A fuel of an octane number rating of 75 matches in knocking intensity as a mixture of 75% iso-octane and 25% normal heptane 75% diesel and 25% petrol 75% petrol and 25% diesel 75% normal heptane and 25% iso-octane TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is false statement? Some of the methods used to reduce diesel smoke are as follows Increasing the compression ratio Adherence to proper fuel specification Using additives in the fuel Avoidance of overloading TRUE ANSWER : ? YOUR ANSWER : ?
The air standard efficiency of an I.C. engine depends on Speed of engine None of these Compression ratio Fuel used TRUE ANSWER : ? YOUR ANSWER : ?
As a result of detonation in an I.C. engine, following parameter attains very high value Peak pressure Peak temperature Rate of rise of temperature Rate of rise of pressure TRUE ANSWER : ? YOUR ANSWER : ?
The colour of exhaust from diesel engine is generally White Black Violet Bluish TRUE ANSWER : ? YOUR ANSWER : ?
In loop scavenging, the top of the piston is Contoured Slanted Flat Depressed TRUE ANSWER : ? YOUR ANSWER : ?
The working cycle in case of four stroke engine is completed in following number of revolutions of crankshaft 43832 2 4 1 TRUE ANSWER : ? YOUR ANSWER : ?
The pressure inside the cylinder is _________ the atmospheric pressure during the exhaust stroke. Above None of these Below Equal to TRUE ANSWER : ? YOUR ANSWER : ?
Diesel as compared to petrol is More difficult to ignite None of these Highly ignitable Less difficult to ignite TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statement is correct regarding normal cetane? It is a standard fuel used for knock rating of diesel engines Its chemical name is normal hexadecane It has long carbon chain structure All of these TRUE ANSWER : ? YOUR ANSWER : ?