Multiple Choice Question (MCQ)

Question: Which year along with CNC systems the commercial industrial robot was manufactured?
A. 1972
B. 1870
C. 1930
D. 1961
Correct Answer: 1961
Explanation

A watt-hour (Wh) is a unit of energy, equal to the energy used by a power of one watt for one hour.

A watt-second (Ws) is a unit of energy, equal to the energy used by a power of one watt for one second.

To convert watt-hours to watt-seconds, we can use the following formula:

Watt-seconds (Ws) = Watt-hours (Wh) x 3600

So 1 watt-hour is equal to 3600 watt-seconds.

So if we have 1 watt-hour, it is equal to 1 x 3600 = 3600 watt-seconds