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PPS semi Q3

Authored by Vince Clavenes

Engineering

12th Grade

PPS semi Q3
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14 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of a steam turbine in power generation?

To increase steam pressure

To convert thermal energy into mechanical work

To convert mechanical energy into thermal energy

To store electrical energy

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does thermal efficiency in a steam turbine system indicate?

The speed of the turbine

The total energy lost in the system

The ratio of work output to heat energy supplied

The amount of steam produced

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method is used to calculate thermal efficiency?

Heat balance method

Mechanical efficiency method

Isentropic efficiency method

Overall efficiency method

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is isentropic efficiency used for?

To measure the ideal performance of a turbine

To assess mechanical losses

To calculate the total energy output

To determine the steam quality

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which factor does NOT affect steam turbine efficiency?

Steam conditions

Load variations

Ambient temperature

Turbine design

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to turbine efficiency when steam quality is low?

It doubles

It decreases

It remains unchanged

It increases significantly

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the overall plant efficiency a combination of?

Only the boiler efficiency

Only the turbine efficiency

The efficiencies of all major components

The generator efficiency alone

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