A targeted approach to electrical exam preparation that focuses on the specific subject topics you’ll face on the electrical exam is essential to achieving a passing score on your exam. How would you answer the following question:
400 feet of PVC conduit is installed above grade outdoors. The warmest temperature the conduit will be exposed to is 120 degrees F. The coldest temperature is -20 degrees F. What will be the expansion of the length of the conduit in inches per 100 feet?
A.
B.
C.
Note the Key word: PVC conduit. Look in the index under Rigid metal conduit (Type RMC), expansion fittings.
Article 300.7(B) references Article 352.44 and Table 352.44(A). When using this table find the temperature change in degree F. Next look for that change in the table. Read across to the adjacent Length Change in Inches per 100 ft. of PVC conduit column. The expansion change in length is 5.68 inches.
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.