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Discussion
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Mechanical Engineering
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Hydraulics and Fluid Mechanics
See What Others Are Saying!
Question
The pressure of the liquid flowing through the divergent portion of a venturimeter
Options
A. remains constant
B. increases
C. decreases
D. depends upon mass of liquid
Correct Answer
decreases
More questions
1. A basic difference between the spark ignition engine and the Diesel engine is that the
Options
A. Diesel engine compresses air alone instead of an air-fuel mixture
B. air temperature ignites the fuel in the Diesel engine
C. fuel is sprayed into the combustion chamber in the Diesel engine as the piston nears T.D.C. on the compression stroke
D. all of the above
Show Answer
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Discuss
Correct Answer: all of the above
2. In a line organisation
Options
A. responsibility of each individual is fixed
B. discipline is strong
C. quick decisions are taken
D. all of these
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Correct Answer: all of these
3. The portion of the blast furnace below its widest cross-section is called
Options
A. hearth
B. stack
C. bosh
D. throat
Show Answer
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Discuss
Correct Answer: bosh
4. The wave length corresponding to the maximum energy is inversely proportional to the absolute temperature. This statement is called Planck's law.
Options
A. Yes
B. No
Show Answer
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Correct Answer: No
5. In a reciprocating air compressor, the compression work per kg of air
Options
A. increases as clearance volume increases
B. decreases as clearance volume increases
C. is independent of clearance volume
D. increases as clearance volume decreases
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Correct Answer: is independent of clearance volume
6. The adhesiveness is the property of a sand due to which
Options
A. it evolves a great amount of steam and other gases
B. the sand grains stick together
C. it cling to the sides of a moulding box
D. none of these
Show Answer
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Correct Answer: it cling to the sides of a moulding box
7. The pressure at the outlet of a refrigerant compressor is called
Options
A. suction pressure
B. discharge pressure
C. critical pressure
D. back pressure
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Correct Answer: discharge pressure
8. The rato of energy transferred by convection to that by conduction is called
Options
A. Stanton number
B. Nusselt number
C. Biot number
D. Peclet number
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Correct Answer: Nusselt number
9. A vapour absorption refrigeration system
Options
A. gives noisy operation
B. gives quiet operation
C. requires little power consumption
D. cools below 0° C
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Correct Answer: gives quiet operation
10. The service brakes employed in cars are generally operated
Options
A. mechanically
B. hydraulically
C. pneumatically
D. none of these
Show Answer
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Discuss
Correct Answer: hydraulically
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