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Mechanical Engineering Exam  >  Mechanical Engineering Tests  >  Topicwise Question Bank for Mechanical Engineering  >  Test: Steam Generators - 3 - Mechanical Engineering MCQ

Test: Steam Generators - 3 - Mechanical Engineering MCQ


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30 Questions MCQ Test Topicwise Question Bank for Mechanical Engineering - Test: Steam Generators - 3

Test: Steam Generators - 3 for Mechanical Engineering 2024 is part of Topicwise Question Bank for Mechanical Engineering preparation. The Test: Steam Generators - 3 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Steam Generators - 3 MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Steam Generators - 3 below.
Solutions of Test: Steam Generators - 3 questions in English are available as part of our Topicwise Question Bank for Mechanical Engineering for Mechanical Engineering & Test: Steam Generators - 3 solutions in Hindi for Topicwise Question Bank for Mechanical Engineering course. Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free. Attempt Test: Steam Generators - 3 | 30 questions in 90 minutes | Mock test for Mechanical Engineering preparation | Free important questions MCQ to study Topicwise Question Bank for Mechanical Engineering for Mechanical Engineering Exam | Download free PDF with solutions
Test: Steam Generators - 3 - Question 1
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The once through boiler is

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The Benson boiler employs forced circulation and has a unique characteristic of the absence of steam separating drum. The entire process of heating, steam formation and superheating is done in a continuous tube and accordingly it is called as once-through boiler.

Test: Steam Generators - 3 - Question 2
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A supercritical boiler has a pressure range of

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Test: Steam Generators - 3 - Question 3
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Blowing down of boiler water is the process to

Test: Steam Generators - 3 - Question 4
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Fusible plug is fitted in a boiler to
Test: Steam Generators - 3 - Question 5
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 Which of the following is not a safety valve for the boilers?
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Sliding type valve is used on steam engines for regulating flow of steam.

Test: Steam Generators - 3 - Question 6
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Which of the following fitting is a boiler mounting?
Test: Steam Generators - 3 - Question 7
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The basic purpose of boiler drum is to
Test: Steam Generators - 3 - Question 8
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Which one of the following safety devices is used to protect the boiler when the water level falls below a minimum level?
Detailed Solution for Test: Steam Generators - 3 - Question 8

Example of water tube boilers:
- Babcock-Wilcox boiler (straight tube)
- Stirling boiler(bent tube)
- Benson boiler
- LaMont boiler

Test: Steam Generators - 3 - Question 9
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A device which is used to drain off water from steam pipes without escape of steam is called
Test: Steam Generators - 3 - Question 10
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In thermal power plants, the deaerator is used mainly to
Test: Steam Generators - 3 - Question 11
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In steam generators, a stoker acts as one of the following devices. What is this device?
Test: Steam Generators - 3 - Question 12
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Which device is used in thermal power plants to reduce level of pollution?
Test: Steam Generators - 3 - Question 13
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Which one of the following boiler accessories does not need "flue-gas” for its operation?
Detailed Solution for Test: Steam Generators - 3 - Question 13

Economizer is used to preheat the feed water by using heat of flue gases. Air preheater is used to preheat the air by using heat of flue gases. Superheater is used to superheat the steam by using flue gases.
Injector does not uses flue gases during its operation.

Test: Steam Generators - 3 - Question 14
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A device used to heat feed water by utilizing the heat in exhaust flue gases before leaving through the chimney is called
Detailed Solution for Test: Steam Generators - 3 - Question 14

Economizer utilizes exhaust gases to preheat the feed water.

Test: Steam Generators - 3 - Question 15
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Which one of the following is NOT an accessory for the boiler?
Test: Steam Generators - 3 - Question 16
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The blow-off valve of a boiler helps to
Test: Steam Generators - 3 - Question 17
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The function of an economizer in a steam power plant is to
Detailed Solution for Test: Steam Generators - 3 - Question 17

An economizer is a device used to heat feed water by utilizing the heat in the exhaust Flue gases before leaving through the chimney, i.e., to increase the enthalpy of feed water.

Test: Steam Generators - 3 - Question 18
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An at temperature is used in same utility boilers
Detailed Solution for Test: Steam Generators - 3 - Question 18

At temperature is used to control degree of superheat.

Test: Steam Generators - 3 - Question 19
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Benson boiler is one of the boiler having
Detailed Solution for Test: Steam Generators - 3 - Question 19

Since Benson boiler is a super critical boiler hence no drum is required.

Test: Steam Generators - 3 - Question 20
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Blow down from boiler drum is carried with a view to
Test: Steam Generators - 3 - Question 21
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Once through boilers operate at
Detailed Solution for Test: Steam Generators - 3 - Question 21

One through boiler operates above the critical pressure of water hence they are known as supercritical boiler.

Test: Steam Generators - 3 - Question 22
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Once through boilers will not have
Detailed Solution for Test: Steam Generators - 3 - Question 22

Benson boiler is an example of once through boiler. Entire heating, from the steam formation to superheating is done in a single continuous tube.
But in this pump is required to make forced circulation of water.

Test: Steam Generators - 3 - Question 23
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The draught produced by a steam jet issuing from a nozzle placed in the chimney is called
Detailed Solution for Test: Steam Generators - 3 - Question 23

In steam jet draught, draught is produced by a steam jet issuing from a nozzle placed in the chimney. Steam jet draught was used in locomotive boilers.

Test: Steam Generators - 3 - Question 24
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Draught in locomotive boilers is produced by
Test: Steam Generators - 3 - Question 25
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Match List-I (Name of Boiler) with List-ll (Type) and select the correct answer using the codes given below the lists:
List-I
A. Stirling
B. Cochran
C. Lancashire
D. Benson
List-II
1. Bent water tube
2. Once through flow
3. Vertical fire tube
4. Inclined water tube
5. Horizontal fire tube
Codes:
    A B C D
(a) 2 5 4 1
(b) 1 3 5 2
(c) 2 3 5 1
(d) 1 5 4 2
Test: Steam Generators - 3 - Question 26
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Which of the following thermal power plants will have the highest overall thermal efficiency?
Test: Steam Generators - 3 - Question 27
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Performance of mechanical draft cooling tower is superior to natural draft with
Test: Steam Generators - 3 - Question 28
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The shape of the lid of a manhole in a boiler is
Test: Steam Generators - 3 - Question 29
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Which one of the following sequence indicates the correct order for flue gas flow in the steam power plant layout?
Detailed Solution for Test: Steam Generators - 3 - Question 29

The correct sequence is superheater, economizer, air preheater.

Test: Steam Generators - 3 - Question 30
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The main objective of boiler trial is
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