1- What are the signs and symptoms of musculoskeletal disorders MSDS?
A. Pain, numbness, burning and itching sensation, muscle cramps
B. Inflammation and weakness of the joints
C. Items a and b
D. None
2- What diseases (factors) cause excessive vibration in humans?
A. Waris
B. Nerve damage and muscle fatigue
C. Reduction of blood pressure
D. B and c
3- What is the improper position of the body during work?
A. The body works in a bent or twisted position and the hand is placed above the body
B. The shoulders are stretched and the arms are naturally and freely on both sides of the body.
C. The back should be fully supported by the backrest when the person is sitting straight or leaning backwards.
D. B and C