Related Questions

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 heating capacity of continuous reheating furnace depends upon the
A Hearth area and furnace temperature
B Emissivity of the stock
C Ratio of wall surface to stock surface
D All of the above
The thermal efficiency of a steel slab reheating furnace (walking beam type) may be about __________ percent.
A 15
B 40
C 70
D 85
Width of the coke oven towards coke side is slightly more than that on pusher side to
A Facilitate easy discharging of coke as it swells during carbonisation
B Facilitate uniform heating of the oven
C Increase the output of the coke
D None of these
In open cycle turbojet engines used in military aircraft, reheating the exhaust gas from the turbine by burning, more fuel is used to increase the
A Thrust and range of aircraft
B Efficiency of the engine
C Both (A) and (B)
D None of these
Reheating in a multistage expansion gas turbine ________ compressor work.
A Has no effect on
B Decreases
C Increases
D None of these
Reheating in a gas turbine
A Increases the thermal efficiency
B Increases the compressor work
C Increases the turbine work
D Decreases the thermal efficiency
The main purpose of reheating in gas turbine is to
A Increase temperature
B Reduce turbine size
C Increase power output
D Increase speed
Reheating in gas turbine results in
A Increase of work ratio
B Decrease of thermal efficiency
C Decrease of work ratio
D Both (A) and (B) above
Reheating in multistage expansion gas turbine results in
A High thermal efficiency
B Reduction in compressor work
C Decrease of heat loss in exhaust
D Maximum work output

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