extra midterm study questions

a. True

Hospital grade receptacles must be used in patient care areas in hospitals and health care facilities a. True b. False

d. all of these

Residential wiring plans generally show lighting and receptacle outlet locations but not circuits. The electrician should design the installation with which of the following in mind: ___. Select one: a. economy - minimizing the number and length of circuits b. convenience for the homeowner or other user c. National Electrical Code requirements d. all of these

b. series

A 24-volt load would require that two 12-volt batteries be connected in ___ to deliver the correct voltage. a. parallel b. series

a. No

A free-standing cabinet is to be installed in a science classroom at a high school. The plans show a listed receptacle installed face-up in the cabinet countertop. Does Section406.5 in the NEC prohibit this installation? a. No b. Yes

b. the luminaire may overheat and cause a fire

A luminaire is rated for a maximum of a 60 watt lamp. If a 100 watt lamp is installed, what might happen? a. the lamp will not last as long as it should because of the excessive voltage b. the luminaire may overheat and cause a fire c. the lamp will not be as bright because of the lower rating of the luminaire d. all of these

b. YES

A receptacle is to be installed on the roof of a doctor's office building. Is this receptacle required to be GFCI protected? a. NO b. YES

d. one of two wires between 3-way switches

A traveler wire is ___. Select one: a. the wiring to a split-wired receptacle b. an out-of-state electrician c. the wiring to a door bell d. one of two wires between 3-way switches

a. lighting outlet

A(n) ___ is a box that contains branch circuit conductors that are connected to a luminaire. Select one: a. lighting outlet b. receptacle outlet c. outlet

d. neither a nor b

Aerial lifts can be modified for the current job if ___. Select one: a. you get permission from your foreman b. it looks safe c. either a or b d. neither a nor b

a. True

All 125-volt, 15- and 20-amp receptacles in a dwelling unit within 6 feet of a wet bar sink must be GFCI protected according to ___ in the NEC . a. True b. False

c. Surge Protective Device

As used in the NEC , SPD is an acronym for ___. a. Separate Portable Disconnect b. Special Process Determination c. Surge Protective Device d. Stationary Position Dimensions

a. 6

Branch-circuit conductors at outlet boxes are required to have at least ___ inches of free conductor for making splices and connections. The length of conductor is measured from the point in the box where it emerges from its raceway. a. 6 b. 12 c. 8 d. 4

c. Double Pole-Single Throw

DPST is an abbreviation for ___-___. a. Single Pole-Double Throw b. Double Pole-Double Throw c. Double Pole-Single Throw d. Single Pole-Single Throw

c. lower than

During a ground fault, the resistance of the return path for current is ___ the resistance of the path taken during normal operation. Assume this is a properly connected circuit. a. higher than b. the same as c. lower than

b. there are no NEC requirements

For stairway lighting, a typical installation is to install a 3-way switching system. For a commercial building, ___ for stairway lighting control. a. this satisfies the NEC requirement b. there are no NEC requirements

a. hot & neutral

GFCIs operate by comparing the amount of current flowing in the ___ circuit conductors of a 120-volt circuit. When these are NOT the same, the GFCI device trips. a. hot & neutral b. ground & neutral c. hot & ground d. none of these

a. neither I nor II

In Figure 128.113, drawing ___ shows the (3-lamp) 2 × 4 luminaire connected so that the "inboard" or 1- lamp ballast is controlled from switch #1 and the "outboard" or 2-lamp ballast is controlled from switch #2. Select one a. neither I nor II b. I only c. II only d. either I or II

a. True

Installing receptacles back-to-back on opposite sides of a wall within the same "stud space" offers the advantage of making the installation easier and cheaper. However, if the wall is fire rated, back-to-back installation might violate the Code unless fire-rated "putty" or fire-rated "listed" boxes are used. a. True b. False

b. There is a flexible wiring method with a separate grounding conductor.

It is permitted to make a surface extension from a cover fastened to a concealed box if which of the following conditions exist? a. There is a rigid extension from the cover. b. There is a flexible wiring method with a separate grounding conductor. c. There is no need to gain access to connections inside the box. d. Any of these

e. either a, or b, or c

Luminaire is a term that refers to ___. Select one: a. incandescent lighting fixtures b. fluorescent lighting fixtures c. outdoor pole-mounted fixtures d. either a or b e. either a, or b, or c

a. both I & II

The Code requires which of the following residential receptacles to be GFCI protected? I. A receptacle installed on a garage ceiling for an automatic garage door operator II. A receptacle installed above a work table in a garage Select one: a. both I & II b. I only c. II only d. neither I nor II

b. luminaire

The international term for a lighting fixture is ___. Select one: a. lumen b. luminaire c. fixture d. lux

e. none of these

The minimum cubic inch capacity of the j-box (shown in Figure 129.110) you could use where circuits A17- 19 (2 "hots" + a neutral") enter the box is ___ in . The circuits are tapped and continue to feed other equipment or outlets. The wiring method is RMC with a 14 AWG grounding conductor installed with the 14 AWG circuit conductors. The Equipment Grounding Conductor is NOT shown on the drawing. Select one: a. 10 b. 14 c. 24 d. 18 e. none of these

a. black

The negative terminal on a battery is generally color coded ___. Select one: a. black b. red

a. put things where they belong

When cleaning up a jobsite at the end of the day, you should ___. Select one: a. put things where they belong b. throw everything away c. pile everything in the middle of the room d. any of these