Pleasant Grove High School Computer Lab Safety Quiz

Explanation
The correct answer is "not include running and horseplay." This is because running and horseplay can be dangerous and disruptive in a classroom setting. It is important for students to follow rules and guidelines to ensure a safe and productive learning environment.

Explanation
Placing coats, bags, and other items on the table away from the computers is the correct answer because it helps to avoid tripping hazards. Placing these items on the floor next to the computer or under the chair can create obstacles and increase the risk of someone accidentally tripping over them. By placing them on the table, they are kept out of the way and reduce the chances of accidents occurring.

Explanation
Glancing away from the screen periodically while working at a computer for long periods of time helps to prevent eye strain. Staring at a screen for extended periods can cause eye fatigue, dryness, and discomfort. Taking short breaks to look at objects in the distance or focusing on something other than the screen allows the eyes to relax and reduces the strain on the eye muscles. This practice also helps to prevent other symptoms associated with prolonged computer use, such as headaches and blurry vision.

Explanation
Sitting up straight at the computer is often believed to be good for your back, as it promotes proper posture and alignment. Maintaining an upright position can help reduce strain on the spine and decrease the risk of developing back pain. However, it is important to note that sitting in any one position for extended periods can be detrimental to the back. It is recommended to take regular breaks, stretch, and vary your sitting position throughout the day to promote overall spinal health. Therefore, the statement "Sitting up straight at the computer is bad for your back" is false.

Explanation
Long sessions of typing can lead to repetitive stress injuries (RSIs) in your hands. RSIs are caused by the repetitive movements and strain on the muscles, tendons, and nerves in the hands and wrists. These injuries can result in pain, numbness, tingling, and weakness in the affected area. Blisters on the fingers may occur due to friction or pressure, but they are not directly related to typing. Deafness is unrelated to typing and is typically caused by other factors such as exposure to loud noises.

Explanation
Knowing the location of fire extinguishers and fire exits in the computer lab is important for the safety of individuals in case of a fire emergency. Being aware of these locations allows people to quickly and efficiently respond to a fire, potentially minimizing damage and ensuring the well-being of everyone in the lab.

Explanation
The student should not open the computer and check the power supply if the computer will not start. This is because opening the computer and tampering with the power supply can be dangerous and may cause further damage. Instead, the student should try other troubleshooting steps such as checking the power cable, ensuring the power button is properly connected, or seeking professional help.

Explanation
Drinking a soda near the computer is not okay because it poses a risk of spills and liquid damage to the electronic components. If the soda spills, it can cause short circuits and potentially ruin the computer. Additionally, the sticky residue left behind by the soda can attract dust and dirt, leading to clogged keyboards and vents. It is best to keep liquids away from electronic devices to ensure their proper functioning and longevity.

Explanation
Shutting down a computer by pressing the power button on the computer case is not the recommended method. This can lead to potential data loss and can cause damage to the system. It is recommended to shut down the computer using the operating system's shutdown option or by selecting the shutdown option from the Start menu.

Explanation
Using a surge protector is recommended to protect your computer from excess electric power that can potentially cause damage. Surge protectors are designed to absorb and divert excess voltage, preventing it from reaching your computer and other electronic devices. This helps to safeguard your computer against power surges, lightning strikes, and other electrical disturbances that could potentially harm its components. Therefore, it is important to use a surge protector to ensure the safety and longevity of your computer.

Explanation
Excessive heat can damage computers because it can cause the components inside the computer to overheat. When the components get too hot, they may malfunction or even permanently fail. Heat can also cause the computer's performance to degrade and may lead to system crashes. To prevent damage from excessive heat, it is important to ensure proper ventilation and cooling for computers, such as using fans or cooling pads.

Explanation
When a computer is on, it is not fine to move it around as much as you like. Moving a computer while it is on can cause damage to the internal components, such as the hard drive or other sensitive parts. It is recommended to turn off the computer before moving it to avoid any potential damage or data loss.

Explanation
Having at least two copies of all important files is essential because it provides a backup in case one copy gets lost, corrupted, or damaged. By having multiple copies, you can ensure the safety and availability of your important files, even in the event of accidents, hardware failures, or data loss. This practice helps to prevent potential data loss and ensures that you can easily recover your files when needed.

Explanation
Turning off your computer is necessary for various reasons such as saving energy, preventing overheating, and allowing updates and software installations to take effect. Additionally, regular shutdowns can help improve the overall performance and longevity of the computer. Therefore, the statement that you should never turn your computer off is incorrect.

Explanation
Computers are sensitive electronic devices that can be easily damaged by dust. Dust particles can clog the computer's cooling system, leading to overheating and potential hardware failure. Additionally, dust can settle on the computer's internal components, causing them to malfunction or become less efficient. Therefore, it is important to keep dust away from computers to ensure their proper functioning and longevity.

Explanation
Static electricity can destroy the sensitive electronics inside of a computer because when there is a buildup of static charge on a person or object, it can discharge and create a sudden surge of electricity. This surge can cause damage to the delicate components of a computer, such as the motherboard, processor, or memory modules. Therefore, it is important to take precautions, such as grounding oneself or using anti-static equipment, to prevent static electricity from harming the computer.

Explanation
Writing down your computer serial number is important for several reasons. Firstly, it can help in identifying and locating your computer in case of theft or loss. Secondly, it is often required when seeking technical support or warranty services. Additionally, having the serial number can assist in registering software or hardware products, as well as in tracking any recalls or updates related to your computer model. Therefore, it is important to keep a record of your computer's serial number.

Explanation
When working inside a computer case, it is important not to touch the circuit boards directly because they are sensitive and can be easily damaged by static electricity or oils from our hands. Instead, it is recommended to handle them by their edges to minimize the risk of causing any harm to the components.

Explanation
Fingerprints will not cause short circuits to computer circuit boards. This is because fingerprints are not conductive enough to disrupt the flow of electricity on the circuit boards. While it is generally recommended to handle circuit boards with clean hands to avoid any potential damage or interference, fingerprints alone are unlikely to cause short circuits.

Explanation
The statement suggests that if your computer is not working, you can just begin working on it without reporting it to the teacher. However, this is not true as it is important to inform the teacher about any technical issues so that they can assist in resolving the problem or provide an alternative solution.