Passing the master or journeyman electrical exam requires careful, targeted, focused exam preparation. Electrical code classes that quickly rush through material that you need time to understand, or do-it-yourself electrician study guides that don’t address your specific needs aren’t likely to get you to a passing score on your electrical exam.
Here’s an example of why preparation is critical to passing your electrical examination.
Question:
What is the kVA rating on the primary side of a transformer winding that is 100% efficient if a 10 amp load on the secondary side operates at 24 volts?
A. 0.06 kVA
B. 0.12 kVA
C. 0.24 kVA
D. 0.48 kVA
Solution:
C. 0.24 kVA
Use the following formula to find the kVA:
kVA = E x I x Pf/1000
= 24 volts x 10 amps x 100%/1000
= 240va/1000
= 0.024 kVA
Knowing how to answer these kinds of exam questions is key to passing the electrical exam. Prepare for success. Click on the “Register Now” tab of call 888-919-3926 today.