Explanation: The purpose of the supercharger is to increase the pressure of the charge. Brake power = \(\frac{brake\, mean\, effective\, pressure \,X \,swept\, volume\, X\, no.of \,cylinder\, X\, no.of \,power \,strokes}{60000}\) . From the formula, by increasing the brake mean effective pressure brake power can be increased.

Explanation: The supercharging used for an improved cold start, increased gas loading, reduced exhaust smoke, increased mechanical efficiency, etc. The disadvantage of the supercharger is that it uses the crankshaft of the engine to drive.

Explanation: The supercharger which uses the engine exhaust gases for increasing the brake power is called the turbocharger. The frictional and thermal losses are less.

Explanation: Centrifugal type supercharger is used at low speeds. The belt from the engine drives the supercharger. The mixture coming out of the supercharger is at high pressure.

Explanation: One of the advantages of Root’s supercharger is that it has minimal maintenance. Root’s supercharger works similar to the gear pump. It consists of two rotors which are connected to each other by means of gear.

Explanation: The supercharger increases the power output of the engine by increasing the charge pressure. The brake of the engine depends on the brake mean effective pressure.

Explanation: Engine is used to run mechanically driven supercharger. The engine crankshaft is coupled with the air compressor of the supercharger which drives the air compressor in the supercharger.

Explanation: When the air in the supercharger gets compressed, it gets hot. Its temperature gets increased more than the ambient air temperature.

= \(\frac{3.5 × 10 × 10^5 × 6000}{1000 × 60000 × 2}\) = 175 kW.

Explanation: The turbocharger makes use of the exhaust gases from the engine to drive the gas turbine. In this type of supercharger, there is no linkage between the turbocharger and the engine.