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Ergonomics: Risk Factors & Environment

Authored by Harris Hamid

Science

University

NGSS covered

Used 21+ times

Ergonomics: Risk Factors & Environment
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10 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Symptoms of depressions associated with short day time (e.g. winter time in the northern hemisphere) is known as

Light-based Anomaly Disorder (LAD)
Bio-rhythm Abnormality Disorder (BAD)
Seasonal Affective Disorder (SAD)
Melatonin Type-A Deficiency (MAD)

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

A uniform lighting that is pleasant to the eyes is achieved by installing

a few standardised high-power light bulbs
many low-power bulbs instead of a few high-power ones
a mix of low-power and high-power light bulbs
the light bulbs at an equal distances

Tags

NGSS.HS-ETS1-3

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

At 85dB(A), workers can be safely exposed to ___________ for up 8 hours per day.

sound level
unwanted sound
noise dosage
high frequency noise

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

How does a hand tool's vibration affect the hand grip?

It does not affect at all
It reduces the strength of the grip
It increases the force of gripping
It has an unpredictable effect of the grip strength

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The difference between heat stress and thermal comfort is primarily about the

range of body temperature involved
reactions: either biological or subjective perception
range of the ambiance temperature
medical consequences to the heat exposure

Tags

NGSS.HS-PS3-4

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The Borg Physical Exertion Scale measures physical work efforts by the

amount of oxygen intake
muscles’ electrical activities
frequency of the pulse
subjective self-report

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following is TRUE?

Deviation from the normal posture is an awkward posture
An awkward posture does not necessarily involve deviation from the normal posture
Static posture is the safest work posture
An awkward posture CANNOT be a static posture

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