plumbing science Flashcards
what is the measurement for power
watts
what does DC stand for
Direct current
what does AC stand for
Alternating current
What is the unit for electromotive force
voltage
what is the unit for electrical energy
JOULES
what is the voltage of domestic property
230v or 240v
what is ohms law
voltage – current – resistance
what is an example of a DC
A battery
How much is a Kw
1000
what makes up the Ohms triangle
voltage = current * resistance
what does the Earth wire do
takes the electricity back down to the earth instead of through you
what does the Residual circuit breakers do
trip out if there is an earth fault
where is a circuit breaker found
found in modern consumer units
At what Ma will the circuit breaker trip
30Ma
why is stainless steal preferred over other metals in plumbing
It is highly resistant to rust and corrosion
