# Test: Power Plant Engineering- 1

## 25 Questions MCQ Test Mechanical Engineering SSC JE (Technical) | Test: Power Plant Engineering- 1

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Attempt Test: Power Plant Engineering- 1 | 25 questions in 50 minutes | Mock test for Mechanical Engineering preparation | Free important questions MCQ to study Mechanical Engineering SSC JE (Technical) for Mechanical Engineering Exam | Download free PDF with solutions
QUESTION: 1

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QUESTION: 2

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QUESTION: 3

### The environmental pollution is highest for.

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QUESTION: 4

What is the range of Thermal efficiency in Brayton cycle?

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QUESTION: 5

If helium is used instead of air the efficiency of brayton cycle.

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QUESTION: 6

The relationship between work ratio and back work ratio (BWR) is

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QUESTION: 7

isoentropic efficiency in a turbine is considered to account for

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QUESTION: 8

In Rankine cycle which of the following is neglisible compared to others.

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QUESTION: 9

The formula for specific fuel consumbtion in kg/ kw hr is

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QUESTION: 10

Due to superheating dryness fraction in Rankine cycle.

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QUESTION: 11

Bleeding of steam occurs in

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QUESTION: 12

In a Rankine cycle if boiler pressure is increased the efficiency of the cycle

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QUESTION: 13

Which of the following increases cycle efficiency

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QUESTION: 14

Reciprocating compressor is used for.
i. High pressure ratio
ii. High Discharge
iii. Small Pressure ratio
iv. small discharge

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QUESTION: 15

If clearance volume decreases The volumetric efficiency of a reciprocating compressor

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QUESTION: 16

The net work output is minimum during compression for

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QUESTION: 17

For a 3 stage compression from 1 bar to 27 bar the intermediate pressure at last stage for perfect intercooling is

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QUESTION: 18

Which of the following blades gives maximum pressure ratio

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Forward-curved blades produce higher pressure ratio.

QUESTION: 19

In which of the following compressors air flows radially.

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QUESTION: 20

If drop in enthalpy in moving blades is 150 kJ and in fixed blades in 300 kJ. The degree of reaction is

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QUESTION: 21

Surging in a compressor means

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QUESTION: 22

For supersonic flow a diverzing passage behaves as.

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QUESTION: 23

In a converzing diverzing nozzle at chocked condition the relation between throat temperature (T2) and Inlet temperature (T1) is

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QUESTION: 24

The size of which of the following turbine is largest.

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QUESTION: 25

The cross section between blade passage in a simple impulse turbine is

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