CHEMICAL ENGINEERING SAFETY
QUESTIONS AND VERIFIED
ANSWERS|CORRECT 100%|GRADE A+
Definition of a hazard - ANSWER A hazard is something (an object, a property of a substance, a
phenomenon or an activity) that can cause adverse effects.
Give three examples of a hazard and why its a hazard. - ANSWER Water on a staircase is a hazard,
because you could slip on it, fall and hurt yourself.
Loud noise is a hazard because it can cause hearing loss.
breathing in asbestos dust is a hazard because it can cause cancer.
Definition of a risk - ANSWER A risk is the likelihood that a hazard will actually cause its adverse effects,
together with a measure of the affect.
What are the three ways likelihoods can be expressed? - ANSWER Probabilities e.g. one in a thousand.
Frequencies.g. 1000 cases per year.
Qualitatively e.g. "negligible", "significant" or "likely".
Two examples of likelihood, effect and hazard. - ANSWER 1500 workers each year (likelihood) in the UK
suffer a non-fatal major injury (effect) from contact with moving machinery (hazard).
The lifetime risk of an employee developing asthma (effect) from exposure to substance X (hazard) is
significant (likelihood).
What are the main themes of legislation? - ANSWER - regulatory framework
- legislation up to 1974
- Health and Safety at Work Act 1974
- COMAH
- REACH
- COSHH
- CLP
QUESTIONS AND VERIFIED
ANSWERS|CORRECT 100%|GRADE A+
Definition of a hazard - ANSWER A hazard is something (an object, a property of a substance, a
phenomenon or an activity) that can cause adverse effects.
Give three examples of a hazard and why its a hazard. - ANSWER Water on a staircase is a hazard,
because you could slip on it, fall and hurt yourself.
Loud noise is a hazard because it can cause hearing loss.
breathing in asbestos dust is a hazard because it can cause cancer.
Definition of a risk - ANSWER A risk is the likelihood that a hazard will actually cause its adverse effects,
together with a measure of the affect.
What are the three ways likelihoods can be expressed? - ANSWER Probabilities e.g. one in a thousand.
Frequencies.g. 1000 cases per year.
Qualitatively e.g. "negligible", "significant" or "likely".
Two examples of likelihood, effect and hazard. - ANSWER 1500 workers each year (likelihood) in the UK
suffer a non-fatal major injury (effect) from contact with moving machinery (hazard).
The lifetime risk of an employee developing asthma (effect) from exposure to substance X (hazard) is
significant (likelihood).
What are the main themes of legislation? - ANSWER - regulatory framework
- legislation up to 1974
- Health and Safety at Work Act 1974
- COMAH
- REACH
- COSHH
- CLP
