BSIE Ergonomics & Human Factors Engineering 3

Question 1

What is 'mental workload' and why is it important in human factors engineering?

Accepted Answer

The cognitive demand placed on an operator relative to their capacity; it affects error rates and performance

Answer

Physical effort required for cognitive tasks; it determines salary scales

Answer

The number of decisions made per hour; it sets production quotas

Answer

Time spent on non-productive thinking; it is minimized by automation

Question 2

The OSHA General Duty Clause requires employers to:

Accepted Answer

Furnish a place of employment free from recognized hazards likely to cause serious harm

Answer

Provide ergonomic chairs to all employees

Answer

Pay workers' compensation for all injuries

Answer

Conduct ergonomic assessments annually

Question 3

Which lighting measurement unit is used to describe the intensity of light falling on a surface?

Accepted Answer

Foot-candle (lux)

Answer

Candela

Answer

Lumen

Answer

Watt

Question 4

In noise exposure assessment, what is the OSHA permissible exposure limit (PEL) for an 8-hour workday?

Accepted Answer

90 dBA

Answer

85 dBA

Answer

95 dBA

Answer

100 dBA

Question 5

What is a 'near miss' in the context of industrial safety and human factors?

Accepted Answer

An unplanned event that did not result in injury or damage but had the potential to do so

Answer

An injury that required first aid only

Answer

A close call between two automated machines

Answer

A production defect caught before shipping

Question 6

Which handle grip type generates the most grip force and is preferred for heavy power tools?

Accepted Answer

Power grip (cylindrical)

Answer

Pinch grip

Answer

Hook grip

Answer

Tip pinch