CH 116
battery
An enclosure containing chemicals that produce electrons through an electrochemical reaction.
ampere-hour capacity
The amount of usable energy a battery can store at a nominal voltage.
RC (reserve capacity)
The number of minutes that a fully charged battery (at 80°F) can deliver 25 amperes while keeping its voltage above 10.5 volts.
power
The product of voltage and current and is measured in watts.
Two 10 AWG circuit conductors and a 10 AWG equipment grounding conductor that enter through one conduit and exit another conduit can be spliced with wire nuts inside an "LB" if the "LB" is marked with a cubic inch capacity of at least ___ cubic inches. Select one: a.12.5 b.15 c.10 d.
a. 12.5
The Code section that specifies that exterior receptacles for a child-care facility are required to be GFCI protected is ___. Select one: a.210.8(B)(6) b.210.8(A)(8) c.210.8(B)(1) d.210.8(A)(3)
a. 210.8(B)(6)
Car batteries produce ___ gas. Select one: a.hydrogen b.propane c.methane d.none of these
a. hydrogren
The positive terminal on a battery is generally color-coded ___. Select one: a.red b.black
a. red
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. Select one: a.Section 314.24 b.Nothing c.Section 314.19 d.Section 406.2
a. section 314.24
Outlet boxes shall not be used for the sole support of paddle fans, unless they are ___. Select one: a.sturdy enough b.listed for the purpose c.pre-installed d.reinforced
b listed for the purpose
The timer for the EWR bedroom hall fan can be set for a maximum of ___. Select one: a.1 hour b.12 hours c.15 minutes d.24 hours
b. 12 hours
The Code section that specifies that white conductors in a cable assembly must be re-identified where used to "feed" a switch is ___. Select one: a.200.6(A) b.200.7(C)(1) c.200.7(A)(1) d.200.10(D)
b. 200.7(C)(1)
The positive terminal on a battery is generally connected to ___. Select one: a.the vehicle frame b.a fuse block and the vehicle's starter
b. a fuse block and the vehicles starter
Negative battery terminals are generally have a ___ color marking. Select one: a.red b.black
b. black
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. Select one: a.corrosive b.explosive c.volatile d.ignitable e.flammable
b. explosive
For determining the spacing between wall receptacles in a dwelling, the sliding panels in glass doors are counted in the maximum spacing. Select one: a.True b.False
b. false
Two batteries would be connected in parallel to get a ___ than is available from one battery. Select one: a.higher total output voltage b.higher total current c.lower total output voltage
b. higher total current
A standard incandescent dimmer can be used to control which of the following loads? Select one: a.a low-voltage lighting transformer b.incandescent lighting c.either a or b d.neither a nor b
b. incandescent lighting
The negative terminal on a battery is generally connected to ___. Select one: a.a fuse block and the vehicle's starter b.the vehicle frame
b. vehicle frame
Along a wall line (not separated by doors), the maximum spacing between receptacles in the dining room in a house is ___ feet. Select one: a.6 b.10 c.12 d.20
c. 12
When giving someone's vehicle a "jump start" using jumper cables, the last connection made is to ___. Select one: a.the negative post on the "dead" battery b.the negative post on your battery c.a grounded surface in the vehicle with the "dead" battery d.any of these
c. a grounded surface in the vehicle with the "dead" batery
When connecting batteries as a bank, each battery should have the same ___ rating. Select one: a.voltage b.Amp-Hr c.both a & b
c. both a & b
Serviceable battery fluid levels should be maintained by filling with ___. Select one: a.a baking soda and water mix b.hydrogen peroxide c.distilled water d.any of these
c. distilled water
When filling a wet-type battery, such as a vehicle battery, you should fill it with ___. Select one: a.bottled drinking water b.electrolyte acid c.distilled water d.any of these
c. distilled water
A storage battery is comprised of one or more rechargeable cells of the or other rechargeableelectrochemical types. Select one: a.nickel-cadmium b.lead-acid c.either a or b d.neither a nor b
c. either a or b
Type D, C, AA, and AAA batteries are ___-volt batteries. Select one: a.12 b.24 c.3 d.1.5 e.6
d. 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. Select one: a.22.32 amps b.22.04 amps c.11.2 amps d.11.02 A e.11.38 A
d. 11.03 A
The transistor-type batteries used in a smoke detectors have a voltage rating of ___. Select one: a.1.5 b.3 c.6 d.9 e.12
d. 9
A 125-volt, 15- or 20-ampere receptacle installed outside a house is required to be ___. Select one: a.GFCI protected b.weatherproof c.a minimum of 3 feet above grade d.a and b only
d. a and b only
Many battery problems are caused by ___ terminal connections. Select one: a.corroded b.dirty c.loose d.all of these
d. all
Ceiling-suspended (paddle) fan speed can be controlled by ___. Select one: a.pull chain on the fan b.speed control mounted in a wall box c.remote-control similar to TV/VCR type d.any of these
d. any
The NEC® requires that receptacles be installed so that the grounding slot is located on the ___. Select one: a.bottom or right side b.top or left side c.either a or b d.(neither) no NEC® requirement
d. neither / no NEC requirement
The NEC® at 314.27(C) states that listed outlet boxes or outlet box systems that are listed and marked for the purpose shall be permitted to support ceiling-suspended fans (paddle type) that weigh ___ pounds or less. Select one: a.20 b.40 c.35 d.50 e.70
e. 70
A golf cart has a bank of six 6-volt batteries to run its 36-volt motor. The motor develops 5.2 horsepower and draws 105 amps. Each battery in the bank is rated for 6 volts and 215 A-hrs. The total capacity of the bank is ___ VA-hrs. Select one: a.546 b.215 c.1290 d.3780 e.7740
e. 7740
The Code section that specifies the maximum spacing between wall receptacles in a restaurant is ___. Select N/A (not applicable) if there is not a Code reference for this. Select one: a.210.52(C)(1) b.210.52(A)(2)(1) c.210.52(A)(2)(2) d.210.52(C)(4) e.N/A
e. n/a
Where two 12-3 with ground AC cables (with external connectors) are installed, what is the smallest metal box listed below that can be used for a box containing a duplex receptacle? Select one: a.3" x 2" x 21/4" (switch) device box b.4" x 21/8" x 21/8" (handy) device box c.3" x 2" x 31/2" (switch) device box d.33/4" x 2" x 21/2" masonry box e.None of these is large enough
e. none
