Related Questions

If the temperature of intake air in internal combustion engine increases, then its efficiency will
A Remain same
B Decrease
C Increase
D None of these
The rocker arms in internal combustion engines are of __________.
A First type levers
B Second type levers
C Third type levers
D None of these
The higher combustion chamber wall temperature in compression ignition engines will _________ knocking tendency.
A Increase
B Reduce
C Not effect
D None of these
In an internal combustion engine, the process of removing the burnt gases from the combustion chamber of the engine cylinder is known as
A Scavenging
B Detonation
C Supercharging
D Polymerisation
The popular notion that a tree's age can be determined by counting number of internal rings in its trunk is generally true. Howeevr, to help regulate the internal temperature of the tree, the outermost layers of wood of the Brazilian ash often →peel away when the temperature exceeds 95 degrees Fahrenheit, leaving the tree with fewer rings than it would otherwise have. So only if the temperature in the Brazilian ash's environment never exceeds 95 degrees Fahrenheit →elav eing the tree with fewer rings than it would otherwise have. So only if the reliable measure of the tree's age. Which of the following is an assumption on whish the argument above depends?
A The growth of new rings in a trees is not a function of levels of precipitation.
B Only the Brazilaian ash loses rings because of excessive heat.
C One day of temperatures above 95 degrees Fahrenheit will cause the Brazilian ash to lose one ring.
D The internal rings of all tress are of uniform thickness
The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of
A 75%
B 85%
C 90%
D 99%
If the intake air temperature of I.C. engine increases, its efficiency will
A Increase
B Decrease
C Remain same
D None of these
The working pressure and temperature inside the cylinder of an internal combustion engine is _________ as compared to a steam engine.
A Low
B Very low
C High
D Very high
Thermal efficiency of an internal combustion engine is around __________ percent.
A 8
B 35
C 65
D 80
There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would
A Remain same
B Decrease
C Increase
D None of the above

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