Chapter 7 REVIEW Testing Modules with a Multimeter

Question 1

Continuity

Answer 1

Continuity means that an electrically conductive path exits between two pionts.

Question 2

Digital multimeters (DMMs)

Answer 2

Digital multimeters (DMMs) are electrical meters with LCD or LED numeric screens and are used to measure values such as voltage, current, and resistance.

Question 3

Analog multimeters (AMMs)

Answer 3

Analog multimeters (AMMs) are electrical meters with analog dial screens and are used to measure values such as voltage, current, and resistane.

Question 4

Clamp-on current meters

Answer 4

Clamp-on current meters measure amperage by claming an insulated meter around a conductor to read the electron flow.

Question 5

Personal protective equipment (PPE)

Answer 5

Personal protective equipment (PPE) is specialized safety equipment and clothing that protects workers from hazards.

Question 6

Testing for polarity

Answer 6

Testing for polarity means confirming that the positive and negative conductors are correctly identified; a polarity check needs to be done at each electrical box with all dc sources before commissioning system.