Refrigeration and Air Conditioning Quiz

Refrigeration is usually done by an artificial means of ............ the temperature.

• adding

• lowering

• removing

• causing

All known elements are ................. up of very small particles

• adding

• done

• certain

• made

Carbon and hydrogen in certain combinations ................ sugar.

• form

• metric

• measured

• causing

A body can best be.................by the rise or fall in temperature .

• adding

• lowering

• measured

• metric

The Btu's equivalent in the .................. system is the calorie.

• rise

• metric

• removing

• certain

Tubing benders are used to make ................. to almost any degree desired.

• circles

• square

• bends

• stretches

Reversible ratchets are used to turn the ................ stems when servicing a refrigeration unit.

• operating valve

• service valve

• pressure valve

• connection valve

Voltmeters are used for measuring ................. to a refrigeration or air conditioning system.

• resistances

• current

• pressure

• voltages

Electronic leak detectors are used to locate ................ in refrigeration systems.

• rifts

• leaks

• links

• traces

.............. clothing must be worn by people welding and working nearby.

• Protective

• Casual

• Formal

• Warm