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ECS HS&E Revision > Work at Height > Flashcards

Work at Height Flashcards

1
Q

Most deaths on site are caused by:
A: Vehicle movements
B: Falling from height
C: Solvent inhalation
D: Chemical burns

A

Right Answer: B
Although the other dangers can kill or cause injury,
falling from height is the bigger cause of fatalities.

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1
Q

The type of accident that kills most construction site
workers is:
A: Being hit by falling objects
B: Falling from heights
C: Trench collapses
D: Electrical accident

A

Right Answer: B
Although the other dangers can kill or cause injury,
falling from height is the biggest cause of fatalities.

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2
Q

Approximately 70 workers each year die on
construction sites, the main cause of this is:

A: Fire
B: Falls from height
C: Being run over by plant
D: Excavation collapse

A

Right Answer: B

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3
Q

How many people should be working on a ladder at one time?

A: One on each section of an extension ladder
B: One
C: Two
D: Three if it is long enough

A

Right Answer: B

Only one person should be working on a ladder,
although another person may be footing it, for extra
stability.

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4
Q

Ladders should be set at a slope of approximately:

A: 1 0Ut for every 3 up
B: 4 out for every 1 up
C: 1 out for every 1 up
D: 1 out for every 4 up

A

Right Answer: D

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5
Q

Why should aluminium ladders be kept away from
wet lime or cement?
A: It will stain your clothes
B: The ladder may become statically charged
C: It may corrode the ladder
D: IE will stain the aluminium

A

Right Answer: C
Aluminium can corrode in certain situations, notably
if in prolonged contact with lime or cement.

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6
Q

Ladders should be:

A: In good condition
B: Tied or footed
C: Tied or footed AND at the right angle AND in
good condition
D AL the right angle

A

Right Answer: C
All the measures listed are required to reduce the
risk of falls.

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6
Q

Before being used, a ladder should be inspected:

A: By the foreman
B: By the user
C: By the manufacturer
D: By the Safety Officer

A

Right Answer: B
The user needs to be satisfied that the ladder is in a safe condition before using it.

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7
Q

A ladder giving access to a scaffold can generally be
safely used, provided that:

A: The foot of the ladder is firmly wedged

B: It does not move when you climb up it

C: Any broken rungs are clearly marked

D: It is tied and extends at least 1 metre above
the platform

A

Right Answer: D
Access ladders should extend at least 1 metre above
the landing point to provide a safe handhold.

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8
Q

What is the ideal angle for a ladder against a wall
and floor?

A: One metre up for every metre out from the
wall
B: One metre up for every two metres out from
the wall
C: Two metres up for every metre out from the
wall
D: Four metres up for every metre out from the
all

A

Right Answer: D

The correct angle for a ladder is 75 degrees, which
an be judged using the angle indicator marked on
the stiles of some ladders or using the 1in 4 rule.

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9
Q

The rung of a wooden ladder has started to split,
what should you do?

A: Do not use it, tell your supervisor
B: Cut the bad bit out
C: Tape it up
D: Jump on it to see if it holds your weight

A

Right Answer: A
It is essential that supervisors are aware of faulty or damaged equipment.

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10
Q

Ladders should not be painted because:

A: Regular repainting will be necessary
B: The paint will make them slippery to use
C: The paint may not be suitable on metal parts
of the ladder
D The paint may cover a defect or damaged

A

Right Answer: D

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11
Q

When can you work from a ladder?

A: For short periods and then only if it is safe to
do so
B: When it is long enough
C: When it is available
D: When not being used for access

A

Right Answer: A

Ladders are primarily means of access, not
workplaces. They can be worked from, but only if
the use of other, more suitable, work equipment is
not appropriate and the task is of low risk and of
short duration.

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12
Q

When working above public areas, what should be
considered?

A: Preventing complaints from the public
B: The danger of falling materials
C: Keeping the job going
D: Keeping the areas open to the public

A

Right Answer: B

There is a significant risk to the public from falling
materials, if this is not considered before and during
work.

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13
Q

A scaffold tower must be erected by:

A: A trained and competent person
B The hire company who supply it
C: The site foreman
D Senior site staff

A

Right Answer: A

There are a number of organizations that provide
training for the safe erection and use of tower
scaffolds.

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14
Q

What is the minimum height of the top guard-rail of
a scaffold above the edge from which someone is
liable to fall?

A: 470mm
B: glomm
C: 950mm
D: 2 metres

A

Right Answer: C
This is a requirement of the Work at Height
Regulations 2005.

15
Q

A working platform used for construction work, and
from which a person could fall 2 metres or more,
must not be used unless it has been inspected (and a
report is subsequently prepared) by a competent
person:
A: Only after an accident
B That day
C: Within the previous seven days
D Within the previous month

A

Right Answer: C

Under these specific circumstances a report is
required to be prepared by the competent person
and given to the person for whom the inspection
was done (e.g. the site manager). This is in addition
to the more general requirement to inspect
equipment for work at height: prior to use in that
position (or site if it is mobile); following
exceptional circumstances (e.g. high winds); and at
suitable intervals.

16
Q

On a mobile elevating work platform, what should
you attach your safety harness to?

A: A secure anchorage point inside the platform
B: A strong part of the structure you are working
on
C: The boom of the machine
D: A nearby pipe or scaffold

A

Right Answer: A

The priority is to stay within the platform (which is
the safest place), and in any event you cannot be
sure of the strength of other fixtures.

17
Q

You have been asked to operate a cherry-picker
(mobile elevated work platform) when it is very
windy. What should your FIRST consideration be?

A: Wear a safety harness and clip it to the
structure that you are working on
B:Does the wind-speed make it unsafe to use
the machine
C: Wear an extra layer of clothing to keep warm
D: Tie all light-weight objects to the hand-rails
of the basket

A

Right Answer: B

The priority in safety is eliminating risk at
source - in this case by not working in dangerous
conditions - rather than trying to stay safe by using
protective equipment.

17
Q

If you have to work at height and it is not possible to
erect a scaffold, or use any other type of working
platform or mobile elevating work platform, then you
should:
A: Work without fall protection, provided you
have a mate with you
B: Wear a harness and lanyard at all times
Work without fall protection, provided the
weather is not too windy
C: Work without fall protection at all times
D: when no one else is about

A

Right Answer: B
The harness will greatly reduce the likelihood of
injury if you fall.

18
Q

When working on a roof that has fragile, clear-plastic panels, what is the best way of preventing falls through the panels?
A: Make sure that everyone is told where the
panels are and to avoid treading on them
B: Cover the fragile panels with a strong
material and secure the covers to stop them
being dislodged
C: Remove the panels carefully to leave an
open space.
D: It shouldn’t be necessary to do anything,
everyone knows the dangers

A

Right Answer: B

Protection from falling through openings and fragile
roof lights can be provided by barriers or with
covers which can be secured or labelled with a
warning.

19
Q

When working on fragile roofs:

A: It is safe to walk on the purlins
B: Walk straight across the roof to where you
need to get to
C: As long as you avoid any fragile areas it is
safe
D: Crawling boards should always be used

A

Right Answer: D
Fragile roofs must be made safe to work on, before
work commences.

20
Q

Half the deaths on construction sites are caused by
which one of the following?

A: Falls from heights
B: Electrical misuse
C: Working in trenches/confined spaces
D: Misuse of plant and machinery

A

Right Answer: A
This is shown by HSE statistics.

21
Q

What should you do if your work activity requires you to wear a full body safety harness and one is not available?

A: Make a harness from items found on site
B: Carry on working and hope that everything
will be alright
C: Borrow a harness from a colleague
D: Stop work immediately and tell your
supervisor that you do not have the correct
PPE

A

Right Answer: D
Always advise the supervisor if you do not have the
correct PPE.

22
Q

Under what circumstances do the Work at Height
Regulations permit a stepladder to be used on site?
A: Never — stepladders are banned At any time
B: At any time
C: Provided you can’t fall 2 metres or more
D: Only when a risk assessment shows that safer alternatives have been ruled out and
the task is of low risk and of short duration

A

Right Answer: D

The WAH Regulations have not banned the use of
ladders or stepladders, but they should be used
sensibly.

23
Q

What is the best method of securing a ladder?
A: Tying it to a suitable point
B Using an effective ladder stability device
C: Wedging the ladder (e.g. against a wall)
D Having the ladder footed

A

Right Answer: A
Tying the ladder is the safest option, making sure
both stiles are tied.

24
Q

Of the following, which is the poorest method of
securing a ladder?

A:Securing the base of the ladder
Tying the ladder
B:Trying the ladder
C:Having someone foot the ladder
D:Using a ladder stability device

A

Right Answer: C

Footing a ladder is the last resort and should be
avoided. Other more suitable access equipment
should be used where practicable.

25
Q

Prior to moving a mobile tower scaffold, the platform height should reduced to a maximum of:
A:2 metres
B:3 metres
C:4 metres
D:5 metres

A

Right Answer: C

This figure is quoted in guidance published by the
HSE and PASMA. Checks should also be made that
there are no obstructions overhead, the ground is
firm, level and free from potholes, it is not too
windy and there are no people or materials on the
tower.

ECS HS&E Revision (12 decks)

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