EEP Unit 2 and UNEC Unit 2 Test

What's the resistance total of a 10-ohm, a 6-ohm, and a 3-ohm resistor connected in parallel?

1.67 ohms

At least one receptacle outlet shall be located within _____ ft of the outer end of a peninsular countertop or work surface.

2

The total resistance of three 6-ohm resistors in parallel is _____ ohms.

2

The total resistance of five 14-ohm resistors in parallel is _____ ohms.

2.8

The resistance of a coffee pot is 10 ohms and the resistance of a toaster oven is approximately 6 ohms. What's the total resistance of the two appliances if they're connected in parallel?

3.75 ohms

What's the voltage drop of 125 ft of 12 AWG wire (0.24 ohms) on a balanced 3-wire, 120/240V multiwire circuit supplying a 16A load?

3.80V

The total rating of utilization equipment fastened in place, other than luminaires, shall not exceed _____ percent of a multiple outlet branch circuit rating.

50

What's the voltage drop of 180 ft of 12 AWG wire (0.347 ohms) supplying a 17A load?

6V

A 12-ohm coffee pot is connected in parallel to a 16.09-ohm skillet and wired with a wire having a resistance of 0.07 ohms. What's the total resistance of the loads and the wires of this series-parallel circuit?

7.04 ohms

A service disconnecting means shall not be installed in bathrooms.

True

Alternating-current circuits of less than 50V shall be grounded if supplied by a transformer whose supply system exceeds 150 volts-to-ground.

True

Service-entrance and overhead service conductors shall be arranged so that _____ will not enter the service raceway or equipment.

Water

Where exposed to the weather, raceways enclosing service-entrance conductors shall be _____ for use in wet locations and arranged to drain.

a or b (approved or listed)

Metal water piping system(s) shall be bonded to the _____, or to one or more grounding electrodes used, if the grounding electrode conductor or bonding jumper to the grounding electrode is of sufficient size.

any of these ( grounded conductor at the service, service equipment enclosure, grounding electrode conductor if of sufficient size)

For a separate building or structure supplied by a separately derived system when overcurrent protection is not provided for the supply conductors to the building/structure as permitted by 240.21(C)(4), the installation shall be _____ in accordance with 250.30(A).

grounded and bonded

In grounded systems, normally noncurrent-carrying electrically conductive materials that are likely to become energized shall be connected _____ in a manner that establishes an effective ground-fault current path.

together and to the electrical supply source

Type MC cable provides an effective ground-fault current path and is recognized by the NEC as an equipment grounding conductor _____.

when it contains an insulated or uninsulated equipment grounding conductor in compliance with 250.118(1)

The grounded conductor of each separately derived system shall be bonded to the nearest available point of the metal water piping system(s) in the area served by each separately derived system and each bonding jumper shall be sized in accordance with Table 250.102(C)(1) based on the largest ungrounded conductor of the separately derived system.

True

Underground service conductors shall have _____.

adequate mechanical strength and sufficient ampacity for the loads calculated

The 125 percent multiplier for a continuous load as specified in 210.20(A) _____ included when using the unit loads in table 220.12 for calculating the minimum lighting load for a specified occupancy.

is