1.
It is recommended not to use your laptop in your lap without a surface.
Correct Answer
A. True
Explanation
Using a laptop directly on your lap without a surface can cause discomfort and potential health issues. Laptops generate heat, and placing them directly on your lap can lead to overheating and skin burns. Additionally, the lack of a stable surface can result in poor posture, leading to neck and back strain. Therefore, it is advisable to use a laptop on a desk or a lap desk to ensure proper ventilation and maintain a comfortable and ergonomic position.
2.
It is good to take a break from typing every 20 or 40 minutes to stretch out.
Correct Answer
A. True
Explanation
Taking regular breaks from typing every 20 or 40 minutes to stretch out is beneficial for several reasons. It helps prevent muscle strain and fatigue, reduces the risk of developing repetitive strain injuries, and improves overall productivity and focus. Stretching helps to increase blood circulation, loosen tight muscles, and relieve tension. It also provides an opportunity to rest the eyes and refocus, reducing eye strain. Therefore, it is indeed good to take a break from typing every 20 or 40 minutes to stretch out.
3.
The “a s d f” homerow keys are struck by the
Correct Answer
A. Left hand
Explanation
The "a s d f" homerow keys are located on the left side of the keyboard, making it convenient for the left hand to strike these keys. The homerow keys are the central keys on a keyboard and are meant to be the default position for the fingers. Therefore, it is most likely that the left hand will strike the "a s d f" keys.
4.
The “j k l ;” homerow keys are struck by the
Correct Answer
B. Right hand
Explanation
The "j k l ;" keys are located on the right side of the keyboard, specifically on the home row. This means that they are meant to be struck by the fingers of the right hand, as the left hand is typically responsible for the keys on the left side of the keyboard. Therefore, the correct answer is the right hand.
5.
The space bar is struck by the
Correct Answer
D. With any of the thumbs
Explanation
The space bar on a keyboard can be struck by either the left thumb or the right thumb. Both thumbs are positioned near the space bar, making it easily accessible for typing. This allows for flexibility in typing, as individuals can choose to use either thumb to strike the space bar based on their preference or comfort.
6.
What is Ergonomics?
Correct Answer
D. All of the above
Explanation
Ergonomics is the study of work and how it affects people. The term "ergo" refers to work and "nomos" refers to laws, so ergonomics can be understood as the laws of work. Therefore, the correct answer is "All of the above" because all the options mentioned - the laws of work and the study of work and how it affects people - accurately define ergonomics.
7.
Which of the following is not part of the ideal workstation ergonomics
Correct Answer
D. Put your feet on the desk
Explanation
Putting your feet on the desk is not part of the ideal workstation ergonomics. The correct posture for sitting at a workstation includes sitting with your back straight, your forearm forming a 90° angle with your arm, and the top of the monitor at eye level. Placing your feet on the desk is not only uncomfortable but also promotes poor posture and can lead to strain and discomfort in the legs and lower back. It is important to keep your feet flat on the floor or on a footrest to maintain proper ergonomic alignment and support.
8.
It is recommended that you work with the lights on.
Correct Answer
A. True
Explanation
Working with the lights on is recommended because it helps to improve visibility and reduce eye strain. Adequate lighting can enhance productivity and accuracy, as it allows individuals to see their work clearly and avoid mistakes. It also promotes a safer working environment by minimizing the risk of accidents and injuries. Therefore, it is advisable to work with the lights on to ensure optimal conditions for work.
9.
The “g” key is struck by the
Correct Answer
A. Left index finger
Explanation
The left index finger is responsible for striking the "g" key on a keyboard. This is because the index finger is typically used for pressing keys in the middle row of letters on the left side of the keyboard. The left index finger is positioned closest to the "g" key, making it the most logical choice for striking it.
10.
The “h” key and "j" key are struck by the
Correct Answer
A. Right index finger
Explanation
The right index finger strikes the "h" key and the "j" key on the keyboard. This is because the index finger is responsible for reaching the keys in the middle row of the keyboard, which includes the "h" and "j" keys.