Ergonomics

Question 1

1. What is the recommended weight limit (RWL)?
   A. 7.75 kg
   B. 7.5 kg
   C. 5.7 kg
   D. 10.8 kg

Answer 1

B. 7.5 kg

Question 2

2. What is the lifting index (LI)?
   A. 1.5
   B. 1.75
   C. 2.21
   D. 1.05

Answer 2

A. 1.5

Question 3

3. Workstations are redesigned so that lifting at the origin occurs at H = 25 cm, V = 50 cm, and D = 40 cm. What is the new LI?
   A. 2.45
   B. 1.05
   C. 1.6
   D. 1.1

Answer 3

D. 1.1

Question 4

4. In order to prevent musculoskeletal injuries related to material handling, it is important to consider:
   A. Worker characteristics
   B. Work standards
   C. Material and container colour
   D. Task analysis incomplete

Answer 4

A. Worker characteristics

Question 5

5. Dynamic muscular effort is characterized by:
   A. A prolonged state of contraction of the muscles
   B. An alternation of contraction and extension, tension and relaxation, muscle length changes often rhythmically
   C. Non-rhythmically muscle extensions and contractions
   D. Permanent state of muscular contraction

Answer 5

B. An alternation of contraction and extension, tension and relaxation, muscle length changes often rhythmically

Question 6

6. Epicondylitis is a MSI that refers to the common malady of:
   A. Tennis elbow
   B. Carpal tunnel
   C. White finger
   D. Hammer thumb

Answer 6

A. Tennis elbow

Question 7

7. One of the most useful ways of assessing the work load is:
   A. The Borg Scale
   B. Rapid Upper Limb Assessment (RULA)
   C. Climbing stairs with a load
   D. Measuring the heart rate

Answer 7

D. Measuring the heart rate

Question 8

8. Tenosynovitis is best described as:
   A. A pain in the shoulder
   B. An inflammation of the tendon sheath
   C. A type of carpal tunnel syndrome
   D. A common toe and ankle injury

Answer 8

B. An inflammation of the tendon sheath