IT Essentials - Safe Lab Procedures And Tool Use - Chapter 2

It actually takes less than 30 volts to damage a component.

The UPS device may burn out the printer motor.

This equipment can retain an electrical charge after being uplugged from the mains.

Using pencils inside a computer can indeed be damaging as the lead in pencils can act as a conductor and cause harm to the computer's components. This is why it is advised not to use pencils inside a computer for any reason.

A firewall is a program that runs continuously to protect against unauthorized communications to and from your PC. It acts as a barrier between your computer and the internet, monitoring incoming and outgoing network traffic to block any suspicious or potentially harmful activity. By doing so, it helps to prevent unauthorized access to your computer and safeguards your data and privacy.

If the humidity is too high, it can cause moisture, water, or condensation to accumulate on equipment. This can lead to damage as the excess moisture can corrode or short-circuit electronic components, causing them to malfunction or fail. It is important to control humidity levels in order to protect equipment from this type of damage.

A hex driver or hex screwdriver is sometimes called a nut driver because it is a tool used to tighten or loosen nuts and bolts with hexagonal heads. The term "hex" refers to the shape of the head, which has six sides. The driver or screwdriver is the tool used to apply torque to the nut or bolt, allowing it to be tightened or loosened. Therefore, both "hex driver" and "hex screwdriver" are correct answers for this question.

A digital multimeter is a device used to measure voltage, current, and resistance in electrical circuits. It is commonly used to test the integrity of circuits and the quality of electricity in PC components. The device provides accurate digital readings, making it a reliable tool for troubleshooting and maintenance tasks.

The given correct answer, "disk management," is a software that includes tools such as Fdisk, format, scandisk, defrag, and disk cleanup. These tools are used for managing and organizing the storage devices and files on a computer's hard drive. Disk management allows users to create, delete, format, and resize partitions, as well as perform maintenance tasks like checking for errors, optimizing performance, and freeing up disk space.

MSDS stands for Material Safety Data Sheet. This document provides detailed information about the potential hazards and safe handling procedures for a specific substance or product. It includes information about the composition, physical and chemical properties, health effects, first aid measures, and disposal methods. MSDS is an important tool for ensuring the safety of workers and the proper handling and storage of hazardous materials.

Scandisk and chkdsk are both disk utility programs used to check the integrity of files and folders on a hard drive. They scan the disk surface for physical errors and can fix any issues found. Therefore, either scandisk or chkdsk can be used to perform this task.

There is over 4 lbs (1.8 kg) of lead in a CRT monitor

When transporting an ESD sensitive device, it must be put into a static shielding bag or packet. This is because ESD (electrostatic discharge) can damage electronic components and circuits, and static shielding bags or packets are designed to prevent the buildup and discharge of static electricity. These bags or packets are made of materials that provide a barrier against electrostatic fields, protecting the device from potential damage during transportation. Thoroughly cleaning the device, putting it into a cardboard box or container, or wrapping it in paper do not provide the same level of protection against ESD.

At 10,000 volts you may hear a noise and feel pain

Always make sure your FSK is in full working order and fully tested before you use it

A reduced level of AC power that lasts for a period of time when the power line voltage drops below 80% of normal levels is called a brownout.

Format is the correct answer because it is the process of preparing a hard drive to store information. When a hard drive is formatted, it is divided into sectors and tracks, and a file system is created to organize and manage the data. This allows the hard drive to be ready for storing files and data in a structured manner.

In dry and cool environmental conditions, the probability of experiencing ESD (electrostatic discharge) is high. This is because low humidity and lower temperatures can increase the accumulation of static electricity, making it more likely for ESD events to occur.

Isopropyl alcohol is the best substance to use when cleaning the gold contacts on computer components because it is a mild and effective cleaning solution that evaporates quickly and leaves no residue. It is also safe to use on electronic components and does not cause damage or corrosion. Compressed air may remove loose debris but does not effectively clean the contacts. A nylon brush may cause scratches or static buildup.

A power surge refers to a sudden and significant increase in voltage that exceeds the normal flow of electrical current. It typically lasts for a short duration, usually a few nanoseconds. This increase in voltage can cause damage to electronic devices and appliances connected to the power supply. It is important to protect sensitive equipment from power surges using surge protectors or uninterruptible power supplies (UPS).