ACR-101 Unit 05 Quiz

Punch, lever, and die are all types of _________.

• swaging tools

• threading tools

• riveting tools

• flaring tools

A tap is used to cut external threads and a die is used to cut internal threads.

• True

• False

Tubing benders should be used for bending _________.

• soft and hard copper

• soft copper and aluminum

• aluminum and brass

• steel and soft copper

The tool used to remove air and noncondenseable gases from a refrigeration system is __________.

• vacuum pump

• charging scale

• recovery machine

• electronic thermistor

A ___________ is used to change pins in a charged system or to evacuate a system faster.

• Schrader core removal tool

• charging scale

• low loss fitting

• micron gauge

A megohmmeter is used to test ______________.

• continuity in switches

• very high resistances

• voltage in a live circuit

• compressor current

A test instrument that can measure things such as voltage, current, resistance, and microamps is called a ____________.

• megohmmeter

• multimeter

• ohmmeter

• ammeter

A combustion analyzer can measure levels of _________ in flue gas.

• CO₂, C₃H₈, and CO

• O₂, CH₄, O₃, and CO

• O₂, CO, NO_x, and SO₂

• CO, CH₄, and O₃

A digital vacuum gauge measures a vacuum in microns and may have other scales as well.

• True

• False

An electronic leak detector can be used to locate leaks in a system that is charged with _____________, depending on the model.

• CFCs, HCFCs, or HFCs

• CFCs only

• HFCs only

• HCFCs only