Related Questions

According to fan laws, at constant speed and capacity, the pressure and power vary
A Directly as the air or gas density
B Inversely as square root of density
C Inversely as density
D As square of density
According to fan laws, at constant weight of air or gas, the speed, capacity and pressure vary
A Directly as the air or gas density
B Inversely as square root of density
C Inversely as density
D As square of density
According to fan laws, for fans having constant wheel diameter, the air or gas capacity varies
A Directly as fan speed
B Square of fan speed
C Cube of fan speed
D Square root of fan speed
According to fan laws, for fans having constant wheel diameter, the pressure varies
A Directly as fan speed
B Square of fan speed
C Cube of fan speed
D Square root of fan speed
According to fan laws, for the fans having constant wheel diameters, the power demand varies
A Directly as fan speed
B Square of fan speed
C Cube of fan speed
D Square root of fan speed
The capacity of induced draft fan compared to forced draft fan in a boiler is
A Same
B More
C Less
D Less or more depending on size of boiler
For the same draught produced the power of induced draught fan as compared to forced draught fan is
A less
B more
C same
D not predictable
If a man reduces the selling price of a fan from Tk. 400 to Tk. 380, his loss increases by 2%. The cost price of the fan is:
A Tk.480
B Tk.600
C Tk. 1000
D Tk. 1060
Power requirement of fans having constant wheel diameter varies __________ fan speed.
A As square of
B Directly as
C As cube of
D None of these
According to Regnault's law, the specific heat at constant pressure (cp) and specific heat at constant volume (cv) _________ with the change in pressure and temperature of the gas.
A Change
B Do not change
C Both (A) and (B)
D None of these

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