Centrifugal blowers can supply
A.Large volumes of air at low pressures
B.Large volumes of air at high pressures
C.Small volumes of air at high pressures
D.Small volumes of air at low pressures
E.None of the above
Category: Heat Engines Mcqs
A gas turbine plant operates between 1 ata and 9 ata with minimum and maximum cycle temperature of 25?C and 1000?C. A two stage compressor is provided with perfect intercooling and work is equally divided between the two stages. The intermediate pressure will be
A.3 ata
B.4 ata
C.5 ata
D.5.5 ata
E.7.5 ata
If engines of different horse power, rpm, cylinder dimensions are to be compared for their performance, the parameter of comparison could be
A.Unit speed
B.Fuel consumption
C.Specific speed
D.Mean effective pressure
E.Exhaust temperature
Live storage of fuel means
A.Fuel stored to meet day’s requirement for the boiler
B.Fuel stored for supply at any time during emergency
C.Fuel stored at the plant
D.Fuel stored near the burners
E.None of the above
In a four stage compressor system first and third stage pressures are 1 and 9 kg/cm2 respectively. What will be the fourth stage delivery pressure
A.3 kg/cm2
B.9 kg/cm2
C.27 kg/cm2
D.81 kg/cm2
E.243 kg/cm2
Free air is air at
A.Atmospheric conditions at any specific location
B.1 kg/cm2 and atmospheric temperature
C.1 kg/cm2 and 0?C
D.1 kg/cm2 and 20?C
E.1 kg/cm2 and 27?C
To avoid moisture trubles, the branch connection from compressed air line are taken from
A.Top side
B.Bottom side
C.Left side
D.Right side
E.Any side
Which one of the following symptoms will not show that combustion is becessary complete.
A.Presence of free carbon in exhaust
B.Presence of carbon monoxide in exhaust
C.Presence of oxygen in exhaust
D.Presence of nitrogen in exhaust
E.All of the above
Thermie
A.Is a unit of temperature measurement
B.Is a unit of latent heat measurement
C.Is thermal conductivity of materials
D.Is quantity of heat required to raise temperature of one tonne of water from 14.5?C to 15.5?C
E.Is the temperature change in water when 1000 calories of heat are added to 1 gm of water, gradually
Rankine cycle efficiency for fixed steam temperature of any volume upto critical temperature will be maximum for steam pressure of
A.Critical pressure
B.100 kg/cm2
C.200 kg/cm2
D.203.5 kg/cm2
E.250 kg/cm2
