____1. Your knees
should be bent at a comfortable angle and greater than 90 degrees flexion when
sitting in front of a computer.
____2. A
well-designed mouse should not cause undue pressure on the waist and forehead
muscles.
____3. Set the eye to screen at a
distance that permits you to most easily focus on the screen.
____4.
Changing posture at frequent intervals maximizes fatigue when using a computer.
____5. Place
the keyboard in a position that allows the forearms to be close to the
horizontal and the wrists to be straight.
____6. It
is recommended that operators avoid spending more than five hours a day on
keyboard duties and no longer than 50 minutes per hour without a
postural/stretching break.
____7. To
detect whether there are reflections from the desk surface, the worker should
hold the book below the surface and assess the change in reflected glare from
the screen.
____8.
10,000 - 12,000 keystrokes per hour is considered an acceptable standard in
typing.
____9.
Good posture is essential for all users of computers.
____10.
The solution is to increase the refresh rate of the monitor to at least 75hz.
identify if it's true or not
Answer (1)
Answer:The statements are as follows: * True. Your knees should be bent at a comfortable angle and greater than 90 degrees flexion when sitting in front of a computer. This helps to maintain good blood flow to your legs and prevent discomfort. * True. A well-designed mouse should not cause undue pressure on the waist and forehead muscles. If you experience pain in these areas, you may need to adjust your posture or consider using a different mouse. * True. Set the eye to screen at a distance that permits you to most easily focus on the screen. This will help to prevent eye strain and fatigue. * False. Changing posture at frequent intervals minimizes fatigue when using a computer. It is important to take short breaks and stretch your muscles to prevent stiffness and discomfort. * True. Place the keyboard in a position that allows the forearms to be close to the horizontal and the wrists to be straight. This will help to prevent carpal tunnel syndrome and other wrist injuries. * True. It is recommended that operators avoid spending more than five hours a day on keyboard duties and no longer than 50 minutes per hour without a postural/stretching break. This will help to prevent fatigue and discomfort. * True. To detect whether there are reflections from the desk surface, the worker should hold the book below the surface and assess the change in reflected glare from the screen. This will help to identify and eliminate glare, which can cause eye strain. * False. 10,000 - 12,000 keystrokes per hour is considered an acceptable standard in typing. However, this may vary depending on the type of work being done and the individual's typing speed. * True. Good posture is essential for all users of computers. It helps to prevent pain and discomfort, and can also improve your overall health and well-being. * False. The solution to reduce flicker on a computer monitor is to increase the refresh rate to at least 75hz. However, this may not be possible with older monitors.thats all
