The fuel air ratio in a petrol engine fitted with suction carburettor, operating with dirty air filter as compared to clean filter will be________________?

Byadmin January 27, 2019August 16, 2021

The fuel air ratio in a petrol engine fitted with suction carburettor, operating with dirty air filter as compared to clean filter will be________________?

A. higher
B. lower
C. remain unaffected
D. unpredictable
E. none of the above

I.C. Engines

A 75 cc engine has following parameter as 75 cc ___________________?

A 75 cc engine has following parameter as 75 cc ___________________?

A. fuel tank capacity
B. lub oil capacity
C. swept volume
D. cylinder volume
E. clearance volume

Read More A 75 cc engine has following parameter as 75 cc ___________________?
I.C. Engines

The ignition of charge by some hot surface in the engine cylinder before operation of spark plug is known as________________?

The ignition of charge by some hot surface in the engine cylinder before operation of spark plug is known as________________?

A. auto ignition
B. preignition
C. retarded ignition
D. accelerated ignition
E. detonation

Read More The ignition of charge by some hot surface in the engine cylinder before operation of spark plug is known as________________?
I.C. Engines

If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the________________?

If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the________________?

A. exhaust will be smoky
B. piston rings would stick into piston grooves
C. exhaust temperature will be high
D. engine starts overheating
E. scavenging occurs

Read More If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the________________?
I.C. Engines

The maximum temperature in the I.C. engine cylinder is of the order of ________________?

The maximum temperature in the I.C. engine cylinder is of the order of ________________?

A. 500- 1000°C
B. 1000- 1500°C
C. 1500-2000°C
D. 2000-2500°C
E. 2500-3000°C

Read More The maximum temperature in the I.C. engine cylinder is of the order of ________________?
I.C. Engines

It the temperature of intake air in IC engines is lowered, then its efficiency will_______________________?

It the temperature of intake air in IC engines is lowered, then its efficiency will_______________________?

A. increase
B. decrease
C. remain same
D. increase upto certain limit and then decrease
E. decrease upto certain limit and then in-crease

Read More It the temperature of intake air in IC engines is lowered, then its efficiency will_______________________?
I.C. Engines

Cetane number is determined by comparing the performance of diesel oil with the following hydrocarbons___________________?

Cetane number is determined by comparing the performance of diesel oil with the following hydrocarbons___________________?

A. cetane
B. mixture of cetane and alphamethyl napthalene
C. ethylene dibromide
D. mixture of aldehydes and ketones
E. mixture of cetane with tetra-ethyl lead

Read More Cetane number is determined by comparing the performance of diesel oil with the following hydrocarbons___________________?

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