Internal Combustion Engines The thermal efficiency of petrol and gas engines is about 0.5 0.3 0.15 0.7 0.5 0.3 0.15 0.7 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The ignition of the charge by some hot surface within the engine before the passage of spark is called Pre-ignition Auto-ignition Ignition delay Detonation Pre-ignition Auto-ignition Ignition delay Detonation ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines In a coil ignition system of petrol engines, a condenser is connected across the contact breaker in order to None of these Both (A) and (B) Prevent sparking across the gap between the points Cause more rapid break of the primary current, giving a higher voltage in the secondary circuit None of these Both (A) and (B) Prevent sparking across the gap between the points Cause more rapid break of the primary current, giving a higher voltage in the secondary circuit ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The combustion in compression ignition engines is Homogeneous Both (A) and (B) None of these Heterogeneous Homogeneous Both (A) and (B) None of these Heterogeneous ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines A fuel of cetane number 40 has the same ignition quality as a mixture of 40% alpha methyl naphthalene and 60% cetane 40% cetane and 60% alpha methyl naphthalene 40% diesel and 60% petrol 40% petrol and 60% diesel 40% alpha methyl naphthalene and 60% cetane 40% cetane and 60% alpha methyl naphthalene 40% diesel and 60% petrol 40% petrol and 60% diesel ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The output of a diesel engine can be increased without increasing the engine revolution or size in following way Heating incoming air Supercharging Scavenging Feeding more fuel Heating incoming air Supercharging Scavenging Feeding more fuel ANSWER DOWNLOAD EXAMIANS APP
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