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Discussion
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Mechanical Engineering
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Heat Transfer, Refrigeration and Air Conditioning
See What Others Are Saying!
Question
The temperature rise, between the condenser outlet and expansion valve in ammonia vapour compression system, should be as low as possible.
Options
A. Yes
B. No
Correct Answer
Yes
More questions
1. The amplitude is always __________ radius of the circle.
Options
A. equal to
B. less than
C. greater than
Show Answer
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Correct Answer: equal to
2. The spark ignition engines are governed by
Options
A. hit and miss governing
B. qualitative governing
C. quantitative governing
D. combination of (b) and (c)
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Correct Answer: quantitative governing
3. Slick is used for repairing and finishing the mould.
Options
A. Correct
B. Incorrect
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Correct Answer: Correct
4. The metal patterns as compared to wooden patterns require less
Options
A. shrinkage allowance
B. machining allowance
C. draft allowance
D. distortion allowance
Show Answer
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Correct Answer: draft allowance
5. In iron, the presence of carbon in free form is called graphite.
Options
A. Agree
B. Disagree
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Correct Answer: Agree
6. A pattern is used to make the mould cavity for pouring the molten metal for casting.
Options
A. Yes
B. No
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Correct Answer: Yes
7. A safety valve usually employed with stationary boilers is
Options
A. lever safety valve
B. dead weight safety valve
C. high steam and low water safety valve
D. all of these
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Correct Answer: all of these
8. Which of the following statement is correct regarding normal cetaine?
Options
A. It is a standard fuel used for knock rating of diesel engines.
B. Its chemical name is normal-hexadecane.
C. It has long carbon chain structure.
D. all ofthe above
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Correct Answer: all ofthe above
9. A molecule consisting of one atom is known as
Options
A. monoatomic
B. diatomic
C. triatomic
D. polyatomic
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Correct Answer: monoatomic
10. The consumable electrode is used in
Options
A. carbon arc welding
B. submerged arc welding
C. TIG arc welding
D. MIG arc welding
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Correct Answer: MIG arc welding
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