EEI TECH EEI Tech Mathematical Usage 3

Question 1

A motor runs for 8 hours consuming 3.5 kW. How many kWh does it use?

Accepted Answer

28 kWh

Answer

Energy = 3.5 kW × 8 hr = 28 kWh.

Question 2

Which decimal is equivalent to 7/8?

Accepted Answer

0.875

Answer

7 ÷ 8 = 0.875.

Question 3

A pipe 48 inches long must be cut into 4 equal sections. How long is each section in feet?

Accepted Answer

1 ft

Answer

48 ÷ 4 = 12 inches = 1 foot.

Question 4

Power (P) = Current² × Resistance. If I = 4 A and R = 6 ohms, what is P?

Accepted Answer

96 W

Answer

P = 4² × 6 = 16 × 6 = 96 watts.

Question 5

If a blueprint scale is 1 inch = 12 feet, how long is a wall shown as 3.5 inches on the plan?

Accepted Answer

42 ft

Answer

3.5 × 12 = 42 feet.

EEI TECH Test Practice Test