In a fluid coupling, the torque transmitted is 50 kN-m, when the speed of the driving and driven shaft is 900 rpm and 720 rpm respectively. The efficiency of fluid coupling will be

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

A. Side gear B. Pinion C. Differential case D. None of these

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

A. Only NRI B. Only foreigner C. Only Indian D. All of the above