The S.I unit of power is……….
a) watt
b) kilowatt
c) joule
d) horse power
Explanation: The S.I unit of power is Watt(W), in honor of James Watt, a Scottish physicists.
Who invented the first practical steam engine?
a) Pascal
b) James Watt
c) Newton
d) Galileo
1Watt = ……………..
a) 1J.s
b) 1N/s
c) 1J/s
d) 1N.s
Explanation: 1Watt = 1joule/1second
In the British system the unit of power is……
a) ft.lb/s
b) cm.lb/s
c) m.lb/s
d) both a & b
Explanation: in the British system, the unit of power is foot-pound per second(ft.lb/s)
Which unit of power is used for practical purposes?
a) watt
b) joule
c) kilowatt
d) horsepower
