About this Study Set
This study set covers Computer Ergonomics through
18 practice questions.
An exploration of the interaction between computer hardware usage and human physiology, focusing on health-related facts and risks. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 18 questions from the
Ergonomics and Physiological Impacts of Computing study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which specific nerve is most commonly compressed in the carpal tunnel, a condition frequently associated with repetitive keyboard and mouse use?
-
A
Ulnar nerve
-
B
Median nerve
-
C
Radial nerve
-
D
Axillary nerve
2
What is the clinical term for the visual fatigue and ocular strain caused by prolonged focus on digital screens, often leading to reduced blink rates?
-
A
Computer Vision Syndrome
-
B
Ocular Hyperopia
-
C
Retinal Atrophy
-
D
Photopic Astigmatism
3
In ergonomic workstation design, what is the recommended optimal viewing angle (in degrees) for a monitor relative to the user's horizontal line of sight to minimize cervical strain?
-
A
0 to 10 degrees
-
B
15 to 20 degrees
-
C
30 to 45 degrees
-
D
60 to 75 degrees
4
Which musculoskeletal disorder, characterized by inflammation of the tendons in the thumb, is often linked to excessive use of mobile devices and handheld controllers?
-
A
De Quervain's tenosynovitis
-
B
Dupuytren's contracture
-
C
Trigger finger
-
D
Boutonnière deformity
5
According to the 20-20-20 rule for eye health, how often should a computer user take a break to look at an object at least 20 feet away for 20 seconds?
-
A
Every 10 minutes
-
B
Every 20 minutes
-
C
Every 45 minutes
-
D
Every hour
6
What physiological effect is triggered by the suppression of melatonin production caused by exposure to high-energy visible (HEV) blue light from digital displays at night?
-
A
Increased cortisol secretion
-
B
Delayed sleep onset latency
-
C
Hyperventilation
-
D
Vasoconstriction
7
Which spinal segment is most susceptible to 'text neck' syndrome, a repetitive stress injury caused by prolonged downward flexion of the head while viewing handheld screens?
-
A
Lumbar vertebrae
-
B
Thoracic vertebrae
-
C
Cervical vertebrae
-
D
Sacrum
8
What is the primary mechanism by which blinking frequency changes while reading from a digital screen compared to reading from printed paper?
-
A
Frequency increases by 50%
-
B
Frequency decreases by approximately 60%
-
C
Frequency remains constant
-
D
Frequency fluctuates rhythmically
9
In a neutral seated posture, what should be the approximate angle of the elbow joint to minimize tension in the forearm and shoulder muscles?
-
A
45 to 60 degrees
-
B
70 to 80 degrees
-
C
90 to 100 degrees
-
D
135 to 150 degrees
10
Which condition, caused by prolonged static posture and poor monitor height, refers to chronic pain in the upper trapezius and levator scapulae muscles?
-
A
Myofascial pain syndrome
-
B
Scoliosis
-
C
Osteopenia
-
D
Fibromyalgia
11
What is the recommended height relationship between the top of the computer monitor and the user's eyes to prevent neck extension?
-
A
At eye level
-
B
At or slightly below eye level
-
C
10 cm above eye level
-
D
15 cm below eye level
12
Excessive use of computer input devices can lead to 'Guyon's Canal Syndrome,' which involves the compression of which specific nerve?
-
A
Median nerve
-
B
Ulnar nerve
-
C
Musculocutaneous nerve
-
D
Femoral nerve
13
What is the maximum recommended duration of continuous keyboard use before taking a micro-break to prevent sustained muscular contraction?
-
A
15 minutes
-
B
30 minutes
-
C
60 minutes
-
D
90 minutes
14
Which health risk is significantly elevated by prolonged sedentary behavior associated with computer work, even when physical activity guidelines are otherwise met?
-
A
Metabolic syndrome
-
B
Type 1 diabetes
-
C
Bone density loss
-
D
Hyperopia
15
What is the function of an ergonomic mouse designed for a vertical grip in relation to the forearm?
-
A
It increases carpal pressure
-
B
It reduces forearm pronation
-
C
It eliminates the need for mouse pads
-
D
It prevents ulnar deviation
16
The condition known as 'Digital Eye Strain' is clinically exacerbated by which environmental factor common in office computing?
-
A
High ambient humidity
-
B
Low screen refresh rates
-
C
High frequency of natural light
-
D
Excessive peripheral auditory input
17
Which of the following is a symptom of Thoracic Outlet Syndrome, often associated with slumped posture while using a laptop?
-
A
Numbness in the fingers
-
B
Increased visual acuity
-
C
Enhanced lung capacity
-
D
Lowered blood pressure
18
To maintain optimal blood circulation in the lower extremities during long hours at a computer, what should be the positioning of the feet?
-
A
Crossed at the ankles
-
B
Dangling without support
-
C
Flat on the floor
-
D
Tucked under the chair
