9.Blowers are used with many diesel engines to supply the air necessary for combustion to theengine’s cylinders. When the pressure of this air is increased above atmospheric pressure,referred to as supercharging, the power output of engine is increased. In addition, in a two-strokeengine the air supplied by the blower helps to purge the engine’s cylinders of exhaust gas. This isreferred to as scavenging. Based on these descriptions, please specify the correct statement.
(A)The scavenging and supercharging processes share identical purpose of increasing the staticpressure in the intake pipes.
(B)The use of blow for scavenging and supercharging is due to its characteristics of high-pressureand low volumetric flow rate.
(C)The blower for marine application is always the centrifugal type as it offers the high speedcharacteristic.
(D)The scavenging in a two-stroke engine assists to purge the engine’s exhaust gas which hasbeneficial effect for combustion.