Very high pressure boilers are usually _____________ boilers?

Related Mcqs:

An improved and fuel efficient version of the pusher type reheating furnace is the ______________ furnace?

A. Walking beam B. Shaft C. Tunnel D. Rotary hearth...

The electric furnace in which heat is produced by a combination of induced current and skin effect is called _____________ furnace?

A. Arc B. Resistance C. Low frequency induction D. High frequency induction...

Neutral atmosphere is maintained in a/an ____________ furnace?

A. Cold rolled steel coil annealing B. Open hearth C. Soaking pit D. Walking beam reheating...

In a furnace employing forced draught as compared to induced draught______________________?

A. Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced B. The fan operates hot and hence blades are liable to corrosion and erosion C. Positive pressure exists in the furnace D. None of these...

Overfire burning in a furnace is a phenomenon characterised by____________________?

A. Supply of excess fuel B. Supply of excess air C. Burning carbon monoxide and other incombustible in upper zone of furnace by supplying more air D. None of these...