GATE 2025 AG – Question 19

Dairy and Food Engineering · Unit Operations in Dairy and Food Engineering · 1 mark · Multiple choice

What is the refrigerant condition at the compressor exit in a vapor-compression refrigeration system?

Saturated liquid
Wet vapor
Dry saturated vapor
Superheated vapor

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Show answer and explanation

Correct answer: (D) Superheated vapor

Explanation

The compressor receives vapor and raises its pressure and temperature. In the usual vapor-compression cycle, the discharge is above the saturation temperature at condenser pressure and is therefore superheated vapor. Condensation to liquid takes place subsequently in the condenser. Hence **D**.

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