CPE Anthropometry & Physical Dimensions in Ergonomics 2

Question 1

For designing hand tool handles, which anthropometric measurement is most relevant for determining optimal grip diameter?

Accepted Answer

Hand grip circumference (maximum circumference of the closed hand)

Answer

Grip circumference describes the hand's wrapping capacity and is the primary determinant of the tool handle diameter that allows adequate force generation and control.

Question 2

In ergonomic design, 'accommodation percentage' refers to:

Accepted Answer

The proportion of the target population whose dimensions fall within the design limits

Answer

Accommodation is the fraction of the target population physically served by a design; designing for the 5th–95th percentile achieves 90% accommodation of the population.

Question 3

Knee clearance height beneath a work surface should be designed based on which anthropometric reference?

Accepted Answer

95th percentile male sitting knee height

Answer

Clearance dimensions must accommodate the largest user — the 95th percentile male — so that if the tallest-kneed user fits, all smaller users will also be accommodated.

Question 4

When applying US anthropometric data to design workstations for a predominantly Asian workforce, the primary concern is:

Accepted Answer

Systematic differences in body proportions and absolute dimensions between populations

Answer

Different national and ethnic populations exhibit distinct anthropometric profiles and body proportion ratios; applying US data directly to Asian populations can result in systematic design mismatches.

Question 5

Popliteal height is defined as the distance from:

Accepted Answer

The floor to the underside of the thigh just behind the knee

Answer

Popliteal height is measured from the floor to the underside of the thigh just posterior to the knee, and is the primary anthropometric basis for seat height design.

(CPE) Certified Professional Ergonomist Practice Test

(CPE) Certified Professional Ergonomist Practice Test

CPE Anthropometry & Physical Dimensions in Ergonomics 2