Ladder and LPG recap

the correct angle when positioning a ladder is

• 45^o

• 60^o

• 75^o

• 85^o

The correct ratio to be used when positioning a ladder is

• 2 out for every 1 up

• 4 out for every 1 up

• 1 out for every 4 up

• 1 out for every 2 up

a ladder should be secured

• at the top only

• at the bottom only

• at the top and the bottom

• at the top and the bottom plus in the middle

A ladder should extend above a working platform by a minimum of

• 3 - 4 rungs

• 4 - 5 rungs

• 5 - 6 rungs

• it doesn't matter

A stepladder should be positioned face on to the work task

• true

• false

A wooden ladder must not be painted because

• it will make the ladder heavier

• it may make the ladder slippery to hold

• it may hide defects

• it will make the rungs slippery to stand on

the preferred material for step ladders when working near electrics is fibre glass

• true

• false

A ladder should extend above a working platform by at least

• 500mm

• 1000mm

• 1350mm

• 2000mm

One litres of liquid propane creates approximately how much gas

• 150 litres

• 250 litres

• 350 litres

• 1 litre

the relative density of propane is

• 1

• 1.5

• 2

• 2.5