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CONSTRUCTION HEALTH AND SAFETY
TECHNICIAN (CHST) EXAM 2025
TESTBANK ACTUAL EXAM QUESTIONS
AND DETAILED CORRECT ANSWERS
WITH RATIONALES | CHST
When guard rails or fall arrest systems are not provided, the front edge of the scaffold must be ___________ away from the face of the structure, with few exceptions.
- Flush.
- 12 inches.
- 14 inches.
- 18 inches. Correct Answer The Correct Answer is: 3 The front edge of a scaffold must be within 14 inches of the face of the structure. Alternatively, guard rails or fall arrest systems may be used. Outrigger scaffolds are required to be within 3 inches and scaffolds for plastering and lathing are allowed up to 18 inches. A widely recognized protocol utilized to prevent the transmission of the HIV virus is called:
- Aids quarantine.
- Universal precautions.
- Aids awareness.
- HBV vaccination. Correct Answer The Correct Answer is: 2 The terminology "universal precautions" is a set of work practices adopted by health care and related workers to prevent the spread of the HIV and other pathogenic organisms. PRP is an acronym for:
- Perpetually Responsible Party.
- Potentially Responsible Party.
- Principal's Responsibility Provision.
- Person Receiving Prison (Sentence) Correct Answer The Correct Answer is: 2 PRP has become a common term in the discussion of responsibility for environmental contamination. In the United States, the EPA allows the use of the word "potentially" in front of the term "responsible party" in the CERCLA context. Joint and several liability defines a scope of liability in the United States. The practical meaning of joint and several liability is best described as:
- All responsible parties must jointly contribute to clean-up costs, to the extent of their volumetric share of the wastes at the site.
- Each and every responsible party could be held individually liable for the entire cost of the clean-up.
- NPL sites where there are multiple responsible parties must act jointly, through generator committees, to severally apportion costs amongst themselves.
- EPA must allocate costs among responsible parties in a manner that reflects both the volume and toxicity of their wastes, as well as the difficulty of clean-up. Correct Answer The Correct Answer is: 2 The liability provisions under Section 107 of CERCLA are strict, joint and several, and retroactive in application. Strict liability can refer to the standard of liability in the United States. The practical implications of strict liability in cases of environmental contamination are best described as:
- The liability applies regardless of fault, and the government does not have to prove intent or negligence on the part of the responsible party.
- Compliance with laws and regulations in effect at the time of disposal does not matter.
of the federal program. The state is required to implement regulations that are equal to the federal regulations. States are also required to apply the state occupational safety and health programs to state employees and work sites. The United States federal agency tasked with responsibility for overseeing and enforcing safety and health in businesses is: 1)OSHA. 2)FDA. 3)EPA. 4)MSHA. Correct Answer The Correct Answer is: 1 The Occupational Safety and Health Administration (OSHA) is the federal agency tasked with overseeing and enforcing safety and health in U.S. businesses. Most countries have an equivalent government organization. The Food and Drug Administration (FDA) is the federal agency tasked with overseeing and enforcing safety and health of food and drug products. The Environmental Protection Agency (EPA) is the federal agency tasked with overseeing and enforcing protection of the environment. The Mine Safety and Health Administration (MSHA) is tasked with overseeing and enforcing safety and health of U.S. miners. There are a number of United States federal agencies that regulate the use of radioactive materials in the work environment. These agencies include:
- FDA, OSHA, EEOC
- EPA, OSHA, USAID
- CFTC, NRC
- OSHA, NRC Correct Answer The Correct Answer is: 4 OSHA and NRC are the primary regulating agencies for the use of radioactive materials at the work site. OSHA - Occupation Safety and Health Administration. NRC - Nuclear Regulatory Commission EPA - Environmental Protection Agency EEOC - Equal Employment Opportunity Commission USAID - Agency for International Development CFTC - Commodity Futures Trading Commission FDA - Food and Drug Administration ICRP - International Commission on Radiological Protection The OSH Act and OSHA regulations and standards provide for a series of:
- Employer and employee rights and responsibilities.
- Employer responsibilities and employee rights.
- Employer responsibilities.
- Employer responsibilities to provide for the rights given employees. Correct Answer The Correct Answer is: 1 The OSH Act and regulations provide for both employer and employee rights and responsibilities. Different countries will have similar laws and regulations establishing varying duties and responsibilities between employers and employees. Construction activities that involve the renovation or demolition of existing facilities often have unique hazards as a result of the previous construction operations and maintenance. One unique consideration is equipment containing ozone depleting substances. When removing old equipment that may contain an ozone depleting substance you must:
- Notify the regional office of the appropriate regulatory authority to request a certified specialist for removal of the ozone depleting substance.
under the direction of the person in charge of the blasting. All wires shall be carefully traced and a search made for unexploded charges. No drilling, digging, or picking shall be permitted until all missed holes have been detonated or the authorized representative has approved that work can proceed. The point where the blade of a table saw engages the wood to be cut is called the:
- Cut point.
- Pinch point.
- Hazard area.
- Point of operation. Correct Answer The Correct Answer is: 4 The point of operation is the area on a machine where work is performed. [1910.212(a)(3)(i)] Fundamental in negotiation (in any situation) is understanding: 1)The education and experience background of the one representing the other side. 2)The basic perspective of the other position. 3)How you yourself are perceived by the one representing the other side. 4)All of the above Correct Answer The Correct Answer is: 2 When entering into a negotiation, you will be unable to come to a win-win arrangement until you understand the basic perspective of the other side. Sometimes, both sides realize that each shares each other's perspective, and the negotiation proceeds very smoothly. When this common understanding is missing, the negotiation can become adversarial. Management accountability means all of the following EXCEPT: 1)Managers and supervisors have the most influence on management systems and must change them when they are found to be working inadequately. 2)Managers and supervisors are accountable for their line employees' safety and safety
performance, and such accountability is manifested in the managers' and supervisors' performance appraisals. 3)Managers and supervisors are accountable for the costs associated with risk management as well as the cost of losses. 4)Managers and supervisors are accountable for their line employees' safety while off duty. Correct Answer The Correct Answer is: 4 Though management accountability does not follow employees when they leave for home, a well-designed safety and health program will influence employees to live and work safely outside of the workplace. When designing a safety program, it is essential that psychological factors like individual differences, motivation, emotion, attitudes, and _______________ be considered.
- Reward
- Punishment
- Learning
- Negativism Correct Answer The Correct Answer is: 3 Learning underlies much of what makes for differences and similarities among people. Through learning, people have developed certain kinds of psychological needs, habitual patterns of behavior, ways of reacting to emotion, and the attitudes which brought them into the workplace. It is essential to consider learning because training is a major consideration in safety programming. TRADITIONAL safety program components utilized to influence employee attitudes and behavior are identified with:
- Written procedures.
- Posters, booklets, awards.
- Education and training.
- Provision of free personal protective equipment. Correct Answer The Correct Answer is: 2
a downward movement, or turning a dial clockwise to obtain an increase. Such responses are called population stereotypes, a behavioral response common to nearly everyone in a certain population. In behavioral terms, "ABC" refers to:
- Activator, behavior, consequence.
- Attitude, behavior, consequence.
- A nice way of saying, "keep it simple stupid".
- The ease with which people's behavior can be understood. Correct Answer The Correct Answer is: 1 ABC refers to the activator, behavior, consequence model of behavior. Behavior is most influenced by:
- Activators
- Consequences
- Discipline
- Feedback Correct Answer The Correct Answer is: 2 While all four answers have an impact on behavior, consequences, in general, have the most impact. Discipline and feedback can be considered types of consequences, but there are others to be considered including positive reinforcement and reward. A supervisor's job responsibilities include the "3-E's" principles. Which of the following would NOT be included under the "3-E's"? 1)Making sure employees comply with safety rules and procedures 2)Instructing employees how to work safely 3)Establishing a safety program 4)Determining ways for eliminating injury/illness potential from the job Correct Answer The Correct Answer is: 3 The supervisor's job involves: ENGINEERING - to determine the most effective way of doing the job and designing the injury/illness potential out of the job.
EDUCATION - to instruct the employee in the right method, and through training, improve job skill, knowledge, and behavior. ENFORCEMENT - to ensure the employee follows the prescribed work practice and complies with safety rules and procedures. Experience has indicated that the most effective way to reduce accidents is:
- Training employees to be more safety conscious.
- Behavior modification.
- Designing safety features into systems.
- Job rotation. Correct Answer The Correct Answer is: 3 Hazards can be more effectively reduced or eliminated through system design, whereas hazard reduction through changing human behavior is limited and requires continuous reinforcement. In the analysis of variance:
- The total sum of squares of deviations from the grand mean is equal to the sum of squares of deviations between treatment means and the grand mean minus the sum of squares of deviations within treatments.
- The total standard deviation is equal to the sum of the standard deviation for the treatment effect plus the standard deviation of the random error.
- The degrees of freedom are additive.
- A basic population model can be constructed to represent the behavior of the experimentation. Correct Answer The Correct Answer is: 3 The degrees of freedom for the treatments plus the degrees of freedom for the error will sum to the total degrees of freedom. As an effective manager, how would you discipline an employee's first minor safety rule infraction?
- Oral reprimand
- Written reprimand
- Ignore it
Job safety analysis is a technique that utilizes a method of developing job procedures that includes a systematic task analysis that examines each step, and preventive or corrective actions required to ensure a safe operation. Hazard control can be accomplished in a variety of ways. Common methods of hazard control include: using personal protective equipment, reducing exposure, designing out the hazard and eliminating the hazard by substitution or automation. What is the order of precedence of these hazard control methods from highest to lowest? 1)Using personal protective equipment, designing out the hazard, and eliminating the hazard by substitution or automation, reducing exposure. 2)Eliminating the hazard by substitution or automation, designing out the hazard, reducing exposure, and using personal protective equipment. 3)Designing out the hazard, eliminating the hazard by substitution or automation, reducing exposure, and using personal protective equipment. 4)Designing out the hazard, eliminating the hazard by substitution or automation, using personal protective equipment, and reducing exposure. Correct Answer The Correct Answer is: 3 Common methods of hazard control, in order of precedence, are: designing out the hazard, eliminating the hazard by substitution or automation, reducing exposure, and using personal protective equipment. Machine Guarding is a form of:
- Designing out the hazard.
- Reducing exposure.
- Use of personal protective equipment.
- Eliminating the hazard by substitution. Correct Answer The Correct Answer is: 2 Machine guarding is a form of reducing the exposure. When machine guarding is provided, the hazard still exists. Guarding reduces the potential for worker exposure to the hazard.
Effective safety and health activities: 1)Are incorporated into the operations of the business and are integrated in already functioning activities when ever possible. 2)Are supported by trained and qualified safety professionals and are accomplished in a manner to guarantee independence from already existing activities, which may be performed incorrectly. 3)Provide a substantial check and balance to already existing activities when performed independently by a third party. 4)Will disrupt business activities and cause trades people to delay completion of their work. Correct Answer The Correct Answer is: 1 Effective safety and health activities are incorporated into the operations of the business and are integrated in already functioning activities when ever possible. Many existing activities in a business are already safety related. This is particularly true with maintenance activities such as a periodic inspection of electrical equipment. Businesses are responsible to their owners, stockholders, etc. The main purpose of most businesses is to assure a continued positive cash flow. An effective safety program supports the financial stability of a business by:
- Accomplishing a requirement of the law, regardless of the cost to the business.
- Providing strong management oversight and control of employees.
- Preventing the costs associated with OSHA violations.
- Increasing productivity of employees, reducing injuries and illnesses, eliminating lost production due to down time. Correct Answer The Correct Answer is: 4 An effective safety program supports the financial stability of a business by increasing productivity of employees, reducing injuries and illnesses, eliminating lost production due to down time. There are considerable areas of direct cost that can result
- Maintain communication with injured employees, push employees to return to work to maximize the company's productivity, and thoroughly investigate accidents.
- Maintain communication with injured employees, push employees to return to work to maximize the company's productivity, and thoroughly investigate reports of fraud.
- Exhibit compassion toward injured employees, maintain communication with injured employees, support the employer's return-to-work programs, and thoroughly investigate accidents. Correct Answer The Correct Answer is: 4 Strategies that have proven effective in minimizing workers' compensation costs are: Maintaining communication with injured employees that are off work Supporting the employer's return-to- work programs Investigate and determine the cause of accidents to prevent future occurrences A hearing conservation program consist of:
- The training of employees in the time limits of exposures.
- Assessing noise hazards, controlling exposures, issuance of PPE, training and monitoring of employees and recordkeeping.
- The issuance of appropriately selected and fitted PPE including ear plugs and ear muffs.
- The careful calculation of time weighted exposures and the changing of employees when they reach the maximum allowable dose. Correct Answer The Correct Answer is: 2 A hearing conservation program consist of assessing noise hazards, controlling exposures, issuance of appropriate PPE, training and education of employees, monitoring and evaluation of employees and recordkeeping. Hazard control is addressed in a hierarchical fashion. The most preferred method for controlling hazards is to provide engineering controls of the hazard. An example of engineering controls are: 1) The changing of work shifts to have high noise operations performed when most workers are not present at the job site. 2)
The accomplishment of a full area noise survey by a licensed professional engineer. 3) The use of carefully engineered electronic hearing protection. 4) Reducing the noise at the source through the installation of a muffler. Correct Answer The Correct Answer is: 4 Examples of engineering controls are the installation of a muffler, the installation of vibration dampening devices, or the use of acoustical sound absorbing materials. In construction, fall protection is required for: 1)All workers exposed to fall hazards at a working height greater than 6 feet. 2)All workers exposed to fall hazards at a working height greater than 6 feet except where determined to not be financially feasible by the supervisor. 3)All workers exposed to fall hazards at a working height greater than 6 feet except where determined to not be feasible by a competent person. 4)All workers exposed to fall hazards at a working height greater than 6 feet except where determined to create an equal or lesser hazard. Correct Answer The Correct Answer is: 3 There are some instances when fall protection may not be feasible or may create a greater hazard if used. This determination must be made by a competent person. The Domino Theory of Accident Causation theorizes that:
- Injuries and accidents are a result of the interactions between person, machine and environment.
- Injuries and accidents are caused by human error as result of overload, inappropriate response or inappropriate activities.
- Injuries and accidents are caused by human error as result of overload, ergonomics traps or a decision to err.
- Injuries and accidents are caused by preceding factors and that the removal of one of the factors would prevent the accident. Correct Answer The Correct Answer is: 4 The Domino Theory, developed by Herbert W. Heinrich in the 1920's, postulates that injuries and accidents are caused by
- Monitor workers, provide hydration and food when worker activity decreases, and ensure high volume water intake. Correct Answer The Correct Answer is: 1 Effective heat stress management can include: Training about heat stress and preventative strategies Frequent, small quantity hydration Encourage co-worker observation for sings and symptoms Provide special assessment of workers with medical conditions or medications that may be susceptible Encourage healthy lifestyles Adjust expectations of employees that have suffered heat stress Provide for fans or other air moving options and engineering controls for sources of heat Place limits of exposure times such as increase rest break frequency Use PPE where possible Flammable and combustible liquid storage tanks should be identified with the NFPA 704 system. In the following diamond what do the colored sections represent?
- Red represents the flammability hazard, blue the water solubility, yellow the health hazard and white is for special reactivity information.
- Red represents the flammability hazard, blue the chemical hazard, yellow the reactivity hazard and white is to indicate if a material is water reactive or not.
- Red represents the fire hazard, blue the health hazard, yellow the pH hazard and white is for special information.
- Red represents the flammability hazard, blue the health hazard, yellow the reactivity hazard and white is for special information. Correct Answer The Correct Answer is: 4 Red represents the flammability hazard, blue the health hazard, yellow the reactivity hazard and white is for special information which include water reactive and oxidizer.
Storage of materials is an important area of consideration for safety. Improperly stored material can cause accidents. An important technique for storing materials is:
- To keep all hazardous materials stored together.
- To perform hand stacking of all materials to assure an adequate stacking.
- To ensure adequate stacking, racking, blocking and interlocking.
- To carefully remove all strapping and ties immediately upon delivery of materials. Correct Answer The Correct Answer is: 3 Materials that will be stored in tiers must be adequately stacked, racked, blocked and interlocked. Hazardous materials must be segregated to ensure incompatible materials are not stored together. Mechanical handling should be used whenever appropriate to prevent materials handling injuries. Securing strapping and ties should remain in place until materials are required. Once strapping or ties are removed, the material must be evaluated to determine if it must be rearranged to prevent accidents. A hole is defined in OSHA fall protection standards as:
- An opening in the floor, roof, or other walking surface that provides enough space for a person to fall through.
- An opening in the floor, roof, or other walking surface that is one foot or more in its least dimension.
- An opening in the floor, roof, or other walking surface that is 2 inches or more in its least dimension.
- An opening or excavation in the floor, roof, or other walking surface that is greater than 4 inches in the least dimension. Correct Answer The Correct Answer is: 3 A hole is defined as an opening in the floor, roof, or other walking surface that is 2 inches or more in its least dimension.
