Aux 2 Unit 9 Quiz 3

Aux 2 Unit 9 Q3

1 / 7

Which of the following is a critical check after recharging a previously undercharged refrigeration system?

C) Monitoring system pressures and temperatures to confirm proper operation

D) Reducing the ambient temperature

B) Verifying that the expansion valve is fully open

A) Ensuring high subcooling at the condenser

2 / 7

Which of the following is an indication of an undercharged refrigeration system?

A) High superheat at the evaporator outlet

C) High subcooling at the condenser

D) Excessive refrigerant flow to the evaporator

B) Low temperature difference across the condenser

3 / 7

What is the first step in remedying an undercharged refrigeration system?

B) Check for and repair any refrigerant leaks

D) Adjust the expansion valve

A) Increase the temperature setting on the thermostat

C) Clean the condenser coils

4 / 7

What should be done after repairing leaks in an undercharged refrigeration system?

C) Replace the evaporator

D) Increase the fan speed on the condenser

B) Recharge the system with the appropriate amount of refrigerant

A) Reduce the compressor speed

5 / 7

What is a common indication of an undercharged refrigeration system?

D) Increased liquid level in the receiver

C) Frost on the condenser coils

B) Low suction pressure and reduced cooling efficiency

A) High pressure at the compressor discharge

6 / 7

What could happen if an undercharged system is not addressed promptly?

A) The system will operate with higher energy efficiency

D) The expansion valve will close permanently

C) The system will produce more cooling

B) The compressor may overheat and become damaged

7 / 7

What visual sign might indicate an undercharged system?

D) High liquid level in the expansion valve

B) Constant liquid flow in the sight glass

A) Ice formation on the evaporator coils

C) Bubbles or vapor in the sight glass

Your score is