Free NCCER Basic Safety Test 3

Question 1

Benching systems cannot be used in _____.

Accepted Answer

Type C soils

Answer

Benching systems cannot be used in Type C soils because these soils are cohesive, granular, and have a very low unconfined compressive strength, making them highly unstable. Benching requires stable soil conditions to create safe, stepped excavations. For Type C soils, shoring or sloping at a much flatter angle is typically required to prevent trench collapse and ensure worker safety.

Question 2

Safety _________.

Accepted Answer

is a learned behavior and attitude

Answer

Safety is fundamentally a learned behavior and attitude, not something that comes naturally. It requires training, awareness, adherence to procedures, and a proactive mindset from all individuals in a workplace. Developing a strong safety culture involves continuous education and reinforcement of safe practices to prevent accidents.

Question 3

The activity that consists of breaking a job into its component tasks and then analyzing each step for potential hazards is called a _____.

Accepted Answer

job safety analysis

Answer

The activity that consists of breaking a job into its component tasks and then analyzing each step for potential hazards is called a job safety analysis (JSA). A JSA identifies hazards, assesses risks, and determines the safest way to perform each task. This systematic approach helps prevent accidents and injuries by proactively addressing potential dangers before work begins.

Question 4

Which of the following is life-threatening?

Accepted Answer

Heat stroke

Answer

Heat stroke is a life-threatening medical emergency caused by prolonged exposure to high temperatures, resulting in the body's inability to regulate its temperature. Unlike heat cramps or heavy sweating, which are less severe heat-related illnesses, heat stroke can lead to organ damage, brain damage, or death if not treated immediately. It requires urgent medical attention.

Question 5

Charred sections of a welding hose close to the torch may be caused by _____.

Accepted Answer

flashback

Answer

Charred sections of a welding hose close to the torch are often caused by a flashback. A flashback occurs when the flame burns back into the torch, hose, or even the regulator, which can be extremely dangerous and cause damage or explosions. Flashback arrestors are safety devices designed to prevent this from happening and protect the welder.

NCCER (National Center for Construction Education & Research) Practice Test

NCCER (National Center for Construction Education & Research) Practice Test

Free NCCER Basic Safety Test 3