STEAM TURBINES

STEAM TURBINES

University

50 Qs

quiz-placeholder

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STEAM TURBINES

STEAM TURBINES

Assessment

Quiz

Education

University

Hard

Created by

BIBIN CHIDAMBARANATHAN

Used 23+ times

FREE Resource

50 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The pressure compounded impulse turbine as compared to velocity compounded turbine require __________ number of stages.

Same

Less

More

None of these

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

In an impulse turbine.......

The steam is expanded in nozzles only and there is a pressure drop and heat drop

The steam is expanded both in fixed and moving blades continuously

The steam is expanded in moving blades only

The pressure and temperature of steam remains constant

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The person's reaction turbine has........

Only moving blades

Only fixed blades

Identical moving and fixed blades

Fixed and moving blades of different shape

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The stage efficiency (ηs)is given by ( where ηb=blading efficiency and ηn =nozzle efficiency )........

ηb/ηn

ηn/ηb

ηb.ηn

ηn/ηb

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The reheating of steam in a turbine........

Increases the work done through the turbine

Increases the efficiency of the turbine

Reduces wear on the blades

All of the above

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The thermal efficiency of a steam turbine is......than that of steam engine

Lower

Higher

Same

None of the above

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Da-laval turbines are mostly used.......

Where low speeds are required

For small power purposes and and low speeds

For small power purposes and and high speeds

For large power purposes

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