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Generation of Electrical Energy

Generation of Electrical Energy
Which of the following material is used as a moderator in nuclear power plant?

Calcium
Graphite
Plutonium
Boron

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Generation of Electrical Energy
The function of a moderator in a nuclear reactor is

To speed up the slow moving electrons
To transfer heat produced inside the reactor to a heat exchanger
To slow down the fast moving electrons
To start the chain reaction

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Generation of Electrical Energy
The modern steam turbine are

Impulse turbine
None of these
Impulse-reaction turbines
Reaction turbine

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Generation of Electrical Energy
If the load factor of a power station increases, the cost of per unit generation will

Decreases
Increases
Remains same
Data incomplete

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Generation of Electrical Energy
Parson's turbine is

pressure compounded steam turbine
multi wheel reaction steam turbine
simple single wheel, impulse steam turbine
simple single wheel reaction steam turbine

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Generation of Electrical Energy
Economiser improve the boiler efficiency by

4 to 10%
13 to 15 %
10 to 12 %
1 to 5 %

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