Internal Combustion Engines Diesel engine can work on very lean air fuel ratio of the order of 30: 1. A petrol engine can also work on such a lean ratio provided Flywheel size is proper It is properly designed Best quality fuel is used Cannot work as it is impossible Flywheel size is proper It is properly designed Best quality fuel is used Cannot work as it is impossible 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 Detonation Auto-ignition Ignition delay Pre-ignition Detonation Auto-ignition Ignition delay ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines Does the supply of scavenging air at a density greater than that of atmosphere mean engine is supercharged? To some extent No Unpredictable Yes To some extent No Unpredictable Yes ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The octane number of petrol, generally available, is 60 to 80 40 to 60 20 to 40 80 to 100 60 to 80 40 to 60 20 to 40 80 to 100 ANSWER DOWNLOAD EXAMIANS APP
Internal Combustion Engines The thermal efficiency of diesel engines is about 0.7 0.5 0.3 0.15 0.7 0.5 0.3 0.15 ANSWER DOWNLOAD EXAMIANS APP
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 Overheated spark plug points Red hot carbon deposits on cylinder walls Any one of the listed here Cylinder walls being too hot Overheated spark plug points Red hot carbon deposits on cylinder walls Any one of the listed here ANSWER DOWNLOAD EXAMIANS APP
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