. None of these

## The input to the superheater in a steam power station is

The input to the superheater in a steam power station is:

1. Cold water
2. Hot water
3. Steam
4. Superheated steam

## After passing through turbine

After passing through turbine:

1. Its temperature increases, but pressure decreases
2. Both temp and pressure increase
3. Temp decrease, but pressure increases
4. Both temperature and pressure decrease

Correct answer: 4. Both temperature and pressure decrease

## The condenser in steam power plant condenses the steam coming out from

The condenser in steam power plant condenses the steam coming out from:

1. HP turbine
2. IP turbine
3. LP turbine
4. All of these

## The metallic structure which supports fuel in the furnace of steam power station

The metallic structure which supports fuel in the furnace of steam power station:

1. Grate
2. Stocker
3. Preheater
4. Fire-tube boiler

## The equipment which supplies air to the steam power station

The equipment which supplies air to the steam power station:

1. Economizer
2. Draught
3. Grate
4. Stocker

The correct statement about cooling water used in the condenser of coal power station:

1. The cooler the water, the lower will be the efficiency
2. The cooler the water, the higher will be the efficiency
3. The temperature of the water does not impact the efficiency
4. Cooling water should never be used in the condenser

Correct answer: 2. The cooler the water, the higher will be the efficiency

The steam in reaction turbine ________ expands in stationery nozzles:

1. Fully
2. Partially

The efficiency of modern generators in coal power stations can be up to:

1. 44%
2. 67%
3. 89%
4. 96%

## The correct order in which turbines are installed in a steam power station

a. The correct order in which turbines are installed in a steam power station:

1. High pressure, then medium pressure, then low pressure
2. High pressure, then low pressure, then medium pressure
3. Low pressure, then high pressure, then medium pressure
4. Low pressure, then medium pressure, then high pressure

Correct answer: 1. High pressure, then medium pressure, then low pressure

## The condenser in steam power plant condenses the steam coming out from

b. The condenser in steam power plant condenses the steam coming out from:

1. Boiler
2. Turbine
3. Economizer
4. None of these

## The preferred type of boiler is steam power stations prefer

c. The preferred type of boiler is steam power stations prefer:

1. Water tube boiler
2. Fire tube boiler
3. Drum boiler
4. Depends on power capacity

Correct answer: 1. Water tube boiler

## Microturbines are connected to generators via

Microturbines are connected to generators via:

1. Direct connection
2. Using solid state components
3. Pelton turbines
4. None of above

Correct answer: 2. Using solid state components

The largest nuclear power plant of the world is in:

2. Mexico
3. Japan
4. USA

Good quality coals contain ____________ percentage of carbaon and _______ moisture content:

1. Higher, High
2. Higher, Low
3. Lower, High
4. Lower, Low