Industrial and Product Design Ergonomics & Human Factors 3

Question 1

What is the primary purpose of a task analysis in human factors engineering?

Accepted Answer

To systematically identify the steps, decisions, and demands involved in completing a task

Answer

To determine the minimum wage for workers performing a task

Answer

To calculate the number of employees needed for a production line

Answer

To assess the environmental impact of a manufacturing process

Question 2

Which of the following describes a 'population stereotype' in control design?

Accepted Answer

A widely shared expectation about the direction a control should move for a given effect

Answer

A prejudice about which population groups can operate industrial equipment

Answer

A statistical average body dimension for a specific demographic group

Answer

A regulatory standard mandating control placement on machinery

Question 3

The NIOSH Lifting Equation calculates a Recommended Weight Limit (RWL) by applying multipliers for which set of factors?

Accepted Answer

Horizontal distance, vertical height, asymmetry, frequency, coupling, and vertical travel

Answer

Worker age, gender, health status, and shift length

Answer

Load color, fragility, package size, and destination

Answer

Floor surface, footwear type, load odor, and supervisor presence

Question 4

In signal detection theory, a 'false alarm' occurs when:

Accepted Answer

The operator responds to a signal that was not actually present

Answer

A genuine hazard signal goes undetected by the operator

Answer

A safety alarm activates due to a system malfunction

Answer

An operator correctly identifies a real hazard

Question 5

Which lighting metric is most relevant when designing task lighting for detailed inspection work?

Accepted Answer

Color rendering index (CRI)

Answer

Color temperature in Kelvin

Answer

Maintained illuminance in lux

Answer

Luminous efficacy in lumens per watt

Question 6

In designing hand-held consumer products, the power grip is characterized by:

Accepted Answer

All fingers and the palm wrapping around the handle with the thumb opposing

Answer

The thumb and index finger pinching a small object

Answer

Two or three fingers extended to press a button

Answer

The palm pressing flat against a surface

Question 7

When a designer uses a percentile design strategy and selects the 95th percentile female for a reach-limited clearance dimension, they are designing for:

Accepted Answer

The smallest 5% of women to ensure access for nearly all women

Answer

The tallest 5% of women to ensure they can fit

Answer

The average female to minimize material cost

Answer

The 95th percentile male to cover both sexes