CHILLER SYSTEM - Practice Mode
1) How much heat is released from 2 HP motor if 746 W motor releases 3 K Cal/hr?
Correct Answer: 6 K Cal/hr
2) What is the advantage of electrically interlocked circuit for motors and pumps in a chiller plant?
Correct Answer: Start and stop the loads sequentially
3) Which parameter indicates that the central AC system has non condensable gas?
Correct Answer: Condenser outlet water temperature
4) What is the advantage of air washer compared to cooling coil of AHU?
Correct Answer: Faster heat transfer
Explanation:
In oxy acetylene welding Acetylene gas is closed first to avoid back fire.
5) What is the advantage of variable speed pumping load control in chiller AC plant?
Correct Answer: Control valves are eliminated