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Steam Boilers and Engines problems
1. The draught may be produced by a
Options
A. mechanical fan
B. chimney
C. a steam jet
D. all of these
Show Answer
Scratch Pad
Discuss
Correct Answer: all of these
2. The clearance in the engine cylinder has no effect on the steam consumption.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
3. The fire tubes in a Locomotive boiler has __________ diameter.
Options
A. 4.75 mm
B. 5.47 mm
C. 7.45 mm
D. 47.5 mm
Show Answer
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Discuss
Correct Answer: 47.5 mm
4. The high pressure and low pressure cylinders in a Woolf type compound engine are regarded as having cranks
Options
A. 180° to each other
B. 90° to each other
C. 0° to each other
D. none of these
Show Answer
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Discuss
Correct Answer: 180° to each other
5. The ratio of heat equivalent to brake power to the energy supplied in steam is known as
Options
A. mechanical efficiency
B. overall efficiency
C. indicated thermal efficiency
D. brake thermal efficiency
Show Answer
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Discuss
Correct Answer: brake thermal efficiency
6. A condenser in a steam power plant
Options
A. increases expansion ratio of steam
B. reduces back pressure of steam
C. reduces temperature of exhaust steam
D. all of these
Show Answer
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Discuss
Correct Answer: all of these
7. In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder whereas the last expansion is completed in low pressure cylinder. The diameter of high pressure cylinder is __________ the lowpressure cylinder.
Options
A. equal to
B. less than
C. more than
Show Answer
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Discuss
Correct Answer: less than
8. The rate of flow of steam is __________ in case of fire tube boilers.
Options
A. less
B. more
Show Answer
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Discuss
Correct Answer: less
9. A condenser where circulating water flows through tubes which are surrounded by steam, in known as
Options
A. surface condenser
B. jet condenser
C. barometric condenser
D. evaporative condenser
Show Answer
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Discuss
Correct Answer: surface condenser
10. The fittings mounted on the boiler for its proper and safe functioning is a
Options
A. water level indicatior
B. pressure gauge
C. safety valve
D. all of these
Show Answer
Scratch Pad
Discuss
Correct Answer: all of these
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More in Mechanical Engineering:
Automobile Engineering
Compressors, Gas Dynamics and Gas Turbines
Engineering Materials
Engineering Mechanics
Heat Transfer, Refrigeration and Air Conditioning
Hydraulic Machines
Hydraulics and Fluid Mechanics
IC Engines and Nuclear Power Plants
Industrial Engineering and Production Management
Machine Design
Production Engineering
Steam Boilers and Engines
Steam Nozzles and Turbines
Strength of Materials
Theory of machines
Thermodynamics
Workshop Technology