A supercharger is used in the engines of earthmoving machines at higher altitudes because
(a) The ambient atmospheric pressure is less at higher altitudes
(b) Four-cycle engines depend on the suction of the engines for the supply of air
(c) Two-cycle engines are not rugged enough for higher altitude
(d) The ambient temperature is less as the altitude is higher

1 Answer

Answer :

(a) The ambient atmospheric pressure is less at higher altitudes

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