15 Questions  Settings  So, you may not be a professor of mathematics, but just because you’re not going to be spending the rest of your life solving mind-boggling equations doesn’t mean you shouldn’t have at least the bare minimum of knowledge when it comes to maths! In this quiz we’ll be seeing if your math skills add up or if you need to put your nose in a book and read up on numbers! Good luck!

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• 1.
The rate of the flow of the current is equal to the electromotive force divided by resistance.
• A.

Pythagorean Theorem

• B.

Ohm’s Law

• C.

Olin’s Law

• D.

Horsepower

• 2.
An appliance is rated at 1,200 watts, and is connected to 120 volts. How much current will it draw?
• A.

1A

• B.

10A

• C.

100A

• D.

Cannot be determined from the information given

• 3.
The total voltage in a series circuit is equal to the sum of the voltages across all parts of the circuit
• A.

True

• B.

False

• 4.
The total resistance of a series circuit can never be greater that the largest resistance of a single point on a circuit.
• A.

True

• B.

False

• 5.
The Ohm’s Law pie chart contains four quadrants. They represent
• A.

Volts, amps, Ohms, horsepower

• B.

Volts, amps, Ohms, impedance

• C.

Watts, amps, Ohms, inductance

• D.

Volts, amps, Ohms, watts

• 6.
In a parallel circuit, the total resistance is _________________  the resistance of any branch
• A.

Always greater than

• B.

Always equal to

• C.

Always less than

• D.

Never less than

• 7.
A resistor has a color code of yellow, violet, red, and gold. What is the value of the resistor, including the tolerance?
• A.

4,700 Ohms, +/- 5%

• B.

4.7 Ohms, +/- 10%

• C.

2,400 Ohms, +/- 5%

• D.

24 Ohms, +/- 10%

• E.

3,300 Ohms, +/- 5%

• 8.
Three resistors in parallel. Each has a value of 12 Ohms resistance. What is the total resistance of the circuit?
• A.

36 Ohms

• B.

4 Ohms

• C.

40 Ohms

• D.

3.6 Ohms

• 9.
A 12v circuit draws a current of 5 amperes. What is the power consumption (watts)?
• A.

2.4 watts

• B.

60 watts

• C.

.416 watts

• D.

None of the above

• 10.
A 4 in. x 1 ¼ in. round or octagonal box has a capacity of 12.5 cubic inches. How many number 18 gauge red fire alarm wires can the box hold?
• A.

4

• B.

8

• C.

16

• D.

12

• 11.
A half-inch, trade-size EMT conduit has a maximum fill capacity of ________ % with _________ wire(s).
• A.

31%, 4; 40%, 2; and 53%, 1

• B.

31%, 2; 40%, 3; and 53%, 1

• C.

40%, 3 or more; 50%, 2; and 60%, 1

• D.

53%, 1; 40%, more than 2; and 31%, 2

• 12.
A2 + B2 = C2 is also referred to as:
• A.

Pylorus’ Theorem.

• B.

Pythagorean Theorem.

• C.

An isosceles triangle.

• D.

A rhombus.

• 13.
• A.

6 in

• B.

18 in

• C.

24 in

• D.

3 ft

• 14.
The circumference of a circle can be calculated using the following formula:
• A.

• B.

• C.

Radius x square root of 3.1416

• D.

A2 + B2 = C2

• 15.
The total resistance of a number of equal resistors in parallel is __________ the resistance of one resistor divided by the number of resistors.
• A.

Less than

• B.

Greater than

• C.

Equal to

• D.

The sum of