Related Questions

Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the __________ temperature of air.
A Wet bulb
B Dry bulb
C Saturation
D Dew point
The theoretically correct mixture of air and petrol is
A 10 : 1
B 15 : 1
C 20 : 1
D 25 : 1
The theoretically correct air fuel ratio for petrol engine is of the order of
A 6 : 1
B 9 : 1
C 12 : 1
D 15 : 1
Which of the following can be calculated theoretically using steam table and Dalton's law of partial pressure; if the relative humidity and dry bulb temperature of moist air is known?
A Dew point
B Humidity ratio
C Wet bulb temperature
D None of these
Use of excess of combustion air in the combustion of fuels results in
A Heat losses
B Long flame
C Condensation of water vapour from the fuel gas
D None of these
Deficiency of combustion air during combustion of a gaseous fuel
A Lengthens the flame
B Causes heat loss of fuel by its partial combustion
C Both A & B
D Shortens the flame
The air requirement of a petrol engine during starting compared to theoretical air required for complete combustion is
A More
B Less
C Same
D May be more or less depending on engine capacity
In case of parallel flow heat exchanger, the lowest temperature theoretically attainable by the hot fluid is __________ the outlet temperature of the cold fluid.
A Equal to
B More than
C Less than
D Either more or less than (depending upon the fluid)
Theoretically calculated diameter of the stripping section of the continuous rectification column is __________ that of the enriching section.
A Less than
B More than
C Same as
D Either more or less (depending upon relative volatility)
The most commonly used combustion system manufactured in India for the thermal power plant boilers is the __________ combustion system.
A Pulverised fuel
B Travelling grate stoker firing
C Circulating fluidised bed
D Fluidised bed

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