What is the remedy of the cause "carbon deposit in combustion chamber"?

Which of the following statement is correct with regard to the expansion valave?

A. The expansion valve converts high-temperature, high-pressure vapour refrigerant into low-temperature, low-pressure liquid

B. The expansion valve converts high-temperature, high-pressure liquid refrigerant into low-temperature, low-pressure mist

C. The expansion valve controls the amount and the temperature of the refrigerant flowing into the evaporator

D. The expansion valve prevents the evaporator from freezing

The inner end of the axle shaft is splined to the

A. Side gear

B. Pinion

C. Differential case

D. None of these

The lay-out of vehicle shows

A. Different parts used in vehicles

B. Different components of chassis

C. Different assemblies and parts of vehicles

D. Shape, size and types of chassis

International Driving Licence (IDL)/International Driving Permit (IDP) in India can be issued to?

A. Only NRI

B. Only foreigner

C. Only Indian

D. All of the above