1. what is the current rating of a battery that can produce six amps of current for a period of four hours?
a. 12 ampere-hours
b. 2 ampere-hours
c. 24 ampere-hours
d. 6 ampere-hours
student d
incorrect
reference:
4. a source of dc voltage that converts light to voltage is a
a. lithium battery.
b. photovoltaic cell.
c. primary cell.
d. generator.
student c
incorrect
reference:
7. a wire gage tool should only be used to measure
a. conductors in line circuits.
b. conductors larger than size 00.
c. service entrance cables.
d. conductors in a disconnected circuit.
student c
incorrect
reference:
10. what type of wire is used in very high temperature locations, such as electric heater assemblies?
a. nickel chromium wire with fiberglass insulation
b. copper wire with tffn insulation
c. copper wire with fep insulation
d. nickel chromium wire with fep insulation
student d
incorrect
reference:
11. what is the conductivity of lead as compared to silver?
a. 7
b. 61
c. 15
d. 30
student a
incorrect
reference:
16. what is the voltage produced by a standard lithium cell?
a. 3.0 vdc
b. 4.2 vdc
c. 2.1 vdc
d. 2.6 vdc
student c
incorrect
reference:
17. when cleaning a storage battery, you can use a solution of water and ammonia, or a solution of water and
a. ammonium chloride
b. nickel hydroxide
c. baking soda
d. sulfuric acid
student a
incorrect
reference:
18. what is the output capacity of a high-rate discharge/rapid charge nicad battery?
a. 1,400 mah
b. 600 mah
c. 1,200 mah
d. 2,800 mah
student c
incorrect
reference:
22. which of the following measuring instruments is used to test the quality of wire insulation?
a. megohm meter
b. volt-ohm-milliameter
c. oscilloscope
d. digital vom
student d
incorrect
reference:
24. a worker is using a soft wire brush attached to an electric drill to clean a storage battery. what is wrong with this method?
a. the wire brush could flake off small particles of dirt that can block the vent holes.
b. the drill could create a spark and ignite the gases that normally surround a battery.
c. the wire brush can remove too much material from the posts of the battery.
d. the wire brush could leave metallic deposits near the posts that will short the battery.
student d
incorrect
reference:
25. what type of lithium battery has a flat discharge rate?
a. polycarbon monofloride
b. manganese dioxide
c. lithium pentoxide
d. nickel hydroxide
student c
incorrect
reference: