CONSTRUCTION HEALTH AND SAFETY
TECHNICIAN CHST EXAM WITH COMPLETE
QUESTIONS AND 100 % VERIFIED
ANSWERS 2025 LATEST UPDATE
what does a mobile-crane operator need to be aware of in order
to ensure a safe lift? Correct Answer -Whether outriggers are
ended or retracted
-angel of the boom
-if tires are inflated
-ensure the crane is level
-extended outriggers are supported
To what part of the body does a body harness typically NOT
distribute any significant fall-arrest force? Correct Answer lower
back
"Recommended weight limit" (RWL) is most accurately defined
as? Correct Answer the weight that healthy workers could lift for
up to eight hours without causing musculoskeletal injuries
The Heinrich "incident to injury ratio" model states that for every
330 accidents, _______ result in no injuries, _______ cause
minor injuries, and _______ cause(s) major injuries. Correct
Answer 300:29:1.
"three E's of safety"? Correct Answer engineering, education,
enforcment
Total case incident rate (TCIR) is calculated via which of the
following? Correct Answer the number of OSHA-recordable injury
cases in a year per hundred full-time employees
,Which type of incident usually accounts for the highest fatality rate
in the construction industry? Correct Answer Falls
According to OSHA regulation 29 CFR 1926.651, a stairway,
ladder, ramp, or other safe means of egress shall be located in
trench excavations that are ____ feet or more in depth. Correct
Answer four feet or more
Excavation cave-in protection is ALWAYS required when which of
the following conditions are met? Correct Answer The excavation
mainly comprises clay or silt, and is greater than five feet in depth.
What level of electrical current is enough to potentially result in
death? Correct Answer over 10 milliamperes
Which of the following types of construction equipment can NOT
make inadvertent contact with overhead power lines? Correct
Answer Bulldozers are generally not tall enough to hit overhead
power lines.
29 CFR 1926.502, when a 200-pound load is applied in a
downward direction to the top edge of a guardrail, it shall not
deflect to a height any less than ________ above the walking or
working level. Correct Answer 39 inches
Which of the following is NOT a type of welding?
a. Modulus welding b. Resistance welding c. Arc welding d.
Oxygen-fuel gas welding Correct Answer Modulus Welding
common test used to check for cracks in a grinding wheel?
Correct Answer The "ring test" evaluates the sound coming from
a grinding wheel when lightly tapped with a nonmetallic material.
,What is electrical "bonding" Correct Answer the connection of
two or more conductive objects with a conductor to prevent
electrocution
29 CFR 1910.242, the compressed-air pressure limit for cleaning
operations shall not exceed ________ pounds per square inch.
Correct Answer 30 psi
Anchor points for personal fall arrests should be capable of
holding __________ pounds per person Correct Answer 5000
Cranes and derricks must be clear of power lines by at least
_____ feet for voltages up to _____ kV Correct Answer 10 feet
for voltages up to 50 kV and 10 feet plus 0.4 inch for each kV over
50.
The ISO 14001 environmental management system is built upon
which model? Correct Answer plan-do-check-act model
Combustible liquids that are not stored within the confines of a
"designated" outside storage area must: Correct Answer
completely surrounded by a curb structure or enclosure that is at
least six inches in height.
Per OSHA's 29 CFR 1904.6 (Recordkeeping Standard), for how
long must a document such as the OSHA 300 Log be retained?
Correct Answer five years following the end of the calendar year
that the records cover.
The OSHAS 18000 series of occupational health and safety
management system standards have the overarching goal of:
Correct Answer proactively identify and respond to risk before an
accident or incident occurs.
, A cut-off wheel that has a diameter in the range of 6-12 inches
can cut a material with a maximum thickness of: Correct Answer
¼ inch.
Per OSHA 29 CFR 1910.1025, the action level for lead (Pb)
exposure is 30 micrograms per cubic meter of air, averaged over
an eight-hour period. What is the permissible exposure limit?
Correct Answer 50 micrograms per cubic meter of air, averaged
over eight hours
The construction health & safety technician can best identify
potential workplace hazards via: Correct Answer conduct of a
rigorous worksite analysis
What type of OSHA violation can result in a fine of up to $250,000
if an employee death occurs? Correct Answer Willful Violation
acceleration of gravity constant? Correct Answer 32.2 ft/sec 2
"floor-hole" is dimensionally defined as: Correct Answer a
(measurable) hole with a range between 1 and 12 inches.
ASTM D 120-09 requires that rubber-insulating gloves for use in
live electrical work exceeding ______ must be ______. Correct
Answer 50 volts, type 1
NOT an example of "point-of-operation" guarding? Correct
Answer Ring guards
At a construction worksite, what is NOT a system or device that is
typically employed for limiting falls? Correct Answer Pitons and
safety cables
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