2026 QUESTIONS WITH CORRECT
ANSWERS GRADED A+
◍ 1 kw.
Answer: 1000 W
◍ Voltmeter (and how to use?).
Answer: A device used to measure voltage, or electrical potential energy
difference.To use: turn the voltmeter to a higher setting than the maximum
expected voltage. Touch the black to negative and the red to positive.
◍ Ohmmeter.
Answer: A device used to measure resistance. Multimeters can function as
ohmmeters.
◍ Apparent Power.
Answer: In AC transmission, the measure of Volts times Amperes:
Voltamperes (VA).
◍ 1 mw.
Answer: 1000 kw
◍ 1 gw.
Answer: 1000 mw
◍ Current at which body's muscles contract?.
Answer: 10 Milliamperes (aA)
◍ STC, PTC, NOCT, and CEC.
Answer: STC - 1000 w/m^2, 25 degree module temp, 1.5 atmospheresPTC -
1000 w/m^2, 20 degree ambient temp, 1.5 atmospheres, 1 m/s wind speed
(this results in a module temp of about 50 degrees)NOCT - 800 w/m^2, 20
, degrees ambient, 1 m/s wind speedCEC - Same as PTC
◍ Voltage Drop (what does length/diameter of cable do to voltage drop?).
Answer: A decrease in voltage along a conductor through which current is
flowing. As the length of the cable increases, so does its resistance. To
decrease voltage drop in a circuit, you can increase the diameter of the
conductors.
◍ NEC.
Answer: National Electric Code. It is a federal regulation, but enforcement is
typically at the local level.
◍ Grid tied.
Answer: disconnect from grid when grid is down
◍ diversion load.
Answer: An auxiliary load that is not a critical system load, but is always
available to utilize the full array power in a useful way to protect a battery
from overcharge.
◍ anti islanding.
Answer: inverter can't operate alone from grid
◍ microgrid.
Answer: small grid of electricity as small as your own home or as big as a
village
◍ AC coupled.
Answer: use battery inverters to create voltage so interactive inverter can
work without utility
◍ NRTL.
Answer: National Recognized Testing Laboratory
◍ Multimodal.
Answer: can operate as grid tied and off gridmust disconnect from grid
when it goes downcontinue to feed power to a subpanel of specific
loadssometimes known as bimodal inverters
, ◍ Direct/direct coupled pv system.
Answer: most simple system - PV and load (ex. solar attic fan)
◍ NEC for self regulating systems.
Answer: battery cannot charge over 3% capacity in an hour
◍ self regulating systems.
Answer: designed so loads are small relative to battery, so it can survive
dark winter days
◍ 6 feet.
Answer: height at which you need fall protection
◍ 3 feet.
Answer: height of ladder above roof
◍ Maximum voltage on storage batteries for dwellings?.
Answer: Storage batteries for dwellings shall have the cells connected so as
to operate at less than 100 volts.
◍ 1:4.
Answer: ladder ratio
◍ ampacity.
Answer: ability of wire to carry current
◍ DSIRE.
Answer: Database of state incentives for renewables
◍ IREC.
Answer: Interstate REC Standard Foudation
◍ gap in circuit.
Answer: electrons travel through air, causing arc
◍ OCPD.
Answer: fuses and circuit breakers
◍ DC to dc converter.