The safest category of electric meters is: A) Category I. B) ...

[tnt_battle]

The safest category of electric meters is:
 
  A) Category I. B) Category II. C) Category III. D) Category IV.

Question 2

A technician pushes a 50-lb box 4 feet in 2 seconds. The work done is:
 
  A) 50 lb  4 ft = 200 ft-lb. B) 4 ft-lb.
  C) 200 ft-lb/2 s = 100 ft-lb/s. D) 50 lb.

[yuyiding]

Answer to Question 1

D

Answer to Question 2

A