116 - Box Sizing and Series Circuits (Master Bedroom)

Along a wall line (not separated by doors), the maximum spacing between receptacles in the dining room in a house is ___ feet.

12

The timer for the EWR bedroom hall fan can be set for a maximum of ___.

12 hours

Each battery can deliver 7 amps per hour. Two 12-volt batteries that are connected in parallel can deliver ___ amps per hour.

14

When filling a wet-type battery, such as a vehicle battery, you should fill it with ___.

distilled water

Along a wall line (not separated by doors), the maximum spacing between receptacles in the dining room in a cafeteria is ___.

not specified in the NEC®

The NEC® requires that receptacles be installed so that the grounding slot is located on the ___.

(neither) no NEC® requirement

Type D, C, AA, and AAA batteries are ___-volt batteries.

1.5

What is the current in a circuit if the voltage applied to a load is 492 volts? The connected load contains two series-connected resistive heating elements that are EACH rated for 2.8 KW at 250 volts.

11.02 A

The following is a verbatim NEC® statement: Spaces about battery systems shall comply with NEC® 110.26 and ___. Working space shall be measured from the edge of the battery cabinet, racks, or trays.

110.34

A fork lift has a 36-volt motor that develops 5.2 horsepower and draws 105 amps. The battery bank consists of six batteries with each rated for 6 volts and 215 A-hrs. The fork lift should be able to run about ___ hours at full horsepower before charging the bank.

2

When determining the spacing between wall receptacles, the Code section that specifies whether or not the sliding panels in glass doors in a dwelling are counted in the maximum spacing is ___. Select N/A (not applicable) if there is not a Code reference for this.

210.52(A)(2)(2)

A flashlight uses 4 "D" cell batteries that are inserted end to end in the tubular portion of the flashlight. The lamp for this flashlight must be rated for ___ volts.

6

Ceiling-suspended (paddle) fans are required to be supported by a ___ outlet box. I. marked II. listed III. heavy duty Select one: a. I, II & III b. III only c. I & II only d. II only

I & II only

A standard incandescent dimmer can be used to control which of the following loads? I. incandescent lighting II. a low-voltage lighting transformer III. an exhaust fan Select one: a. III only b. I & II only c. II only d. II & III only e. I only f. I, II & III

I only

When batteries are connected in parallel, the ___ supplied to the connected load increases. I. current II. voltage Select one: a. I only b. II only c. both I & II d. neither I nor II

I only

Can a standard incandescent dimmer be used on a lighting transformer that converts the 120-volt circuit voltage to 12 volts for a low-voltage lighting system?

No

Although a box has been selected to meet the minimum volume requirements of the NEC®, the box may be too small to accommodate the device installation without damage to the wiring. ___ in the NEC®addresses this potential problem.

Section 314.24

True or False: Receptacles that are installed on the exterior of a child-care facility are required by the NEC® to be GFCI protected.

True

The positive terminal on a battery is generally connected to ___.

a fuse block and the vehicle's starter

When giving someone's vehicle a "jump start" using jumper cables, the last connection made is to ___.

a grounded surface in the vehicle with the "dead" battery

Many battery problems are caused by ___ terminal connections. Select one: a. corroded b. loose c. dirty d. all of these

all of these

Ceiling-suspended (paddle) fan speed can be controlled by ___. Select one: a. speed control mounted in a wall box b. remote-control similar to TV/VCR type c. pull chain on the fan d. any of these

any of these

Negative battery terminals are generally have a ___ color marking.

black

When connecting batteries as a bank, each battery should have the same ___ rating. Select one: a. Amp-Hr b. voltage c. both a & b

both a & b

In accordance with 404.2(C)(2), a three-wire cable is installed between a 2-gang switch box and a ceiling outlet box. A fan with a light kit will be installed in the ceiling box. Two 1-pole switches will be installed in the box with one for the fan and one for the light. The white conductor used to feed the "hot" to the switches has to be re-identified with black tape (or equivalent) ___. Select one: a. inside the ceiling box b. inside the switch box c. throughout the entire length of the conductor d. both a and b e. none of these

both a and b

Serviceable battery fluid levels should be maintained by filling with ___.

distilled water

A storage battery is comprised of one or more rechargeable cells of the ___ or other rechargeable electrochemical types. Select one: a. lead-acid b. nickel-cadmium c. either a or b d. neither a nor b

either a or b

The following is a verbatim NEC® statement: Provisions appropriate to the battery technology shall be made for sufficient diffusion and ventilation of gases from the battery, if present, to prevent the accumulation of a(n) ___ mixture.

explosive

Car batteries produce ___ gas.

hydrogen

A standard incandescent dimmer can be used to control which of the following loads? Select one: a. incandescent lighting b. a low-voltage lighting transformer c. either a or b d. neither a nor b

incandescent lighting

A rotary incandescent dimmer ___ suitable for use as a ceiling-suspended (paddle) fan speed control. Select one: a. is b. is not

is not

You have a load that operates at 6 volts but requires more current to operate than a single battery could deliver. To supply enough current to operate the load, you should connect multiple 6-volt batteries in ___.

parallel

The positive terminal on a battery is generally color-coded ___.

red

Ceiling-suspended (paddle) fans must be specially supported for all of the following reasons, except for ___. Select one: a. torque (twisting motion, particularly when first starting) b. safe grounding c. vibration d. weight

safe grounding

Ceiling-suspended (paddle) fans must be specially supported for all of the following reasons, except for ___. Select one: a. weight b. torque (twisting motion, particularly when first starting) c. safe grounding d. vibration

safe grounding

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

series

The negative terminal on a battery is generally connected to ___.

the vehicle frame