NABCEP Associate:- Questions With Clear Solutions
1 kw Right Ans - 1000 W
1 mw Right Ans - 1000 kw
1 gw Right Ans - 1000 mw
Grid tied Right Ans - disconnect from grid when grid is down
anti islanding Right Ans - inverter can't operate alone from grid
microgrid Right Ans - small grid of electricity as small as your own home or
as big as a village
AC coupled Right Ans - use battery inverters to create voltage so
interactive inverter can work without utility
Multimodal Right Ans - can operate as grid tied and off grid
must disconnect from grid when it goes down
continue to feed power to a subpanel of specific loads
sometimes known as bimodal inverters
Direct/direct coupled pv system Right Ans - most simple system - PV and
load
(ex. solar attic fan)
NEC for self regulating systems Right Ans - battery cannot charge over 3%
capacity in an hour
self regulating systems Right Ans - designed so loads are small relative to
battery, so it can survive dark winter days
6 feet Right Ans - height at which you need fall protection
3 feet Right Ans - height of ladder above roof
1:4 Right Ans - ladder ratio
, ampacity Right Ans - ability of wire to carry current
gap in circuit Right Ans - electrons travel through air, causing arc
OCPD Right Ans - fuses and circuit breakers
power x time Right Ans - energy (equation)
voltage (definition, unit, symbol) Right Ans - electrical pressure
Volts
V or E
current (definition, unit, symbol) Right Ans - electrical flow
Amps
I or A
power (definition, unit, symbol) Right Ans - rate at which electricity is used
Watts
P
energy (definition, unit, symbol) Right Ans - amount of electricity used
kilowatt hours
Wh or kWh
voltage x current Right Ans - power (equation)
VxA Right Ans - W (equation)
VxI Right Ans - P (equation)
when converting to larger units Right Ans - your final number will be
smaller
unit used when talking about battery capacity Right Ans - Amp hour (Ah)
Ah x V Right Ans - Wh (watt hour) (equation)
IxR Right Ans - V (ohm's law)
1 kw Right Ans - 1000 W
1 mw Right Ans - 1000 kw
1 gw Right Ans - 1000 mw
Grid tied Right Ans - disconnect from grid when grid is down
anti islanding Right Ans - inverter can't operate alone from grid
microgrid Right Ans - small grid of electricity as small as your own home or
as big as a village
AC coupled Right Ans - use battery inverters to create voltage so
interactive inverter can work without utility
Multimodal Right Ans - can operate as grid tied and off grid
must disconnect from grid when it goes down
continue to feed power to a subpanel of specific loads
sometimes known as bimodal inverters
Direct/direct coupled pv system Right Ans - most simple system - PV and
load
(ex. solar attic fan)
NEC for self regulating systems Right Ans - battery cannot charge over 3%
capacity in an hour
self regulating systems Right Ans - designed so loads are small relative to
battery, so it can survive dark winter days
6 feet Right Ans - height at which you need fall protection
3 feet Right Ans - height of ladder above roof
1:4 Right Ans - ladder ratio
, ampacity Right Ans - ability of wire to carry current
gap in circuit Right Ans - electrons travel through air, causing arc
OCPD Right Ans - fuses and circuit breakers
power x time Right Ans - energy (equation)
voltage (definition, unit, symbol) Right Ans - electrical pressure
Volts
V or E
current (definition, unit, symbol) Right Ans - electrical flow
Amps
I or A
power (definition, unit, symbol) Right Ans - rate at which electricity is used
Watts
P
energy (definition, unit, symbol) Right Ans - amount of electricity used
kilowatt hours
Wh or kWh
voltage x current Right Ans - power (equation)
VxA Right Ans - W (equation)
VxI Right Ans - P (equation)
when converting to larger units Right Ans - your final number will be
smaller
unit used when talking about battery capacity Right Ans - Amp hour (Ah)
Ah x V Right Ans - Wh (watt hour) (equation)
IxR Right Ans - V (ohm's law)
