Question

1. Body dimensions vary with all the following, except …       

a. work stress

b. occupation (i.e. job)

c. gender (sex)

d. ethnicity (i.e. race, color, etc.)

e. age

2. Standard time= Basic time plus ........................................
a.Performance rating
b.Allowance
c.Observed Time
d.Normal Time

3.Which of the following is considered as designing for the minimum

a. Stair heights

b. Worktable heights

c. Doorway heights

d. Heights of kitchen cabinets

Answer 1

1. Body dimensions vary with all the following, except . a) work stress

Explanation: It is well known that body dimensions varies with age and gender. occupation also affects body dimensions Ex:- Professional basketball players are usually tall, construction workers develop well shaped muscle over time. Ethnicity also affects body dimensions Ex:-people from Caribean groups are usually taller and stronger than other ethnicities.

2. Standard time= Basic time plus allowance

Basic time is often expressed as normal time.therefore option d) is vague. Basic time and performance rating have relationship as: Basic time = (Observed time X Performance Rating)/100, hence option a) is also incorrect. while Standard Time = Basic Time + Allowances, In general allowances are some additional time is added to the basic time. Various allowances are relaxation allowance, contingency allowance etc.

3.Which of the following is considered as designing for the minimum b) Worktable heights

Design for minimum workable height is an important concept in ergonomic design of a product. minimum stairs heights, minimum doorway height and heights of kitchen cabinets are terms related to specific tasks. minimum workable height is a general and widely accepted concept in designing. it often forms in legal design contract. it generally refers to a minimum height required for a normal person to work in upstraight posture without bending or streching.