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When using a ladder the height to base ratio should be adjusted
1:1
2:1
3:1
4:1
A tool belt should be used when working at a height because
It reduces the chance of dropping a tool which then has to be fetched
It reduces the chances of dropping a tool on someone's head
More tools can be carried in a tool belt
It cam be attched to the top of the ladder to prevent the user falling
A device used to protect a person working outside from electrocution is a(n)
DCR
CRD
RCD
CDR
A residual current device will turn off the mains at about
1 Amp
500 mA
100 mA
30 mA
High voltage capacitors should be discharged using
a voltmeter set to a high reading
an ameter set to a high reading
shorting the capacitor with a piece of wire
shorting the capacitor with a piece of metal with a 100k Ohm resistor in series