ECS - Electrotechnical Certification Scheme Work at Height Safety Questions and Answers

Question 1

According to the Work at Height Regulations 2005, what is the first and most important control measure to consider before starting any task that might involve working at height?

Accepted Answer

Avoiding the need to work at height altogether by, for example, assembling components at ground level.

Answer

The Work at Height Regulations 2005 establish a hierarchy of controls. The primary and most effective measure is to eliminate the risk by avoiding work at height wherever it is reasonably practicable to do so.

Question 2

An electrician is tasked with installing a new lighting fixture on a high ceiling inside a commercial building with a flat, level floor. Which type of access equipment would generally be considered the safest and most appropriate choice for this scenario?

Accepted Answer

A scissor lift (a type of Mobile Elevating Work Platform - MEWP).

Answer

A scissor lift (Group A MEWP) provides a stable, secure working platform with guardrails, which is much safer than a ladder for tasks of this nature. It allows the electrician to have tools and materials on the platform and work with both hands free, significantly reducing the risk of a fall.

Question 3

Which of the following is a critical safety requirement when using a leaning ladder for electrical work?

Accepted Answer

The user must always maintain three points of contact with the ladder while climbing or descending.

Answer

To ensure stability and reduce the risk of slipping and falling, it is a fundamental safety rule to always maintain three points of contact with the ladder (e.g., two feet and one hand, or one foot and two hands). For electrical work, non-conductive ladders (e.g., fibreglass) must be used. The '4-to-1' rule applies to ladder angle, not 5-to-1, and you should never work from the top three rungs.

Question 4

A personal fall arrest system, including a harness and lanyard, has been issued to a worker. According to UK regulations and best practice, what inspection regime must be followed?

Accepted Answer

A pre-use check by the user before each use, and a detailed inspection by a competent person at least every 6-12 months.

Answer

Fall arrest equipment requires a two-level inspection process. The user must perform a pre-use check every time before using it to spot obvious defects. Additionally, a competent person must conduct and record a detailed, formal inspection at regular intervals, typically every 6 to 12 months, as specified by regulations and manufacturer guidance.

Question 5

When planning work at height, the 'hierarchy of control' must be applied. Which of the following correctly orders the measures from most preferable to least preferable?

Accepted Answer

1. Avoid work at height, 2. Use collective protection (e.g., guardrails), 3. Use personal protection (e.g., harness).

Answer

The established hierarchy of control for work at height prioritises eliminating the risk first (Avoid). If that's not possible, the next step is to prevent a fall using collective equipment (e.g., scaffolding, guardrails). The final resort is to minimise the distance and consequences of a fall using personal protective equipment (PPE).

ECS - Electrotechnical Certification Scheme Practice Test

ECS - Electrotechnical Certification Scheme Practice Test

ECS - Electrotechnical Certification Scheme Work at Height Safety Questions and Answers