#1
Which of the following is a common hazard in construction work?
Falling objects
ExplanationObjects dropping from above pose a significant danger on construction sites.
#2
What is the purpose of a safety harness in construction?
To protect against falls from heights
ExplanationSafety harnesses are designed to prevent workers from falling when working at elevated positions.
#3
What is the maximum allowable weight for a load to be manually lifted by a single worker in construction work?
50 pounds
ExplanationLifting loads exceeding 50 pounds manually poses increased risk of injury to workers.
#4
Which of the following is an example of a 'caught-in' hazard on a construction site?
Getting caught in machinery or equipment
ExplanationCaught-in hazards involve workers being pulled into or caught by machinery, risking severe injuries.
#5
Which of the following is NOT a type of personal protective equipment (PPE) commonly used in construction?
Welding torch
ExplanationWhile critical for welding safety, a welding torch is not classified as personal protective equipment (PPE).
#6
What is the purpose of a safety audit in construction?
To assess and improve safety practices and compliance
ExplanationSafety audits evaluate the effectiveness of safety measures, identify deficiencies, and recommend improvements to enhance workplace safety.
#7
Which of the following organizations sets safety standards for construction work in the United States?
OSHA
ExplanationOSHA (Occupational Safety and Health Administration) establishes and enforces safety regulations for various industries, including construction.
#8
What does the acronym 'PPE' stand for in construction safety?
Personal Protection Equipment
ExplanationPPE refers to specialized equipment worn to minimize exposure to various hazards in the workplace.
#9
What is the minimum height requirement for a fall protection system in construction work according to OSHA standards?
4 feet
ExplanationOSHA mandates the use of fall protection systems for work at heights of 4 feet or more.
#10
Which of the following is NOT a type of personal fall protection system?
Scaffolding
ExplanationScaffolding is a temporary structure used for access, not a personal fall protection system.
#11
What is the purpose of a trench box in construction safety?
To provide support and prevent cave-ins in trenches
ExplanationTrench boxes reinforce trench walls, safeguarding workers against collapses.
#12
Which of the following is a common safety hazard associated with scaffolding?
Collapse or structural failure
ExplanationImproperly erected or maintained scaffolding can collapse, leading to severe injuries or fatalities.
#13
What is the purpose of a safety data sheet (SDS) in construction?
To provide information on hazardous chemicals
ExplanationSDS offer detailed guidance on handling, storing, and disposing of hazardous substances, ensuring worker safety.
#14
Which of the following is NOT a typical component of a construction site safety plan?
Subcontractor scheduling
ExplanationWhile important, subcontractor scheduling is not directly related to safety planning on construction sites.
#15
What is the primary purpose of conducting a Job Hazard Analysis (JHA) in construction?
To identify potential hazards associated with specific tasks
ExplanationJHA helps pinpoint potential dangers in construction tasks, allowing for risk mitigation.
#16
What is 'lockout/tagout' in construction safety procedures?
A process for shutting down machinery and preventing its accidental startup
ExplanationLockout/tagout procedures prevent accidental equipment startup, safeguarding workers during maintenance or repair.
#17
What does 'MSDS' stand for in construction safety?
Material Safety Data Sheets
ExplanationMSDS provide essential information about hazardous chemicals, facilitating safe handling.
#18
What is the primary purpose of conducting toolbox talks in construction?
To review safety procedures and discuss potential hazards
ExplanationToolbox talks educate workers about safety protocols and encourage open discussion on site hazards.
#19
What is the primary purpose of perimeter protection in construction sites?
To prevent unauthorized access
ExplanationPerimeter protection deters unauthorized entry, reducing the risk of theft, accidents, and vandalism.
#20
What is the 'three-point rule' regarding ladder safety?
Always maintain three points of contact while climbing
ExplanationTo enhance ladder safety, workers should maintain three points of contact (two hands and one foot or two feet and one hand) at all times.