(A) removes air and also vapour from condenser
(B) removes only air from condenser
(C) removes only un-condensed vapour from condenser
(D) removes air alongwith vapour and also the condensed water from condenser
(A) removes air and also vapour from condenser
(B) removes only air from condenser
(C) removes only un-condensed vapour from condenser
(D) removes air alongwith vapour and also the condensed water from condenser
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