Which of the following is a recognized type of twist-on pigtail connectors (wire nuts)?
What is fixed spring
100
A material that contains few free electrons and offers great resistance to current flow is considered to be a(n)?
What is insulator
100
convert 50MHz to kilohertz
What is 50,000kHz
100
Choose an equation to solve for current (I), which is directly proportional to voltage (V) and inversely proportional to resistance (R).
What is I=E/R
100
The _______ of a conductor is defined as the diameter of the conductor in mils, squared
What is circular-mil area
200
The outer shell of a twist on wire connector provides?
What is an insulation housing for the connectors
200
Which is the second most popular material used in the fabrication of electrical conductors?
What is aluminum
200
convert 500milliamps to microamps
What is 500,000 microamps
200
Solve for R in the equation below.
Given: E=120, I=20
I=E/R
What is R=6ohms
200
To find the area of a wire in circular mils, square the diameter expressed in?
What is mils
300
When joining solid and stranded wires in a wire nut, the stranded conductor should be positioned to?
What is lead the solid conductor in the splice
300
What prefix has been designated for conductor insulation that is suitable for wet locations?
What is W
300
convert 0.2amps to milliamps
What is 200mA
300
Solve for C in the equation below.
Given: A=18, B=8, D=4
A=BC/D
What is C=9
300
What is the circular mil area of a 7 strand wire, where each strand has a diameter of 146 mils?
What is 149,212 circular mils or cm
400
When a splice is installed underground the splice equipment must be?
What is listed for the use
400
What is the significance of the "2" in the conductor insulation designated "RHW-2"?
What is This insulation is permitted to be used at a continuous 90 degree C operation temperature
400
Converting whole numbers to prefixed numbers is accomplished by _______ the whole number by the value of the prefix.
What is dividing
400
Solve for E in volts.
Given: E=IR
I=150 microamps
R=450 kilo ohms
What is 67.5 volts
400
Convert 312.5mils to inches.
What is 0.3125 in (5/16 in)
500
During the process of terminating a properly stripped aluminum conductor in a mechanical screw-type connector, the installer should _______ the conductor and apply a listed aluminum joint compound on the exposed aluminum conductor(s).
What is wire brush
500
Standard ratings for listed type _____ cable include 600 volts, 2000 volts, 5000 - 35,000 volts insulated aluminum conductors.
What is MC
500
How long is a 10 foot piece of conduit expressed in meters?
Given: 1 inch = 0.0254 meters
What is 3.0 meters
500
Find the value of A in the equation.
Given: B=13 H=5
A=BH/2
What is 32.5
500
Use the Approximation Method, determine the resistance of 3500 feet of No. 10 copper wire (cmil=10,380).