Pent-Up Demand Equals Bright Future for Licensed Electricians

March 18, 2021
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As more vaccinations are administered and infection rates decline, states will ease Covid-19 restrictions. The pent-up demand for licensed electricians to work on new construction, maintenance and repair projects is high nationwide.

Choose electrical exam prep that will prepare you to pass your exam and pull your own permits. That’s the only way to position yourself to take advantage of opportunities that will increase your earning potential.

Preparing to pass your electrical exam means preparing to answer questions like the following:                                         

What is the amperage of a 7.5 HP, 230-volt, three-phase induction motor with a power factor of 80 percent and an operating efficiency of 80 percent?

A. 38.01 amps

B. 30.41 amps

C. 24.33 amps

D. 21.95 amps

Solution:
D. 21.95 amps
To answer this question you’ll need to know:
Why is 1.732 included in the equation?
What is the difference between power factor and efficiency?
If the power factor and efficiency rating is 80 percent, why do both need to be included in the equation?

I = Watts ÷ E x PF x Eff X 1.732

= 5,595 watts ÷ 254.95 volts

= 21.95 amps

Electrical exam questions require that you understand the steps you’ll need to follow to arrive at the correct answer. Prepare for success. Click on the “Register Now” tab or call 888-919-3926 today.
Electrical Exam Prep