Moderate

In a surface condenser if air is removed, there is___________?

Correct answer: A. fall in absolute pressure maintained in condenser

A. fall in absolute pressure maintained in condenser
B. rise in absolute pressure maintained in condenser
C. no change in absolute pressure in the condenser
D. rise in temperature of condensed steam

Explanation

Air entering a condenser raises its partial pressure and opposes condensation; removing it lowers the total absolute pressure and improves the vacuum. The condensed-steam temperature correspondingly tends to fall rather than rise.

Last updated 16 September 2026

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In a surface condenser if air is removed, there is___________?

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