Computer Lab Safety Test Quiz

Explanation
The correct answer is "not include running and horseplay." This means that running and horseplay should not be a part of the behavior in the classroom. It is important for students to maintain a calm and focused environment in order to facilitate learning. Running and horseplay can be disruptive and potentially dangerous, so they should be avoided in the classroom setting.

Explanation
Placing coats, bags, and other items on the floor next to the computer can create a tripping hazard. Placing them under the chair can also be problematic as it may restrict movement and cause discomfort. The best option is to place these items on the table away from the computers, ensuring they are out of the way and reducing the risk of accidents.

Explanation
Glancing away from the screen periodically while working at the computer for long periods of time helps to prevent eye strain. Continuous staring at the screen can cause eye fatigue and strain the eye muscles. Taking short breaks and looking at objects at a distance allows the eyes to relax and refocus, reducing the risk of eye strain and discomfort. Therefore, the statement is true.

Explanation
Sitting up straight at the computer is not bad for your back. Maintaining good posture while sitting can help reduce strain on the back and prevent back pain. Sitting with proper alignment, with the back supported and shoulders relaxed, helps distribute the weight evenly and reduces the pressure on the spine. It is important to have an ergonomic setup with an adjustable chair and monitor height to support good posture while working at a computer. Therefore, the statement that sitting up straight at the computer is bad for your back is false.

Explanation
Long sessions of typing can put excessive strain on the muscles, tendons, and nerves in the hands and wrists, leading to repetitive stress injuries. These injuries, such as carpal tunnel syndrome or tendonitis, can cause pain, numbness, tingling, or weakness in the hands and wrists. Blisters on the fingers may occur due to friction or pressure from typing, but they are not typically associated with long sessions of typing. Deafness is unrelated to typing and is not caused by it.

Explanation
Knowing the location of fire extinguishers and fire exits in the computer lab is important because it ensures that individuals can quickly and effectively respond to a fire emergency. Fire extinguishers are crucial for extinguishing small fires before they spread, while fire exits provide a safe escape route in the event of a larger fire. Being aware of these locations can help minimize the risk of injury or damage in case of a fire.

Explanation
It is generally not advisable for a student or anyone without expertise in computer hardware to open the computer and check the power supply when the computer will not start. Opening a computer case and attempting to diagnose or repair hardware issues can be dangerous and may void warranties. It can also result in damage to the computer components and electrical hazards.
If a computer is not starting, it's better to perform some basic troubleshooting steps that do not involve opening the case:
Check Power Connections: Ensure that the computer is properly plugged in, and the power outlet is working. Sometimes, a loose power cable or a faulty outlet can cause startup issues.
Check Peripherals: Disconnect all unnecessary peripherals like external hard drives, printers, or USB devices. Sometimes, a faulty

Explanation
It is not OK to drink a soda near the computer because if the soda spills or leaks, it can damage the computer's components and cause malfunctions. Liquids can short-circuit the electrical circuits inside the computer, leading to permanent damage. Additionally, sticky soda residue can attract dust and dirt, which can further harm the computer's performance. It is always recommended 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. It is advised to use the operating system's shutdown option to properly close all running programs and files before turning off the computer. Pressing the power button directly can cause data loss or damage to the system.

Explanation
Using a surge protector is indeed a valid way to protect a computer from excess electric power. Surge protectors are designed to absorb and redirect any sudden increase in voltage, preventing it from reaching and damaging the computer. This is especially important in areas where power fluctuations or lightning strikes are common. By using a surge protector, you can ensure the safety of your computer and other electronic devices connected to it.

Explanation
Excessive heat can indeed damage computers. High temperatures can cause components to overheat, leading to malfunctions or even permanent damage. Heat can also reduce the lifespan of computer parts and affect their performance. To prevent damage, it is important to ensure proper ventilation and cooling for computers, especially in situations where they may be exposed to excessive heat.

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 powered on can cause damage to the internal components, such as the hard drive or other sensitive parts. It is recommended to power off the computer and disconnect any external devices before moving it to ensure the safety of the device and prevent any potential damage.

Explanation
It is important to have at least two copies of all your important files because it provides a backup in case one copy gets lost, damaged, or corrupted. Having multiple copies ensures that you can still access and retrieve your important files even if one copy becomes inaccessible. This practice helps to prevent data loss and ensures the safety and security of your important information.

Explanation
Turning off your computer is necessary for various reasons, such as conserving energy, reducing wear and tear on hardware components, and allowing for updates and maintenance tasks. It is important to shut down your computer properly to ensure that all files and programs are closed correctly, preventing data loss or corruption. Therefore, the statement "You should never turn your computer off" is incorrect.

Explanation
Dust can be detrimental to computers as it can clog the cooling system, causing the computer to overheat. Over time, this can lead to hardware damage and decreased performance. Therefore, it is important to keep dust away from computers to ensure their optimal functioning and longevity.

Explanation
Static electricity can destroy the sensitive electronics inside a computer because when there is a buildup of static charge on a person or object, and that charge is discharged onto the computer's components, it can cause damage. The discharge of static electricity can create a surge of energy that exceeds the tolerance of the computer's circuitry, leading to the destruction of the electronic components. Therefore, it is important to take precautions, such as grounding oneself and using anti-static equipment, to prevent static electricity from harming a computer.

Explanation
Writing down your computer's serial number can be important for various reasons such as warranty claims, insurance purposes, and tracking in case of theft. It can help in identifying and recovering your computer if it gets lost or stolen. Therefore, it is important to write down your computer's serial number.

Explanation
When working inside a computer case, it is important not to touch any of the circuit boards directly. This is because the oils and moisture on our hands can cause damage to the delicate components of the circuit board. To avoid this, it is recommended to handle the circuit boards by their edges when adding or removing them. This helps to minimize the risk of static electricity discharge or physical damage to the circuit board, ensuring the proper functioning of the computer components.

Explanation
Fingerprints can potentially cause short circuits on computer circuit boards. This is because fingerprints contain oils, salts, and moisture that can create a conductive path between two or more circuit components, leading to a short circuit. It is important to handle computer circuit boards with care and avoid touching the sensitive areas to prevent any damage or short circuits.

Explanation
The statement suggests that if your computer is not working, you can begin working on it without reporting it to the teacher. However, this is not true because if the computer is not functioning properly, it is important to inform the teacher or IT support so that they can address the issue and provide a solution. Ignoring the problem may result in further complications and hinder productivity.