Internal Combustion Engines Pre-ignition is caused by the spontaneous combustion of the mixture before the end of the compression stroke, and is due to Cylinder walls being too hot Red hot carbon deposits on cylinder walls Any one of the listed here Overheated spark plug points Cylinder walls being too hot Red hot carbon deposits on cylinder walls Any one of the listed here Overheated spark plug points 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 Prevent sparking across the gap between the points Both (A) and (B) None of these Cause more rapid break of the primary current, giving a higher voltage in the secondary circuit Prevent sparking across the gap between the points Both (A) and (B) None of these Cause more rapid break of the primary current, giving a higher voltage in the secondary circuit ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Which of the following does not relate to a compression ignition engine? Carburettor Fuel pump Fuel injector Governor Carburettor Fuel pump Fuel injector Governor ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The knocking in spark ignition engines can be reduced by None of these Increasing the engine speed Both (A) and (B) Retarding the spark None of these Increasing the engine speed Both (A) and (B) Retarding the spark ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The injector nozzle of a compression ignition engine is required to inject fuel at a sufficiently high pressure in order to Inject fuel in a chamber of high pressure at the end of compression stroke Ensure that penetration is not high Inject fuel at a high velocity to facilitate atomization All of these Inject fuel in a chamber of high pressure at the end of compression stroke Ensure that penetration is not high Inject fuel at a high velocity to facilitate atomization All of these ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Compression ratio of I.C. Engines is Swept volume/cylinder volume The ratio of volumes of air in cylinder before compression stroke and after compression stroke Volume displaced by piston per stroke and clearance volume in cylinder Ratio of pressure after compression and before compression Swept volume/cylinder volume The ratio of volumes of air in cylinder before compression stroke and after compression stroke Volume displaced by piston per stroke and clearance volume in cylinder Ratio of pressure after compression and before compression ANSWER DOWNLOAD EXAMIANS APP
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