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Mechanical Engineering - Steam Boilers and Engines

Exercise : Steam Boilers and Engines - Section 1
31.
The fire tubes in a Scotch marine boiler are
horizontal
vertical
inclined
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
In a reciprocating steam engine, the heat energy in the steam is converted into mechanical work by the to and fro motion of the piston.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
The power of a boiler may be defined as
the ratio of heat actually used in producing the steam to the heat liberated in the furnace
the amount of water evaporated or steam produced in kg per kg of fuel burnt
the amount of water evaporated from and at 100° C into dry and saturated steam
the evaporation of 15.653 kg of water per hour from and at 100° C
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
When the circulation of water, in a boiler, is by a centrifugal pump, then the boiler is known as
internally fired boiler
externally fired boiler
natural circulation boiler
forced circulation boiler
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
The function of a safety valve is
to blow off steam when the pressure of steam inside the boiler exceeds the working pressure
to indicate the water level inside the boiler to an observer
to measure pressure of steam inside the steam boiler
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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