Ladders, scaffolds and lifts (110101d) Flashcards
what is the cause of 25% of lost workplace time claims?
Falls
What are the factors that determine the ladder that is chosen for the job?
working height
surface conditions
Task
what type of ladder can be used by two people at a time?
double or twin stepladders
What is the maximum capacity of an extra heavy-duty step ladder?
300lbs
what ladder does not conduct electricity?
wood when dry
fiberglass
how far must a extension ladder extend over the building top?
1 meter or 3’
what color should a wooden ladder be painted?
wooden ladders should never be painted, only protected with a transparent LaCour
WHAT IS THE MOST COMMUN SCAFFOLD?
Frame type
what are the types of suspended scaffolds?
Work cage
Swing gate
does a worker need certification and training to operate a lift?
yes to operate but not to help on the lift
rolling scaffolds have what rule in the case of the base to the Hight?
no more that 3 time the smallest base
how are material lifts powered?
hand crank
Compressed air
Co2
What are the 7 type of Ladders?
Stepstool
portable work stand
single ladder (most common)
Double or twin stepladder
Platform ladder
Single ladder
extension ladder
What should never be done on a ladder?
Overreaching
using the last rung or step
sitting on the top
standing on the top unless it is a stepladder or a platform….
what is the ladder ratio?
4:1
what is the max Hight of a free-standing or rolling scaffold?
no more that 3 times the base
what is the load ratting for a scaffold that must be met?
4 times the imposed load
how often should the scaffolding ties be in place for vertical intervals?
4.6meters
how often for horizontal intervals should there be a tie in?
6.4meters
what must a guard rail horizontal top have?
no less than 920mm and no more than 1070 above the base of the guardrail
how far must a scaffold plank extend?
6’ but no more that 12’
what is the minimum of light duty scaffold width?
500mm
what is the minimum of a heavy-duty scaffold width?
1m
