NCCER Core Final Practice Examination
E2026–2027 | Comprehensive -Question
Practice Test with Answers & Rationales|
Free Pdf Access.
The NCCER Core Curriculum covers foundational construction and safety knowledge
across multiple modules: Basic Safety, Construction Math, Hand Tools, Power Tools,
Construction Drawings, Basic Rigging, Communication Skills, and Employability Skills .
Below are practice questions organized by module to help you prepare for the final
exam.
Module 00101: Basic Safety
Question 1: Which of these is a true statement regarding safety?
A) Safety is instinctive and cannot be taught
B) Safety is a learned behavior and attitude
C) Safety only applies to new workers
D) Safety rules are optional for experienced workers
Answer: B
Safety is a learned behavior and attitude. Workers must be trained in safety practices and
develop safe habits over time. It is not instinctive, and it applies to all workers regardless of
experience level .
Question 2: A measure of the probability, consequences, and exposure related to
an event is referred to as _____.
,A) Hazard
B) Risk
C) Incident
D) Accident
Answer: B
Risk is defined as the measure of probability, consequences, and exposure related to an
event. Understanding risk helps workers make informed decisions about safety on the
jobsite .
Question 3: When placing a ladder against a platform or roof, the top of the ladder
should extend above the point where the ladder touches the platform or roof by
at least _____.
A) 1 foot
B) 2 feet
C) 3 feet
D) 4 feet
Answer: C
The ladder must extend at least 3 feet above the landing surface to provide a secure
handhold for workers transitioning from the ladder to the roof or platform .
Question 4: One of the most common grounding systems used for protection
against accidental electrical shock is the _____.
A) Two-wire system
B) Three-wire system
C) Four-wire system
D) Ground fault system
Answer: B
The three-wire grounding system (hot, neutral, and ground) is one of the most common
systems used to protect against accidental electrical shock .
,Question 5: When there is the potential to be exposed to asbestos, workers must
_____.
A) Continue working and ignore it
B) Remove it immediately themselves
C) Report it to a supervisor and avoid disturbing it
D) Use a regular dust mask and proceed
Answer: C
Asbestos exposure is a serious health hazard. Workers must report any suspected asbestos
to a supervisor and avoid disturbing it. Only trained and certified personnel should handle
asbestos abatement .
Question 6: At what height does OSHA generally require fall protection in the
construction industry?
A) 4 feet
B) 6 feet
C) 8 feet
D) 10 feet
Answer: B
OSHA standard 1926.501 requires fall protection at 6 feet in the construction industry.
This differs from general industry, which requires fall protection at 4 feet. Workers must
use guardrails, safety nets, or personal fall arrest systems when working at or above this
height .
Question 7: Which class of fire extinguisher is appropriate for an electrical fire?
A) Class A
B) Class B
C) Class C
D) Class D
, Answer: C
Class C fire extinguishers are rated for fires involving energized electrical equipment. Class
A is for ordinary combustibles like wood and paper, Class B is for flammable liquids, and
Class D is for combustible metals .
Question 8: What does SDS stand for in the context of hazardous materials?
A) Safety Data Summary
B) Safety Data Sheet
C) Standard Documentation System
D) Site Danger Specifications
Answer: B
SDS stands for Safety Data Sheet, which replaced the older MSDS (Material Safety Data
Sheet) under the GHS (Globally Harmonized System). SDSs contain 16 sections covering
chemical identification, hazards, composition, first-aid measures, and other critical safety
information .
Question 9: Which PPE is required as a MINIMUM on virtually all construction
sites?
A) Safety goggles and respirator
B) Hard hat and safety glasses
C) Steel-toed boots and hearing protection
D) Hard hat, safety glasses, and appropriate footwear
Answer: D
The standard minimum PPE required on almost all construction sites includes a hard hat,
safety glasses, and appropriate footwear (typically steel-toed or safety-rated boots).
Additional PPE may be required depending on specific tasks and site conditions .
Question 10: What is the purpose of a lockout/tagout (LOTO) procedure?
E2026–2027 | Comprehensive -Question
Practice Test with Answers & Rationales|
Free Pdf Access.
The NCCER Core Curriculum covers foundational construction and safety knowledge
across multiple modules: Basic Safety, Construction Math, Hand Tools, Power Tools,
Construction Drawings, Basic Rigging, Communication Skills, and Employability Skills .
Below are practice questions organized by module to help you prepare for the final
exam.
Module 00101: Basic Safety
Question 1: Which of these is a true statement regarding safety?
A) Safety is instinctive and cannot be taught
B) Safety is a learned behavior and attitude
C) Safety only applies to new workers
D) Safety rules are optional for experienced workers
Answer: B
Safety is a learned behavior and attitude. Workers must be trained in safety practices and
develop safe habits over time. It is not instinctive, and it applies to all workers regardless of
experience level .
Question 2: A measure of the probability, consequences, and exposure related to
an event is referred to as _____.
,A) Hazard
B) Risk
C) Incident
D) Accident
Answer: B
Risk is defined as the measure of probability, consequences, and exposure related to an
event. Understanding risk helps workers make informed decisions about safety on the
jobsite .
Question 3: When placing a ladder against a platform or roof, the top of the ladder
should extend above the point where the ladder touches the platform or roof by
at least _____.
A) 1 foot
B) 2 feet
C) 3 feet
D) 4 feet
Answer: C
The ladder must extend at least 3 feet above the landing surface to provide a secure
handhold for workers transitioning from the ladder to the roof or platform .
Question 4: One of the most common grounding systems used for protection
against accidental electrical shock is the _____.
A) Two-wire system
B) Three-wire system
C) Four-wire system
D) Ground fault system
Answer: B
The three-wire grounding system (hot, neutral, and ground) is one of the most common
systems used to protect against accidental electrical shock .
,Question 5: When there is the potential to be exposed to asbestos, workers must
_____.
A) Continue working and ignore it
B) Remove it immediately themselves
C) Report it to a supervisor and avoid disturbing it
D) Use a regular dust mask and proceed
Answer: C
Asbestos exposure is a serious health hazard. Workers must report any suspected asbestos
to a supervisor and avoid disturbing it. Only trained and certified personnel should handle
asbestos abatement .
Question 6: At what height does OSHA generally require fall protection in the
construction industry?
A) 4 feet
B) 6 feet
C) 8 feet
D) 10 feet
Answer: B
OSHA standard 1926.501 requires fall protection at 6 feet in the construction industry.
This differs from general industry, which requires fall protection at 4 feet. Workers must
use guardrails, safety nets, or personal fall arrest systems when working at or above this
height .
Question 7: Which class of fire extinguisher is appropriate for an electrical fire?
A) Class A
B) Class B
C) Class C
D) Class D
, Answer: C
Class C fire extinguishers are rated for fires involving energized electrical equipment. Class
A is for ordinary combustibles like wood and paper, Class B is for flammable liquids, and
Class D is for combustible metals .
Question 8: What does SDS stand for in the context of hazardous materials?
A) Safety Data Summary
B) Safety Data Sheet
C) Standard Documentation System
D) Site Danger Specifications
Answer: B
SDS stands for Safety Data Sheet, which replaced the older MSDS (Material Safety Data
Sheet) under the GHS (Globally Harmonized System). SDSs contain 16 sections covering
chemical identification, hazards, composition, first-aid measures, and other critical safety
information .
Question 9: Which PPE is required as a MINIMUM on virtually all construction
sites?
A) Safety goggles and respirator
B) Hard hat and safety glasses
C) Steel-toed boots and hearing protection
D) Hard hat, safety glasses, and appropriate footwear
Answer: D
The standard minimum PPE required on almost all construction sites includes a hard hat,
safety glasses, and appropriate footwear (typically steel-toed or safety-rated boots).
Additional PPE may be required depending on specific tasks and site conditions .
Question 10: What is the purpose of a lockout/tagout (LOTO) procedure?
