UA Local 467 Section 15.1 Quizizz

___ is measured across an electrical control device by placing the DMM leads in parallel across the device being tested.

• Pressure

• Resistance

• Current

• Voltage

A(n) ___ is current that leaves the normal current-carrying path by going around the load and back to the power source or to ground.

• dead short

• short circuit

• partial short

• open circuit

In a cooling control application, when the thermostat is in the OFF position, the ___.

• compressor is ON, and the condenser fan and indoor fan are OFF

• compressor is OFF, and the condenser fan and indoor fan are ON

• compressor, condenser fan, and indoor fan are all ON

• compressor, condenser fan, and indoor fan are all OFF

In a refrigeration control application, when power is applied to the HVAC unit, the ___ is energized.

• evaporator fan

• compressor

• compressor crankcase heater

• liquid line solenoid valve

A digital multimeter provides an audible signal to indicate ___.

• a complete electrical path between the points tested

• high resistance

• incomplete electrical continuity between the points tested

• a small number of electrons flowing through the circuit

In a(n) ___ application, a room thermostat energizes a gas valve, which allows gas to flow to a burner.

• sequence timing
• electrical

• cooling control

• heating control

___ is the presence of a complete path for current flow.

In HVAC, all applicable safety codes and regulations must be followed per the ___ and/or authority having jurisdiction.

A(n) ___ is a device designed to measure current in a circuit by measuring the strength of the magnetic field around a single conductor.

A(n) ___ is a short circuit of only a section or several sections of a machine.