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Worksheets2nd mid exam 2017
Total questions: 20
Worksheet time: 41mins
Cognitive ergonomics is the protection of computer systems and information from harm, theft, and unauthorized use.
false
true
The goal of ergonomics is to prevent soft tissue injuries and musculoskeletal disorders.
true
false
The term ergonomics is rooted from organizational and physical ergonomics
true
false
The over use of computer has associated with humans health problems.
false
true
Children are more sensitive to radio frequency radiation due to their smaller head circumference and brain size.
true
false
Backrest is angled at 90-110 degrees with adequate lumbar Support in line with lower back.
false
true
What angle should your elbows be at while using a computer?
180 degrees
45 degrees
90-110 degrees
30 degrees
Which position is recommended for your head while using a computer?
Upright with ears aligned with shoulders
Turned to the side
Tilted forward
Looking down
What is a recommended practice for using portable devices?
Use them while sleeping
Keep them away from your body
Keep them close to your body
Use them for long conversations
What should you do to reduce the risk of harming brain cells while using smartphones?
Use good wired or wireless headsets
Hold the phone close to your head
Avoid using headsets
Talk for long hours
Which of the following is a consequence of improper seating while using a computer?
Better posture
Backaches
Improved concentration
Faster typing speed
Why is it advised to avoid calls in places with low signal reception?
It increases transmission power and radiation
It connects faster
It makes the call clearer
It drains the battery faster
What is a safer alternative to making long calls on mobile phones?
Using a smartwatch
Using a landline telephone
Using a tablet
Using a laptop
What should you do to prevent reflections on your computer screen?
Use a smaller monitor
Sit further away from the screen
Increase the brightness
Adjust the position of your display
Which of the following is NOT a general ergonomic guideline?
Keep your elbows far from your body
Face your computer screen directly
Use a chair that provides support for your lower back
Keep your head and neck in an upright position
What is one of the tips for proper utilization of smartphones?
Text insulting messages
Take breaks from your phone
Use your phone while crossing the road
Play games all the time
What should be the position of your feet while seated at a computer?
On the desk
Crossed over each other
Hanging in the air
Flat on the ground or footrest
What is the recommended angle for a backrest while sitting at a computer?
90-110 degrees
180 degrees
45 degrees
Straight up
How can you reduce eyestrain while using a computer?
Stare at the screen for long periods
Use a smaller font size
Adjust the display position
Keep the screen far away
What should you do to reduce the risk of muscle disorders?
Avoid taking breaks
Use a smaller keyboard
Sit for longer periods
Follow ergonomic guidelines
