Calculations 1
Calculations 2
Calculations 3
Calculations 4
Calculations 5
100
Can a round 4x1/2 in box marked 8 cu in with manufactured cable clamps supplied with 14/2 nm be used with a luminaire that has two 18 awg fixture wires and a canopy cover?
What is yes
100
The ampacity of 154 current carrying 10 rhw aluminum conductors in an ambient temperature of 75 degrees F. is
What is 16amps
100
The ultimate trip overload device of thermally protected 1 1/2 hp 115v motor would be rated no more than.
What is 31.20a
100
What is the feeder/service calculated load for one air conditioner (5hp, 230v) and three baseboard heaters 3kw?
What is 9000va
100
How many 1/0 xhhw conductors can be installed in a trade size 2 flexible metal conduit?
What is 7
200
How many 14 awg conductors can be pulled through a 4x1 1/2 in square box with a plaster ring of 3.60 cu in? THe box contains two duplex receptacles, five 14 awg conductors and two equipment ground conductors.
What is 2
200
What size conductor is required for a 5hp 230v single phase motor? The terminals are rated 75degrees Celsius
What is 10awg
200
What is the feeder/service calculated load for one 6kw and two 3kw cooking aplliances?
What is 9.30 kw
200
What is the feeder/service calculated load for a waste disposal 940 va, dishwasher 1250va and a water heater 4500va?
What is 6690va
200
A 2TW conductor is installed in a location where the ambient temperature is expected to be 102 degrees f. The temperature correction factor for conductor ampacity in this location is?
What is .82
300
If we have a trade size 2 rigid metal conduit and we want to install three thhn compact conductors, what is the largest compact conductor permitted to be installed?
What is 350 kcmil
300
What is the VA input of a dual voltage 5hp three phase motor rated 460/230v?
What is 6055va at 230v and 6055va at 460
300
What is the feeder/ service calculated load for an 11.50 kw range?
What is 8kw
300
What is the feeder/service calculated load for a 4kw dryer?
What is 5kw
300
What is the cross sectional area in sq in for an 8awg bare solid conductor?
What is .013
400
What is the cross sectional area in sq in for 10 thw?
What is.0243
400
The standard overload protectioin device for a 2hp 115v motor that has a full load current rating of 24A and a nameplate rating of 21.50A must not exceed_____.
What is 24.70A
400
How many 15A general-lighting circuits are required for a 2340 sq ft home?
What is 4
400
What AWG size copper conductors are required for single phase 120/240v feeder service conductors for a dwelling unit with a 190 a service calculated load?
What is 2/0 AWG
400
Balance the following loads and determine the load on the neutral in amperes. 3000va, 120v small appliance 1500Va, 120v laundry circuit 1800VA, 120v dishwasher 2000va, 240v dryer 1500 VA, 120V disposal
What is 10amps
500
Motors with a nameplate temperature rise rating not over 40 degrees Celsius must have the overload device sized at no more that ______ percent of motor nameplate rating.
What is 125%
500
A 24a, 240v single phase load is located 160ft from the panel board. The load is wired with 10Awg conductors. What is the approximate voltage drop of the branch circuit conductors?
What is 9.50v
500
What is the total calculated load for general lighting and receptacles, and small appliance and laundry circuits for a 6540 sq ft dwelling unit before applying demand factors?
What is 24120VA
500
An 1800 sq ft residence contains the following: 4kw water heater, one 1.50kw dishwasher, one 4.50kw dryer, two 3kw ovens, one 6kw range, 10kw of space heat separated in five rooms with thermostats in each room, and one 6 kva air conditioner. The 120/240v single phase service for the loads will be____ when using the optional method of calculation.
What is 110a
500
Both units of a duplex apartment require a 100A MAIN; the resulting 200a service will require_____copper conductors.
What is 3/0 awg
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