SSSTS Working at Height 2

Question 1

What is the '1-in-4 rule' that applies to the positioning of a leaning (single) ladder?

Accepted Answer

For every 4 units of vertical height, the base of the ladder must be 1 unit out from the wall

Answer

For every 4 rungs climbed, the worker must pause and reassess

Answer

No more than 1 in 4 workers on site may use ladders at the same time

Answer

Ladders must be inspected every 4 uses or once per day, whichever is sooner

Question 2

A fragile roof is identified on a refurbishment project. Which access solution is most appropriate for workers who must carry out brief inspections?

Accepted Answer

Purpose-designed crawling boards or a roof access ladder distributed across the roof surface

Answer

Standard extending ladders leant against the roof edge

Answer

Workers wearing anti-slip footwear moving carefully across the surface

Answer

A single safety harness tied to a nearby chimney stack

Question 3

According to PASMA guidance, what is the maximum height-to-minimum-base-width ratio for a mobile tower scaffold used indoors on a firm, level surface?

Accepted Answer

3.5:1

Answer

2.5:1

Answer

3:1

Answer

4.5:1

Question 4

What is the key difference between a fall RESTRAINT system and a fall ARREST system?

Accepted Answer

Restraint systems prevent the worker from reaching an unprotected edge; arrest systems stop a fall once it has begun

Answer

Restraint systems use a harness; arrest systems use a net

Answer

Restraint systems are for use above 4 metres; arrest systems below 4 metres

Answer

Restraint systems are collective measures; arrest systems are personal measures

Question 5

Which of the following is a critical pre-use check a site supervisor must confirm before a MEWP (Mobile Elevated Work Platform) is operated?

Accepted Answer

That the operator holds a valid IPAF operator card and that outriggers are fully deployed on firm, level ground

Answer

That the MEWP colour matches site safety colour coding

Answer

That the manufacturer's manual is stored in the machine cab at all times

Answer

That the MEWP has been serviced within the last calendar month

Question 6

Safety nets are used as a collective fall mitigation measure. Which statement regarding their installation is correct?

Accepted Answer

The required clearance beneath safety nets depends on the net type, rigging method and risk assessment

Answer

Nets must always be installed exactly 2 metres below the working surface

Answer

Nets must be installed no more than 1 metre below the working surface

Answer

Nets must span the full site area and be inspected annually

Question 7

What information must be recorded on a scaffold inspection report in accordance with the Work at Height Regulations 2005?

Accepted Answer

Name and address of the competent inspector, date and time, type and location of scaffold, and any defects found with action taken

Answer

The cost of the scaffold, the subcontractor's insurance number, and the estimated duration of use

Answer

Names of all workers authorised to use the scaffold and their training records

Answer

The maximum permitted load and the procurement specification for the scaffold components