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Safety Intelligence Evaluation Questions

100 multiple-choice questions based on CCSP standards testing foundational safety knowledge

1

Calculate the incidence rate for a company if the recordable accidents are 40 and the total man-hours are 1,500,000

A.5.3
B.8.7
C.10.2
D.11.5
2

The procedure used to make a job safe by identifying hazards in each step of the job and developing measures to counteract those hazards is called:

A.MORT analysis
B.Fault Tree
C.Job Safety Analysis
D.Probabilistic Risk Assessment
3

The ANSI Standard that covers construction Hard Hats is:

A.ANSI Z87.1
B.ANSI B16.4
C.ANSI A12.1
D.ANSI Z89.1
4

Which of the following is NOT considered a significant factor in determining the outcome of an electrocution event?

A.The level of electrical current passing through the body
B.The amount of electrically resistant material present in work boots and work gloves
C.The total amount of time an electrical exposure occurs
D.The actual path through the body in which the electrical current flows
5

A Noise-Hazard Control Program (and associated Hearing Conservation Program) is required under OSHA regulation 29 CFR 1910.95 (Occupational Noise Exposure) where workers may be exposed to noise levels in excess of an eight-hour time-weighted average of _____.

A.60 decibels (dB)
B.75 decibels (dB)
C.85 decibels (dB)
D.95 decibels (dB)
6

As per 29 CFR 1910.1001, the allowable eight-hour exposure limit concentration to asbestos fibers is not to exceed which of the following?

A.0.1 fibers per cm³ of air
B.0.25 fibers per cm³ of air
C.10 fibers per cm³ of air
D.100 fibers per cm³ of air
7

Per OSHA regulations 29 CFR 1910.25-1910.27, the maximum length a single ladder or a single section of ladder may be is __________.

A.No greater than 20 feet
B.No greater than 30 feet
C.No greater than 36 feet
D.No greater than 48 feet
8

Which of the following is NOT stipulated as a hazardous waste material attribute to which the U.S. Environmental Protection Agency extends a designated waste code (e.g., #D001), as per 40 CFR 261, Subpart C?

A.Toxicity
B.Corrosivity
C.Mutagenicity
D.Ignitability
9

In a construction environment, which of the following types of PPE is most suitable for protecting the eyes against airborne dust?

A.Safety glasses
B.Safety goggles
C.Welding goggles
D.Industrial optic-shields
10

If a five-foot deep trench is dug in clay material, what angle must the trench wall not exceed?

A.53 degrees
B.63 degrees
C.72 degrees
D.22.5 degrees
11

"Lifting index" (LI) is calculated per which of the following?

A.Load weight × recommended weight limit
B.Load weight ÷ recommended weight limit
C.Load weight ÷ weight of worker
D.(Load weight ÷ worker age)²
12

Which of the following does a mobile-crane operator NOT need to be aware of in order to ensure a safe lift?

A.Whether the outriggers are extended or retracted
B.The angle of the boom
C.The width of the jib
D.Whether the tires are fully inflated
13

To what part of the body does a body harness typically NOT distribute any significant fall-arrest force?

A.Shoulders
B.Lower back
C.Pelvis
D.Thighs
14

Excavation cave-in protection is ALWAYS required when which of the following conditions are met?

A.The excavation mainly comprises gravel or sand, and is greater than three feet in depth.
B.The excavation mainly comprises clay or silt, and is greater than five feet in depth.
C.The excavation is greater than four feet in depth, regardless of material.
D.The excavation employs heavy equipment to remove excavated material.
15

Per OSHA regulation 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.

A.28 inches
B.34 inches
C.39 inches
D.46 inches
16

Which of the following soil classifications is correct?

A.Type "A" – Cohesive soil with a low compressive strength
B.Type "B" – Cohesive soil with a moderate compressive strength
C.Type "C" – Cohesive soil with a high compressive strength
D.Type "D" – Cohesive soil with a low compressive strength
17

According to OSHA regulation 29 CFR 1910.242, the compressed-air pressure limit for cleaning operations shall not exceed ________ pounds per square inch.

A.20
B.25
C.30
D.40
18

Anchor points for personal fall arrests should be capable of holding __________ pounds per person.

A.300
B.1,000
C.5,000
D.7,500
19

Cranes and derricks must be clear of power lines by at least _____ feet for voltages up to _____ kV.

A.5, 10
B.5, 25
C.0, 25
D.10, 50
20

Soil from which water is freely seeping is classified as type ____?

A.A
B.B
C.C
D.A or B
21

According to 1926 Subpart M, open-sided platforms require guardrails at ____ feet.

A.4
B.6
C.8
D.10
22

Which of the following is required to be posted or maintained on every construction crane (per the 1926 Subpart CC Standard)?

A.ANSI hand signal chart
B.Rated load capacities
C.Annual inspection report
D.Manufacturer's crane operation manual
23

Which radiation hazard would be expected from TIG welding on an aluminum dump truck body?

A.UV
B.Infrared
C.High intensity white light
D.Laser
24

Which wire rope sling end attachment is not approved for lifting?

A.Swaged fitting
B.Mechanical eye splice
C.Hand-tucked eye splice
D.Wire rope clip eye splice
25

Protection systems for trenches over ____ feet in depth must be designed by a registered professional engineer.

A.8
B.10
C.15
D.20
26

Which equipment has a specific standard requiring a daily inspection for defects and unsafe conditions?

A.Fire extinguishers
B.Grinders
C.Respirators
D.Slings
27

Which component is not necessary for a fire?

A.Oxygen
B.Fuel
C.Heat
D.Pressure
28

A class C fire involves:

A.Paper
B.Flammable liquids
C.Electrical
D.Metals
29

Which of the following is not a symptom of Carpal Tunnel Syndrome?

A.Numbness, tingling, and pain in your thumb and first three fingers
B.Pain and burning that travels up the arm
C.Numbness and tingling in the little finger
D.Wrist pain at night that interferes with sleep
30

Based on Federal OSHA Health Standards, overexposure to which of the following may result in temporary removal from a job assignment with no loss of pay?

A.Lead
B.Zinc
C.Hexavalent chrome
D.Asbestos
31

Pneumatic nailers with an automatic feed that operate at more than ____ psi must have a safety device on the muzzle.

A.30
B.50
C.60
D.100
32

Which is true for an abrasive wheel?

A.Daily ring test must be performed
B.Safety guard must be strong enough to withstand the effect of a bursting wheel
C.Abrasive wheel must be a minimum of 4250 rpm for grinding welds
D.Grinders with a 10,000 rpm speed shall not be used for cutting concrete
33

A ground fault circuit interrupter is designed to stop current when a ____ mA leakage is detected between the hot and neutral.

A.1
B.5
C.10
D.25
34

A contractor working outside in a chemical plant exposed to the potential of flash fire must have electrical tools and cords approved for ____________ locations (no flammable gases detected during start of operation).

A.Class I, div 1
B.Class I, div 2
C.Class II, div 1
D.Class II, div 2
35

Guardrails are required on welded frame scaffolds at ____ feet.

A.6
B.10
C.12
D.16
36

Each end of a scaffold platform, unless cleated or otherwise restrained, shall extend over the centerline of its support at least ____ inches.

A.6
B.12
C.18
D.24
37

When free-standing mobile scaffold towers are used, the height shall not exceed ____ times the minimum base dimension.

A.2
B.3
C.4
D.5
38

No scaffold shall be erected except under the supervision of a:

A.Competent person
B.Professional engineer
C.Certified scaffold erector
D.Manufacturer representative
39

Guardrails must withstand a top rail pressure of at least ____ lbs.

A.200
B.300
C.400
D.5,400
40

Each suspension rope used on adjustable suspension scaffolds shall be capable of supporting, without failure, at least ____ times the maximum intended load.

A.2
B.4
C.6
D.10
41

Ladders or stairs must be provided when there is a break in elevation of ____ inches.

A.12
B.19
C.24
D.42
42

Stairways that will not be a permanent part of the structure on which construction work is performed shall have a landing every ____ feet or less.

A.4
B.6
C.10
D.12
43

Overexposure to which of the following hazardous materials has been shown to cause learning difficulties in children?

A.Asbestos
B.Lead
C.Benzene
D.Toluene
44

According to ANSI B30.5-2004, neither the load nor crane boom shall be lowered to the point where less than ____ wrap(s) of rope are on the drum.

A.1
B.2
C.3
D.4
45

For lines rated 50 kV or below, minimum clearance between the lines and any part of the crane shall be ____ feet unless one of three options has been satisfied.

A.10
B.12
C.15
D.20
46

OSHA Construction Standards for cranes require a comprehensive and documented inspection by a qualified person at least ____.

A.Monthly
B.Quarterly
C.Semi-annually
D.Annually
47

A slope of ½ to 1 can be dug on short-term excavations ____ feet or less in depth.

A.6
B.8
C.10
D.12
48

Spoil piles must be kept a minimum of ____ feet away from the trench when retaining devices are not used.

A.1
B.2
C.3
D.4
49

A trench that was previously dug has a soil compression strength of 2.4 tons/ft². It would be classified as Type ____ soil.

A.A
B.B
C.C
D.A or B
50

Per the 1926 Subpart AA – Confined Spaces in Construction standard, the acceptable lower limit for oxygen is ____ %.

A.19.0
B.19.5
C.20.0
D.20.5
51

A 1% decrease in oxygen equals an increase of ____ ppm of another gas or vapor.

A.1
B.10
C.100
D.10,000
52

Per the OSHA Construction Fall Protection Standard, the maximum allowable arresting force on an employee wearing a full-body harness is ____ lbs.

A.900
B.1,800
C.5,000
D.5,400
53

Which class of hardhat provides the highest electrical insulating properties?

A.Class G
B.Class E
C.Class C
D.Class EL
54

If there is a loss of power, hand and power tools should:

A.Restart automatically when power is restored
B.Have anti-restart devices to prevent restarting
C.Have the plugs replaced
D.Be returned to the factory for inspection
55

The color for danger signs is _______ and for caution signs is _______.

A.Red – Yellow
B.Yellow – Red
C.Blue – Green
D.Green – Blue
56

The lowest temperature of a liquid in an open container at which vapors evolve fast enough to support continuous combustion is the ____________.

A.Flash point
B.Fire point
C.Boiling point
D.Both A & B are correct
57

Heat transferred by direct contact from one body to another is a process called:

A.Radiation
B.Conduction
C.Convection
D.Absorption
58

The transfer of heat by the movement of air or liquid is called ____________.

A.Radiation
B.Conduction
C.Convection
D.Absorption
59

Fires involving wood, paper, and trash would be __________ fires.

A.Class A
B.Class B
C.Class C
D.Class D
60

Fires involving flammable or combustible liquids would be __________ fires.

A.Class A
B.Class B
C.Class C
D.Class D
61

Fires involving energized electrical equipment would be __________ fires.

A.Class A
B.Class B
C.Class C
D.Class D
62

Fires involving combustible metals would be __________ fires.

A.Class A
B.Class B
C.Class C
D.Class D
63

Which of the following types of extinguishing agents should not be used on fires involving energized electrical equipment?

A.Halon or carbon dioxide
B.AFFF
C.Metal-X
D.B and C are correct
64

Which of the following types of extinguishing agents should be used on fires involving combustible metals?

A.Dry chemical
B.Dry powder
C.Halon
D.Water
65

A fire extinguisher has a rating of 60 BC. The number 60 refers to square feet of surface of a burning liquid that __________ can put out with the unit.

A.An expert fire fighter
B.A non-expert
C.An untrained custodian
D.A fire protection engineer
66

According to NFPA 10-A, a quick check that visually determines that the fire extinguisher is properly placed and will operate is __________.

A.An inspection
B.Maintenance
C.A hydrostatic test
D.Service check
67

According to NFPA 10-A, disassembling the fire extinguisher, examining all its parts, cleaning and replacing defective parts, and repressurizing the extinguisher is __________.

A.An inspection
B.Maintenance
C.A hydrostatic test
D.Design review
68

Maintenance of a portable fire extinguisher should be performed periodically, but at least __________.

A.Once a month
B.Once every 6 months
C.Once every 12 months
D.Once every 5 years
69

To determine whether a substance is flammable or combustible you need to know its __________.

A.Vapor density
B.Specific gravity
C.Flash point
D.Ignition temperature
70

When the vapor-to-air ratio is above the UFL (upper flammable limit), the introduction of a source of ignition will:

A.Produce a violent explosion
B.Produce a slight fire or puff
C.Not start a fire because the mixture is too rich to burn
D.Not start a fire because the mixture is too lean to burn
71

According to NFPA, flammable liquids have a flash point:

A.Above 100 °F
B.Above 200 °F
C.Below 100 °C
D.Below 100 °F
72

According to OSHA, flammable liquids have a flash point:

A.Above 150 °C
B.Below 199.4 °F
C.Up to 300 °F
D.Above 300 °F
73

The four sides of the fire tetrahedron are fuel, heat, chemical chain reaction, and __________.

A.Air or oxygen
B.Light
C.Carbon dioxide
D.Nitrogen
74

Fire extinguishers should be visually inspected at least __________.

A.Weekly
B.Monthly
C.Bi-monthly
D.Annually
75

According to the National Electric Code (NEC), a Class I hazardous location is one in which __________ may be present in sufficient quantities to be explosive or ignitable.

A.Flammable gases or vapors
B.Dust
C.Fibers or flyings
D.Nitrogen
76

According to the NEC, a Class II hazardous location is one in which __________ may be present in sufficient quantities to be explosive or ignitable.

A.Flammable gases or vapors
B.Dust
C.Fibers or flyings
D.Nitrogen
77

According to the NEC, a Class III hazardous location is one in which __________ may be present in sufficient quantities to be explosive or ignitable.

A.Flammable gases or vapors
B.Dust
C.Fibers or flyings
D.Nitrogen
78

Hazardous locations are also categorized according to the conditions under which the material is present. A Division 1 location is an area where the material is expected to be present during __________ conditions.

A.Hot
B.Normal
C.Abnormal
D.Wet
79

A fuel loading area would be classified as a __________ location.

A.Class I, Division 1
B.Class II, Division 1
C.Class I, Division 2
D.Class III, Division 1
80

A storage room used to store closed drums containing flammable liquids would be classified as a __________ location.

A.Class I, Division 1
B.Class II, Division 1
C.Class I, Division 2
D.Class III, Division 1
81

According to OSHA Fire Prevention requirements, when temporary buildings are located within another building or structure, the temporary structure shall either be non-combustible or have a fire resistance of not less than ____ hour.

A.½
B.1
C.2
D.3
82

According to 1926 Construction Standards, fire extinguishers for protection of a building area must be rated no less than _____ and provided for each _____ square feet of area.

A.10A – 1,000
B.2A – 2,000
C.10A – 3,000
D.2A – 3,000
83

The following can be substituted for a 2A-rated fire extinguisher.

A.A 55-gallon drum of water with two fire pails
B.A garden-type hose (≥ 50 ft) capable of 5 gal/min with a range of 15 ft
C.Both A and B are correct
D.No substitutes are allowed
84

A fire extinguisher rated no less than 10B must be provided within _____ feet when more than _____ gallons or pounds of flammable gas are being used on a jobsite.

A.100 – 10
B.100 – 5
C.50 – 5
D.50 – 10
85

A substance or agent that causes malformations in the embryo or fetus following exposure of a pregnant female is a(n):

A.Mutagen
B.Teratogen
C.Reproductive carcinogen
D.Reproductive toxin
86

When storing more than 60 gallons of flammable or combustible liquids, there must be a fire extinguisher rated at least _____ within _____ feet of the storage area door.

A.10B – 10
B.20B – 20
C.20B – 10
D.20B – 50
87

When transferring flammable liquids from one container to another, the containers should be:

A.Grounded
B.Bonded
C.Either grounded or bonded
D.Electrically isolated
88

A substance or agent capable of altering the genetic material in a living cell is a(n):

A.Mutagen
B.Teratogen
C.Reproductive carcinogen
D.Reproductive toxin
89

A standard threshold shift is defined as a change in hearing threshold relative to the baseline audiogram at an average of:

A.10 dB or more at 500, 1,000, and 2,000 Hz
B.20 dB or more at 500, 1,000, and 2,000 Hz
C.10 dB or more at 2,000, 3,000, and 4,000 Hz
D.20 dB or more at 2,000, 3,000, and 4,000 Hz
90

A temporary depression of hearing is called a:

A.Noise Induced Hearing Reduction (NIHR)
B.Temporary Threshold Shift (TTS)
C.Permanent Threshold Shift (PTS)
D.Temporary Auditory Depression (TAD)
91

As one ages there is vascular and neural degeneration of the inner ear resulting in decreased hearing ability. This condition is called:

A.Temporary Threshold Shift (TTS)
B.Permanent Threshold Shift (PTS)
C.Presbycusis
D.Auditory Threshold Reduction (ATR)
92

A pyrophoric liquid is one that:

A.Reacts violently with water
B.Is radioactive
C.Ignites spontaneously in dry or moist air at or below 130 °F
D.Causes other materials to rapidly polymerize
93

An employee contracted Lyme disease on the job. The primary source of Lyme disease is:

A.Infected fleas
B.Infected mosquitoes
C.Infected birds
D.Infected ticks
94

Arc-flash explosions can result in temperatures and pressures up to:

A.35,000 °F and 2,000 lb/ft²
B.10,000 °F and 100 lb/ft²
C.5,000 °F and 50 lb/ft²
D.1,000 °F and 25 lb/ft²
95

The primary means of protecting personnel from overexposure to radioactive sources include:

A.PPE
B.PPE and engineering controls
C.Engineering controls
D.Time, distance, and shielding
96

For employees with a significant threshold shift, hearing protector attenuation must be sufficient to reduce exposure to a time-weighted average of:

A.80 dB
B.85 dB
C.90 dB
D.95 dB
97

An employee is exposed to a noise level of 102 dBA and uses hearing protection with an NRR of 32 dB. Assuming correct use, what would be the employee's estimated exposure?

A.77 dBA
B.70 dBA
C.102 dBA
D.95 dBA
98

If an employee is exposed to continuous noise at 90 dBA averaged over 8 hours, the employer must do all of the following except:

A.Implement feasible engineering or administrative controls
B.Include the employee in a Hearing Conservation Program
C.Establish a Hearing Conservation Program
D.Provide monthly hearing checks of all exposed personnel
99

If an employee is exposed to greater than 85 dBA TWA for 8 hours, the employer must do all of the following except:

A.Provide hearing protection
B.Train and retrain exposed workers annually
C.Give exposed workers an audiogram within 6 months of employment
D.Provide hearing aids to workers who have hearing impairment
100

If the annual audiogram shows a standard threshold shift, the employee can obtain a retest within:

A.7 days
B.14 days
C.20 days
D.30 days

Note: These questions test foundational knowledge across safety principles, risk management, OSHA regulations, and industry best practices. AI models are evaluated on their ability to correctly answer these questions, which are based on CCSP (Certified Safety and Security Professional) certification standards.