Safety Test 1 September 4

Question 1

Isn’t it enough to just satisfy OSHA?

Answer 1

• conforming to codes/standards hardly ensues the elimination of co-existing or multiple faults
• we know that products/processes/systems designed to codes/standards fail daily

Question 2

What is risk?

Answer 2

• the expected value of loss
• Risk = E(Loss)
• you must assess risk OVER A FINITE PERIOD OF TIME

Question 3

Risk Options

Answer 3

• reduce - impose countermeasures to suppress severity or probability
• transfer - give risk to others (insurance)
• avoid - quit (go to another line of work)
• accept - do it anyway

Question 4

hierarchy of countermeasures

Answer 4

• design approach (reduces severity/probability)
• engineered safety features (reduces prob)
• safety devices (reduces severity** / prob)
• warning devices (reduces prob)
• procedures/training (reduces probability)

Question 5

Selection Guidelines: Factors

Answer 5

• cost
• effectiveness
• impact on system performance
• does it introduce new hazards?
• feasibility
• timeliness of countermeasure