Tuesday night quiz

The TXV low-pressure safety switch is located

• inside the compressor
• on the condenser coil
• on the high-pressure side of the system
• on the evaporator coil or near the expansion valve

When cleaning the condenser for debris

• Clean the condenser for debris
• Ignore the debris and continue using the condenser
• Replace the condenser with a new one
• Spray water on the condenser to remove debris

•Computer-controlled air-conditioning systems have the same fail-safe devices as regular systems

• False
• True

•Charge refers to the amount of ___________________in the air-conditioning system.

• water
• electricity
• gasoline
• refrigerant

•Steps to the diagnosis and repair of air-conditioning systems include performance test and inspection, peak test, reclaiming refrigerant, problem repair, evacuation, charging, and post-testing (performance test).

• true

• false

The two most common air-conditioning customer complaints are:

• foul smell and inefficient cooling

• frequent breakdowns and high energy bills
• too cold and strange noises

• loud humming and slow heating

Air-conditioning performance testing should be done before and after

• repair

• the vehicle is unoccupied

• a heavy rainstorm

• power outage

Any time the air-conditioning system is opened, the refrigerant must be

• reclaimed

• released into the atmosphere
• disposed of in regular trash
• ignored and left as is

•Performance testing of the air-conditioning system is one of the first ___________in diagnosis.

• tools
• colors
• recipes
• steps

•Acid test strips can be used to test for the presence of _________.

• sugar content
• temperature
• metallic substances
• acidity or alkalinity