The sensing element in the control system of nuclear reactors measures the _________ of the neutron flux in the reactor.
The sensing element in the control system of nuclear reactors measures the _________ of the neutron flux in the reactor.
The knocking in diesel engines may be prevented by
The knocking in diesel engines may be prevented by
The thermal efficiency of a diesel cycle having fixed compression ratio, with increase in cut-off ratio will
The thermal efficiency of a diesel cycle having fixed compression ratio, with increase in cut-off ratio will
The increase of efficiency of a compression ignition engine, as the load decreases, is due to
The increase of efficiency of a compression ignition engine, as the load decreases, is due to
In the crankcase method of scavenging, the air pressure is produced by
In the crankcase method of scavenging, the air pressure is produced by
In petrol engines, the delay period is of the order of
In petrol engines, the delay period is of the order of
The mean effective pressure obtained from engine indicator indicates the
The mean effective pressure obtained from engine indicator indicates the
A fuel of an octane number rating of 75 matches in knocking intensity as a mixture of
A fuel of an octane number rating of 75 matches in knocking intensity as a mixture of
Which of the following fuel has little tendency towards detonation?
Which of the following fuel has little tendency towards detonation?
If V₁ is the jet velocity and V₀ is the vehicle velocity, then propulsive efficiency of a turbojet engine is
If V₁ is the jet velocity and V₀ is the vehicle velocity, then propulsive efficiency of a turbojet engine is
In a four stroke cycle petrol engine, the charge is ignited at
In a four stroke cycle petrol engine, the charge is ignited at
The compression ignition engines are governed by
The compression ignition engines are governed by
The theoretically correct air fuel ratio for petrol engine is of the order of
The theoretically correct air fuel ratio for petrol engine is of the order of
A higher compression ratio causes
A higher compression ratio causes
If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the
If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the
It the temperature of intake air in IC engines is lowered, then its efficiency will
It the temperature of intake air in IC engines is lowered, then its efficiency will
The reflectivity depends upon
The reflectivity depends upon
For maximum power generation, the air fuel ratio for a petrol engine for vehicles, is of the order of
For maximum power generation, the air fuel ratio for a petrol engine for vehicles, is of the order of
The accumulation of carbon in a cylinder results in increase of
The accumulation of carbon in a cylinder results in increase of
The term scavenging is generally associated with
The term scavenging is generally associated with
The injector nozzle of a compression ignition engine is required to inject fuel at a sufficiently high pressure in order to
The injector nozzle of a compression ignition engine is required to inject fuel at a sufficiently high pressure in order to
In a four stroke cycle diesel engine, the exhaust valve
In a four stroke cycle diesel engine, the exhaust valve
In case of gas turbines, the gaseous fuel consumption guarantees are based on
In case of gas turbines, the gaseous fuel consumption guarantees are based on
The knocking tendency in spark ignition engines may be decreased by
The knocking tendency in spark ignition engines may be decreased by
The thermal efficiency of a petrol engine is _________ as compared to diesel engine.
The thermal efficiency of a petrol engine is _________ as compared to diesel engine.
The rating of a diesel engine, with increase in air inlet temperature, will
The rating of a diesel engine, with increase in air inlet temperature, will
Crankcase explosion in I.C. engines usually occurs as
Crankcase explosion in I.C. engines usually occurs as
If the temperature of intake air in internal combustion engine increases, then its efficiency will
If the temperature of intake air in internal combustion engine increases, then its efficiency will
The spark ignition engines are governed by
The spark ignition engines are governed by
By higher octane number of spark ignition fuel, it is meant that the fuel has
By higher octane number of spark ignition fuel, it is meant that the fuel has
As a result of detonation in an I.C. engine, following parameter attains very high value
As a result of detonation in an I.C. engine, following parameter attains very high value
In diesel engine, the compression ratio in comparison to expansion ratio is
In diesel engine, the compression ratio in comparison to expansion ratio is
If the intake air temperature of I.C. engine increases, its efficiency will
If the intake air temperature of I.C. engine increases, its efficiency will
In a diesel engine, the duration between the time of injection and ignition, is known as
In a diesel engine, the duration between the time of injection and ignition, is known as
The probability of knocking in diesel engines is increased by
The probability of knocking in diesel engines is increased by
Which is more viscous lube oil?
Which is more viscous lube oil?
The maximum temperature in the I.C. engine cylinder is of the order of
The maximum temperature in the I.C. engine cylinder is of the order of
In a petrol engine, the mixture has the lowest pressure at the
In a petrol engine, the mixture has the lowest pressure at the
Gaseous fuel guarantees are based on
Gaseous fuel guarantees are based on
The pressure at the end of compression in the case of diesel engine is of the order of
The pressure at the end of compression in the case of diesel engine is of the order of
A fuel of cetane number 40 has the same ignition quality as a mixture of
A fuel of cetane number 40 has the same ignition quality as a mixture of
All heat engines utilize
All heat engines utilize
The basic requirement of a good combustion chamber is
The basic requirement of a good combustion chamber is
Which of the following is false statement?
Excess quantities of sulphur in diesel fuel are Objectionable because it may cause the following
Which of the following is false statement?
Excess quantities of sulphur in diesel fuel are Objectionable because it may cause the following
A petrol engine, during suction stroke draws
A petrol engine, during suction stroke draws
In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.
In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.
The inlet value of a four stroke cycle I.C engine remains open for nearly
The inlet value of a four stroke cycle I.C engine remains open for nearly
