ECS - Electrotechnical Certification Scheme Health, Hygiene and Environment Questions and Answers

Question 1

An electrician is about to use a solvent-based cable cleaner in a poorly ventilated basement. According to the Control of Substances Hazardous to Health (COSHH) Regulations, what is the first and most preferable control measure their employer should have considered?

Accepted Answer

Substituting the solvent cleaner with a non-hazardous, water-based alternative.

Answer

The COSHH Regulations require employers to follow a hierarchy of control. The highest priority is to eliminate the hazard or, if that's not possible, substitute the hazardous substance with a safer alternative. PPE, such as a respirator, is considered the last line of defence.

Question 2

Under the Control of Asbestos Regulations 2012, what is a primary legal duty for an electrician before starting work in a building constructed before the year 2000?

Accepted Answer

To have received appropriate asbestos awareness training.

Answer

Regulation 10 of the Control of Asbestos Regulations 2012 mandates that employers must ensure any employee liable to be exposed to asbestos receives adequate information, instruction, and training. This 'awareness' training helps workers identify potential asbestos-containing materials (ACMs) and know what to do if they find them. Taking samples and removal are specialist, often licensed, activities.

Question 3

According to the Control of Noise at Work Regulations 2005, what action is an employer legally required to take when the daily personal noise exposure of an employee reaches the lower exposure action value of 80 dB(A)?

Accepted Answer

Provide suitable hearing protection and make it available to employees.

Answer

The lower exposure action value is 80 dB(A). At this level, employers must assess the risk, provide information and training, and make hearing protection available to employees who ask for it. The use of hearing protection does not become mandatory until the upper exposure action value of 85 dB(A) is reached.

Question 4

An electrician uses a hammer drill for several hours each day. To mitigate the risk of Hand-Arm Vibration Syndrome (HAVS), which of the following is an effective administrative control?

Accepted Answer

Implementing a work schedule that rotates the user between high-vibration and low-vibration tasks.

Answer

Administrative controls focus on changing work practices. Implementing a job rotation schedule limits an individual's total exposure time to the vibrating tool, which is a key administrative control for managing HAVS risk. Tool maintenance is an engineering control, gloves are PPE, and finger exercises are a good practice but not a formal control measure.

Question 5

During a commercial lighting upgrade, an electrician removes a large quantity of old fluorescent tubes. According to the Waste Electrical and Electronic Equipment (WEEE) Regulations, how must these tubes be disposed of?

Accepted Answer

They must be segregated and treated as hazardous waste.

Answer

Fluorescent tubes contain mercury and are classified as hazardous waste under the WEEE Regulations. They must be segregated from general waste and disposed of via a licensed waste carrier to a specialist recycling facility.

ECS - Electrotechnical Certification Scheme Practice Test

ECS - Electrotechnical Certification Scheme Practice Test

ECS - Electrotechnical Certification Scheme Health, Hygiene and Environment Questions and Answers