Q.1.
It the temperature of intake air in IC engines is lowered, then its efficiency will
Q.2.
The probability of knocking in diesel engines is increased by -
Q.3.
The ignition quality of petrol is expressed by -
Q.4.
In a four stroke cycle petrol engine, the inlet valve
Q.5.
The temperature of interior surface of cylinder wall in normal operation is not allowed to exceed
Q.6.
The secondary fuel used in nuclear power plants is
Q.7.
The method of determination of indicated power of a multi cylinder spark ignition engine is by the use of
Q.8.
The thermal efficiency of a petrol engine is _________ as compared to diesel engine.
Q.9.
The maximum temperature in the I.C. engine cylinder is of the order of -
Q.10.
Scavenging air in diesel engine means
Q.11.
The knocking tendency in compression ignition engines for a given fuel will be
Q.12.
The process of breaking up or a liquid into fine droplets by spraying is called
Q.13.
High speed compression engines operate on
Q.14.
The injection pressure in a diesel engine is about
Q.15.
In a four stroke cycle petrol engine, the charge is compressed when both the valves (i.e. inlet valve and exit valve) are closed,
Q.16.
The basic requirement of a good combustion chamber is
Q.17.
The energy released during the fission of one atom of Uranium -in million electron volts is about
Q.18.
The pre-ignition occurs before the spark is produced whereas detonation develops after the introduction of spark.
Q.19.
The detonation is also called knocking or pinking.
Q.20.
Uis produced