Electrician Practice Tests

ALL CFC’s and HCFC’s must be …………….. before opening a system for service or maintenance.

A single chlorine atom can destroy ………….. number of ozone molecules

Which of the following refrigerant can be transferred or sold to another individual?

Which of the following refrigerant has zero ODP?

For industrial and commercial refrigeration systems, the substantial leak is a leak of ……………. percent per year or more of normal charge.

Synthetic oils must be stored in ………………… containers

Which of the following has maximum concentration percentage in atmosphere?

As you travel to higher altitudes, the atmospheric pressure ……………..

From ……………. the Clean Air Act makes it illegal for individuals to vent ozone depleting substances into atmosphere.

Prior to dispose any system containing refrigerant, the technician must first ……………..

Under section 608 of Clean Air Act venting of HFC’s since ……………… is violation of act.

The process of removing refrigerant in any condition from appliance and store it in a external container is ……………………………….

In a refrigerant circuit, where does a liquid absorbs heat?

Pressure is defined as ………………

When the gas is heated above its saturation it is said to be …………………