Q. The crown of the fire box is made hemispherical in order to resist intense heat in the fire box.

View solution

Q. For maximum discharge through a chimney, the condition is that height of hot gas column producing the draught should be

View solution

Q. Water tube boilers are

View solution

Q. Which of the following is correct ? (where pa = Actual mean effective pressure, pm = Theoretical mean effective pressure, and K = Diagram factor)

View solution

Q. The working pressure range for a La-Mont boiler is

View solution

Q. The draught in locomotive boilers is produced by a

View solution

Q. The ratio of heat actually used in producing the steam to the heat liberated in the furnace is known as equivalent evaporation from and at 100° C.

View solution

Q. There is about 15 to 20% of coal saving when an economiser is used in a boiler.

View solution

Q. The principal function of a stop valve is to

View solution

Q. The length of Cornish boiler varies from

View solution

Q. The indicated thermal efficiency is defined as the

View solution

Q. In surface condensers, the condensate and the cooling water mixes up.

View solution

Q. A water level indicator is a device to indicate the exact water level in the boiler at any instant.

View solution

Q. Which of the following statement is correct ?

View solution

Q. Which of the following compound steam engine requires a smaller flywheel ?

View solution

Q. An economiser is generally placed between

View solution

Q. In fire tube boilers

View solution

Q. The efficiency of a boiler is defined as

View solution

Q. The ratio of the temperature rise of cooling water to the vacuum temperature minus inlet cooling water temperature is called

View solution

Q. A valve installed between the boiler and the feed pump is

View solution