The silencer of an IC engine:

Morse test is conducted on:

The process of supplying the intake air to the engine cylinder at a density more than the density of the surrounding atmosphere is known as:

Morse test is conducted on multi-cylinder engine to find the engine’s:

The process of removing the burnt gases from the combustion chamber of the engine cylinder using fresh charge is called

Morse test is used for multi-cylinder spark ignition engine to determine:

Supercharging is the process of:

Aircraft engines use ________ for cooling engines.

Why do engines need to be cooled?

The fourth stage of the compression ignition process is :

Air cooling is mostly preferred for ________. 

Which of the following is NOT a wet sump lubrication system?

What is the purpose of using the meter rod and economizer device in some carburettors?

The function of piston rings in internal combustion engines is also to:

In a multi-cylinder heavy duty engine, mainly ________ lubrication system is used.

Air-cooled engine's efficiency is ________ than/as water-cooled engine for the same power rating.

In an IC engine, the type of lubrication system used for bearing is mainly :

Which of the following is an advantage of the liquid cooling system as compared to air cooling system for an IC Engine? 

The power available at the engine crankshaft is known as :

The ratio of indicated thermal efficiency to the air standard efficiency is called as: 

In two-stroke engines, the type of lubrication system employed in the crankcase is the 

In an IC engine, boundary lubrication is likely to occur between surfaces with relative velocity during :

In an IC engine, combustion was found to proceed during the expansion stroke also. The reason could be : 

Which of the following engine cooling systems is commonly employed in heavy trucks? 

Select the incorrect statement from following about an air cooled IC engine. 

Select the incorrect statement from below about good quality lubricating oils. 

The lubricating oil is circulated in an IC engine by : 

The Brake-specific fuel consumption (BSFC) of a diesel engine is 200 gm/kWh. If the calorific value of diesel is 40 MJ/kg, the brake thermal efficiency is:

The air-fuel ratio in petrol engines is controlled by 

How self-ignition temperature of petrol be compared to that of diesel?

Mechanical seals are used 

Which of the following method of fuel ignition is used in Diesel engine?

In order to prevent formation of carbon on the injector, the temperature  (in°C )of nozzle tip should be 

Free acids in diesel oil for Diesel engine lead to 

Which of the following statements is correct about lubrication coolants?

Which is not a part of magneto-ignition system?

Using lubricants on engine parts is an example of reducing

Self-ignition temperature of diesel as compared to petrol :

In internal combustion engine terminology, MPFI stands for :

What approximate percentage of heat of combustion is lost to the jacket cooling water 

Which element regulates the pressure strokes in the fuel injection pump of a Diesel engine?

What material is used for the insulating body of a spark plug?

In Diesel engine, the ignition takes place 

Quality of ignition of petrol is measured by 

For Diesel engine, the method of governing employed is:

The air fuel ratios used in a compression ignition engine lie in the range of :

________ in the fuel is oxidised during knocking.

If an IC engine consumes fuel at the rate of 1 g/s and if the air-fuel ratio for it is 20. The mass flow rate of exhaust gas in g/s is :

The air-fuel ratios used in the normal operation of SI and CI engines are : 

For combustion of gaseous fuels the following is of great use