Free NCCER Basic Safety Test 2 — Questions and Answers

Question 1: When gas welding or burning, welders are required to wear tinted goggles or welding hoods with a filter lens of not less than a _____ shade.

No. 10
No. 2
No. 8
No. 4 (Correct answer)

Correct answer: No. 4

When gas welding or burning, welders are required to wear tinted goggles or welding hoods with a filter lens of not less than a No. 4 shade. This specific shade provides adequate protection against the intense light and harmful ultraviolet radiation produced during these processes. Using the correct filter lens is crucial for preventing eye damage such as arc flash or cataracts.

Question 2: What is the best way to protect yourself when working near moving vehicles and equipment?

Wear a reflective or high-visibility vest. (Correct answer)
Have a signaler direct your movements.
Set up reflective flags around your work area.
Ensure that a qualified person is on the job site.

Correct answer: Wear a reflective or high-visibility vest.

Wearing a reflective or high-visibility vest is the most effective way to protect yourself when working near moving vehicles and equipment. This makes you easily visible to equipment operators and drivers, especially in low light conditions or busy work zones. Increased visibility significantly reduces the risk of accidents and injuries by ensuring you are seen.

Question 3: If a Code of Federal Regulations Standard does not specifically address a workplace hazard, which of the following must be invoked?

The general duty clause (Correct answer)
The Worker's Safety Act of 1984
The Code of Construction Safety
The Workplace Safety and Insurance Act

Correct answer: The general duty clause

If a Code of Federal Regulations Standard (like OSHA standards) does not specifically address a workplace hazard, the General Duty Clause of the OSH Act must be invoked. This clause requires employers to provide a workplace free from recognized hazards that are causing or are likely to cause death or serious physical harm to employees. It acts as a catch-all to ensure worker safety even when specific regulations are absent.

Question 4: To prevent ear infections, clean your earplugs regularly with:

soap and water (Correct answer)
alcohol
a soft cloth
mineral spirits

Correct answer: soap and water

To prevent ear infections and maintain hygiene, earplugs should be cleaned regularly with soap and water. This simple method effectively removes dirt, wax, and bacteria that can accumulate on the earplugs during use. Proper cleaning ensures their effectiveness and prevents potential health issues associated with dirty ear protection.

Question 5: Prolonged exposure to asbestos can cause lung cancer, asbestosis, and _____.

pneumonia
emphysema
black lung
mesothelioma (Correct answer)

Correct answer: mesothelioma

Prolonged exposure to asbestos can cause several severe health conditions, including lung cancer, asbestosis, and mesothelioma. Mesothelioma is a rare and aggressive cancer that affects the lining of the lungs, abdomen, or heart, and is almost exclusively caused by asbestos exposure. It is a particularly dangerous and often fatal disease.

Question 6: Your personal fall arrest system should be inspected monthly by a(n) _____.

project manager
OSHA safety inspector
state safety inspector
competent person (Correct answer)

Correct answer: competent person

Your personal fall arrest system should be inspected monthly by a competent person. A competent person is defined by OSHA as someone capable of identifying existing and predictable hazards and who has authorization to take prompt corrective measures. Regular inspections by such an individual ensure the system's integrity, proper function, and overall safety.

Question 7: When performing overhead work on scaffolding, what protective measures must be taken to prevent falling objects from striking a person below?

Toeboards, debris nets, or canopies (Correct answer)
Fall arrest system
Warning tags on the scaffold
Alarm systems

Correct answer: Toeboards, debris nets, or canopies

When performing overhead work on scaffolding, protective measures like toeboards, debris nets, or canopies are essential to prevent falling objects from striking people below. Toeboards prevent small items from being kicked off, while debris nets and canopies catch larger falling objects. These measures are critical for maintaining a safe work environment and protecting workers on lower levels.

Question 8: When welding, what color is the oxygen hose?

Gray
Green (Correct answer)
Yellow
Red

Correct answer: Green

When welding, the oxygen hose is typically green. This color coding is a standard safety practice to easily identify the gas being supplied, preventing accidental connections or misuse. The acetylene hose, for comparison, is usually red, ensuring clear differentiation between the two gases.

Question 9: Anything that could have caused an injury or damage, but did not because it was caught in time, is referred to as an _____.

accident
intentional act
injury
incident (Correct answer)

Correct answer: incident

Anything that could have caused an injury or damage but did not because it was caught in time is referred to as an incident, often called a 'near miss.' Recognizing and reporting incidents is crucial for workplace safety, as it allows for investigation and corrective actions to prevent actual accidents from occurring in the future. It highlights potential hazards before they lead to harm.

Question 10: A measure of the probability, consequences, and exposure related to an event is referred to as _____.

risk (Correct answer)
evaluation
safety
hazard

Correct answer: risk

A measure of the probability, consequences, and exposure related to an event is referred to as risk. In safety management, risk assessment involves evaluating the likelihood of a hazard causing harm and the severity of that harm. Understanding risk allows for the implementation of appropriate control measures to minimize potential negative outcomes and improve safety.

Question 11: Which of the following data is included on a material safety data sheet for a hazardous shipment?

The expiration date of the substance
Net weight criteria for packaging the container
How to contact the manufacturer of the substance (Correct answer)
Manufacturer's recommended product substitutes

Correct answer: How to contact the manufacturer of the substance

A Material Safety Data Sheet (MSDS), now often called a Safety Data Sheet (SDS), includes crucial information about hazardous substances, such as emergency procedures, handling precautions, and physical/chemical properties. Importantly, it also provides contact information for the manufacturer or importer. This ensures users can obtain further information or assistance if needed, promoting accountability and access to expert knowledge.

Free NCCER Basic Safety Test 2

When gas welding or burning, welders are required to wear tinted goggles or welding hoods with a filter lens of not less than a _____ shade.