Exercise: Steam Boilers And Engines

Questions for: Steam Boilers And Engines

The principal function of a stop valve is to
A:
control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required
B:
empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler
C:
put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit
D:
increase the temperature of saturated steam without raising its pressure
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
A valve installed between the boiler and the feed pump is
A:
blow off cock
B:
feed check valve
C:
steam stop valve
D:
none of these
Answer: B
No answer description is available. Let's discuss.
📖
📝
💬
👁️
The ratio of the temperature rise of cooling water to the vacuum temperature minus inlet cooling water temperature is called
A:
condenser efficiency
B:
vacuum efficiency
C:
nozzle efficiency
D:
boiler efficiency
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
The efficiency of a boiler is defined as
A:
ratio of heat actually used in producing steam to the heat liberated in the furnace
B:
ratio of the mass of steam produced to the mass of total water supplied in a given time
C:
ratio of the heat liberated in the furnace to the heat actually Used in producing steam
D:
none of the above
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
In fire tube boilers
A:
water passes through the tubes which are surrounded by flames and hot gases
B:
the flames and hot gases pass through the tubes which are surrounded by water
C:
forced circulation takes place
D:
none of these
Answer: B
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Ad Slot (Above Pagination)
Quiz