CSCS Working at Height 3

Question 1

What is the maximum recommended height for a free-standing mobile tower scaffold used outdoors?

Accepted Answer

The height-to-base ratio should not exceed 3:1 outdoors

Answer

For free-standing mobile tower scaffolds used outdoors, the height-to-base ratio should not exceed 3:1. Indoors, the ratio can be up to 3.5:1. This prevents overturning due to wind loading.

Question 2

What must be fitted to the edge of a scaffold platform to prevent tools and materials from falling?

Accepted Answer

A toe board at least 150mm high

Answer

Toe boards at least 150mm high must be fitted at the edge of scaffold platforms to prevent tools, materials, and debris from falling and injuring people below. Brick guards may also be required where materials are stacked.

Question 3

What is the legal requirement for ladder use under the Work at Height Regulations 2005?

Accepted Answer

Ladders can only be used for short-duration work where the risk is low

Answer

Under the Work at Height Regulations 2005, ladders should only be used for short-duration, light work where the risk assessment shows it is justified. They should not be used as a primary workplace for prolonged periods.

Question 4

What angle should a leaning ladder be placed at against a structure?

Accepted Answer

75 degrees (1 out for every 4 up)

Answer

A leaning ladder should be placed at an angle of 75 degrees to the horizontal, which equates to a ratio of 1 unit out for every 4 units up. This provides optimal stability and reduces the risk of the ladder slipping.

Question 5

Who must prepare a written rescue plan before work at height commences?

Accepted Answer

The employer or person controlling the work

Answer

The employer or person who controls the work at height must ensure that a rescue plan is in place before work begins. This is required under the Work at Height Regulations 2005 and ensures emergency procedures are established.

CSCS Green Card Practice Test

CSCS Green Card Practice Test

CSCS Working at Height 3