Special Site Hazard Flashcards
Why may a confined space be dangerous to work in?
A - There may not be sufficient working space
B - Air in the space may be unbreathable due to
poisonous gas
C - Temperature and poor ventilation may affect
the worker
D - All of the hazards mentioned
D - All of the hazards mentioned
What must be considered first when planning to
carry out work in a confined space?
A - Has the job been priced properly
B - Have the correct tools been arranged
C - Has sufficient manpower been allocated
D - Can the work be done from the outside
D - Can the work be done from the outside
When working in a confined space, such as a sewer,
what danger may occur?
A - Getting wet through
B - Boredom
C - Not enough time for the job to be done
D - Build up of harmful gases
D - Build up of harmful gases
To determine the safety of the atmosphere in an
excavation, which of the following is essential
A - Sniffing the atmosphere after entry B - Using a gas detector C - Only entering for a short period to enable a quick escape D - Looking for toxic gases
B - Using a gas detector
Before entering an excavation to start work, it must
first be:
A - Inspected by a competent person
B - Covered over and left overnight
C - Filled with water then drained
D - Inspected by the HSE
A - Inspected by a competent person
What is the purpose of using a ’permit to work’
system?
A - To ensure the job is carried out by the
quickest method
B - To help ensure a safe system of work
C - To ensure that the client will pay for the work
D - To enable tools and equipment to be properly
checked before the commencement of work
B - To help ensure a safe system of work
Why may young people be more at risk on site?
A - There is no specific legislation applying to
them
B - They are usually left to work alone to gain
experience
C - There is no requirement to provide PPE to
young people
D - They are inexperienced and may not
recognise danger
D - They are inexperienced and may not recognise danger
You have to enter a manhole in which you know
there are toxic gases. You have all the PPE but there
does not appear to be a rescue plan in place. What
should you do?
A - Just get on and do the job, it will probably be
alright
B - Plan to carry out the job in short bursts
C - Do not enter the manhole until a rescue plan
and rescue equipment are in place
D - Ask your mate to stand-by at the top of the
manhole with a length of rope
C - Do not enter the man hole until a rescue plan and rescue equipment are in place
You have to enter a manhole in which you believe
there could be toxic gases. You have not been
provided with any Respiratory Protective Equipment
(RPE). What should you do?
A - Tell your supervisor that you will need RPE,
and if necessary, training in confined space
working
B - Sniff the atmosphere in the manhole to see
if you can smell harmful gases
C -Look into the manhole to see if you can see
any harmful gases
D - Just get on with the job, and accept the risks
A - Tell your supervisor that you will need RPE, and if necessary, training in confined spaces
While digging a trench, you uncover a length of
yellow marker tape at a depth of about 150mm.
What does the presence of the marker tape mean?
A - The area has a high water-table and
precautions must be taken to prevent an
in-rush of water
B - There is a buried electrical cable and further
excavation must be carried out with care
C - There is contaminated soil below the level of
the marker tape and all excavation must
stop
D - The excavation has reached a depth where
the sides must now be supported
B - There is a buried electrical cable and further excavation must be carried out with care
A Cable Avoidance Tool (C.A.T.) and a ‘Genny’
(generator) can be used successfully to locate
underground cables by whom:
A - Anyone
B - A competent person after training
C - Any electricity company employee
D - The site foreman
B - A competent person after training
When exposing underground power cables, which
method of excavation should you use?
A - A 360 degree excavator with rubber tyres
B - A pickaxe
C - Hand digging
D - A kango hammer
C - Hand digging
When do special precautions need to be taken when
working near overhead electric power lines?
A - Only if cranes etc. are being used
B - Only if someone could touch a line with their
bare hands
C - Only if plant has to pass under the lines
D - Whenever work areas will be near or beneath
the lines
D - Whenever work areas will be beneath or near the lines
When working alone:
A - Make sure someone responsible knows
where you are
B - You can do away with protective equipment
C - Don’t bother anyone if you have a problem,
always sort it out yourself
D - Wear headphones, it will make the day go
more quickly
A - Make sure someone responsible knows where you are
You have to walk across a site several times a day,
but have to dodge a lot of site traffic. The first thing
you should do is:
A - Have word with the drivers
B - Walk around the edges of the site to keep
out of the way
C - Tell your supervisor about the danger
D - Jump on the back of a vehicle if you can, its
safer than walking
C - Tell your supervisor about the danger
