Calculations

Couldn't confirm presence of Flash 7 or higher because JavaScript was disabled.Get FlashI really do have Flash installed.ul{margin-top:0px;margin-bottom:0px;list-style-type:none;padding-left:20px;}All the question's and answer's in this Quiz are found in Tom Henry's book, "Calculations for the Electrical Exam".1. A dwelling has total of 2500 sq.ft., how many 15 amp circuits are required for the general lighting?

[ ] a. 2

[ ] b. 3

[ ] c. 4

[ ] d. 5

2. What is the feeder neutral demand for six-4.5kw household clothes dryers?

[ ] a. 18.9kw

[ ] b. 21kw

[ ] c. 27kw

[ ] d. 15.7kw

3. What is the ampacity for a #6 THW copper conductor in a conduit 20" long with 24 other current carrying conductors?

[ ] a. 65a

[ ] b. 52a

[ ] c. 45.5a

[ ] d. 39a

4. The area of square inch for a #3 bare copper conductor is _____sq.in.

[ ] a. 0.087

[ ] b. 0.053

[ ] c. 0.260

[ ] d. 0.042

5. What is the maximum demand for 65-14kw household ranges?

[ ] a. 81.125kw

[ ] b. 73.75kw

[ ] c. 48.75.kw

[ ] d. 25kw

6. What is the area of square inches of a #6 bare copper grounding electrode conductor?

[ ] a. 26,240

[ ] b. 0.184

[ ] c. 0.027

[ ] d. 0.146

7. What is va input of a fully loaded three phase, 208v, 3 hp motor?

[ ] a. 9.6va

[ ] b. 10.6va

[ ] c. 2196va

[ ] d. 3819va

8. What is the va to a fully-loaded 5hp 208v three phase motor?

[ ] a. 3000-4000

[ ] b. 4000-5000

[ ] c. 5000-6000

[ ] d. 6000-7000

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