The unit of home electricity energy consumption is:

(A) Watt hour
(B) Kilowatt hour
(C) Joule hour
(D) Kilojoule hour

Q. The Kilowatt hour is a unit of energy equal to ______ megajoules. 
(A) 3.6
(B) 4.6
(C) 5.6
(D) 6.6

Q. The derived unit of energy within the International System of Units (SI) is:
(A) watt
(B) joule
(C) kilojoule
(D) None of these

Answers:
1. (B) Kilowatt hour
2. (A) 3.6
3. (B) joule