Scavenging air in diesel engine means
a.air used for combustion sent under pressure
b.forced air for cooling cylinder
c.burnt air containing products of combustion
d.air used for forcing burnt gases out of engine's cylinder during the exhaust period.
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In frequency modulation | Physics Questions
a.the modulation of career wave varies according to the frequency of message signal
b.the amplitude of modulated wave varies according to the voltage of message signal
c.the frequency of modulated wave varies according to the frequency of message signal
d.the amplitude of career wave varies according to the voltage of message signal