Exhibit: Which Two Statements Are Correct for a Safe

question 36

Multiple Choice

Exhibit: Which two statements are correct for a safe wiring installation to the terminal block of the switch or endpoint? (Choose two.)

• A) Insert a green ground wire into the terminal block that is marked RT for return.
• B) Verify that DC power is live and within 24 VDC voltage range before starting wiring.
• C) Verify that the DC power circuit includes an overcurrent protective device that limits the DC current to 5 A.
• D) Because this is a low-voltage DC circuit, anyone can install this wiring without electrical training or qualifications.
• E) Connect the positive 24 VDC conductor to the V terminal and connect the negative 24 VDC return wire to the RT terminal.
• F) A ground wire can optionally be connected to the screw terminal on the front of the switch.

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Definitions:

Risk Takers

Individuals who are inclined to take actions that involve uncertainty, with the potential for significant outcomes, both positive or negative.

Two-Way Table

A tabular method to display the frequencies with which certain combinations of two categorical variables occur.

Null Hypothesis

A hypothesis in statistical analysis that assumes no significant effect or difference exists between specified populations or parameters.

Two-Way Table

A tabular method to display the frequencies of occurrences of variables that are classified according to two categorical dimensions.