Manual Material Handling Flashcards Preview

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Flashcards in Manual Material Handling Deck (9)
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1
Q

Why is manual material handling so important from a public health/cost perspective?

A

Mothafuckin 4-5% of global GDP is lost to ill health, 40% bc of musculoskeletal disorders

2
Q

Provide 4 reasons why even when lifting equipment is available, workers do not use them.

A
  • Not practical to use
  • Out of order
  • Didnt think necessary
  • Takes too long
3
Q

What is the human spine consists of? Where does most of the injuries occur? What is disc herneation?

A

Consists of flexible column of 34 vertebrae, with disks between each.

Bottom disk is site of most injuries

Disk herneation is the rupturing of a disk, its fluid is squeezed out and disrupts surrounding nerves/tissues

4
Q

In addition to lifting with straight back and bent knee, provide 4 other good lifting techniques. Give a sentence to describe each of these.

A
  • Carry with straight arms
  • Keep arms straight while lifting
  • Place feet at shoulder width apart
  • Tuck chin in (helps to maintain posture
5
Q

What are the 3 criteria considered in NIOSH equation? Give a sentence to describe each of these.

A

Categories:
Biomechanical- Based on calculating load in lower disk. Limit force

Physiological- Evaluates metabolic stress/ muscle fatigue. Most important for frequent lifting.

Psychophysical- Takes into consideration the acceptability of lifts to workers

6
Q

According to EC Council Directive Table 10.7, what are the 5 characteristics of a load that should be avoided?

A
  • Too heavy or large
  • Unwieldy or difficult to grasp
  • Unstable or contents shifting
  • Positioned in manner requiring it to be held or manipulated at distance from trunk, or with trunk bending/twisting
  • Likely that contents/consistency will cause injury in event of collision
7
Q

According to EC Council Directive Table 10.7, what are the 4 physical efforts required that should be avoided?

A

Physical efforts may present risk if:

  • Too strenuous
  • Only achieved by a trunk twist
  • Likely to result in sudden movement of load
  • Made with the body in an unstable posture
8
Q

According to EC Council Directive Table 10.7, what are the 5 characteristics of a working environment that should be avoided?

A
  • Not enough room to carry out activity
  • The floor is uneven, thus presenting tripping hazards, or slippery
  • The place of the work or work environment prevents the handling of load at a safe height or with good posture
  • Variation in floor level requiring load to be manipulated at different levels
  • The floor or foot rest is unstable
9
Q

According to EC Council Directive Table 10.7, what are the 4 requirements of the activity that should be avoided?

A

Over-frequent or prolonged physical effort (esp. involving spine)

  • Insufficient rest period
  • Excessive lifting, lowering, or carrying
  • Rate of work imposed by process and cannot be changed