DOMAIN 1: UNIT 6: Heavy Equipment Flashcards
- Which of the following pieces of equipment is considered heavy equipment?
A) Electric drill
B) Backhoe
C) Scissor lift
D) Manual pallet jack
B) Backhoe - Heavy equipment includes machines such as excavators, loaders, backhoes, graders, and rollers. An electric drill or manual pallet jack does not fall under this category.
- What hazard is primarily associated with limited visibility of heavy equipment operators?
A) Overloading the machine
B) Collision during reversing maneuvers
C) Excessive speed
D) Equipment overheating
B) Collision during reversing maneuvers - Limited visibility, especially when backing up, can lead to collisions with obstacles or pedestrians because the operator’s view is obstructed.
- Which hazard best describes the risk of workers being caught between heavy equipment and stationary objects?
A) Tip-overs
B) Pedestrian risks
C) Clearance issues
D) Operational failures
B) Pedestrian risks - Workers in close proximity to heavy equipment can get caught between the machine and other objects, increasing the risk of injury.
- What hazard is most likely when heavy equipment is operated on unstable ground?
A) Operational failures
B) Limited visibility
C) Tip-overs
D) Buried utilities
C) Tip-overs - Equipment on unstable ground can become unbalanced and tip over, posing a serious risk to workers.
- Which hazard is associated with digging equipment striking hidden underground objects?
A) Tip-overs
B) Buried utilities
C) Clearance issues
D) Distracted driving
B) Buried utilities - Digging equipment may inadvertently strike underground utilities, such as gas lines or electrical cables, leading to hazardous conditions like electric shocks or gas leaks.
- Clearance issues in heavy equipment operations primarily refer to the risk of:
A) Inadequate space for maneuvering loads
B) Tall or extendable equipment hitting overhead structures or power lines
C) Poor operator visibility
D) Equipment being overloaded
B) Tall or extendable equipment hitting overhead structures or power lines - Clearance issues occur when equipment or its attachments extend too high and risk contacting overhead structures or power lines.
- What is a potential result of operational failures in heavy equipment?
A) Improved fuel efficiency
B) Dropped loads or falling equipment parts
C) Enhanced operator performance
D) Reduced noise levels
B) Dropped loads or falling equipment parts - Malfunctions in equipment mechanisms, such as lifting devices, can result in dropped loads or falling parts, creating significant hazards.
- Distracted driving in the context of heavy equipment operation is defined as:
A) Driving at an optimal speed
B) Operating a vehicle while performing tasks that divert attention
C) Operating a vehicle in a designated safe zone
D) Using advanced navigation systems
B) Operating a vehicle while performing tasks that divert attention - Distracted driving occurs when the operator’s attention is diverted by tasks such as mobile device use, compromising safe operation.
- According to the provided material, what percentage of U.S. vehicle crashes in 2019 were attributed to distracted driving?
A) 5%
B) 10%
C) 15%
D) 20%
C) 15% - In 2019, distracted driving contributed to 15% of vehicle crashes in the U.S., causing significant fatalities.
- Which of the following is a recommended control measure to protect workers near heavy equipment?
A) Increasing equipment speed to minimize time on site
B) Wearing high-visibility clothing
C) Relying solely on operator experience
D) Disabling reverse indicators
B) Wearing high-visibility clothing - High-visibility clothing helps ensure workers are seen by equipment operators, thereby reducing the risk of accidents.
- What control measure is specifically designed to protect heavy equipment drivers during tip-overs?
A) High-visibility clothing
B) Roll-Over Protection Systems (ROPS)
C) Functioning headlights
D) Clear reversal indicators
B) Roll-Over Protection Systems (ROPS) - ROPS provide a protective structure around the operator, reducing injury risk during tip-overs.
- Which feature helps protect drivers from falling or being hit by loaded material?
A) Extra-wide mirrors
B) Canopies or cab shields
C) Advanced GPS systems
D) Lowered seat positions
B) Canopies or cab shields - These features serve as barriers, protecting drivers from falling objects or material that may be dislodged during operation.
- What is the primary purpose of enforcing occupant limits in heavy equipment cabs?
A) To improve fuel efficiency
B) To ensure that safety features like seat belts are effective
C) To reduce the overall weight of the equipment
D) To allow for better communication between workers
B) To ensure that safety features like seat belts are effective - Occupant limits are set so that every person in the cab is properly secured by available safety equipment.
- What is the minimum required clearance for overhead powerlines carrying between 50,000 and 345,000 volts?
A) 4 feet
B) 10 feet
C) 16 feet
D) 20 feet
B) 10 feet - For powerlines carrying between 50,000 and 345,000 volts, a minimum clearance of 10 feet is required to prevent dangerous contact.
- Which of the following is NOT a recommended precaution when working around overhead powerlines?
A) Posting clear signage indicating the presence of powerlines
B) Using spotters to ensure adequate clearance
C) Ignoring clearance distances if the equipment is small
D) Utilizing safety devices like boom cage guards and proximity warning devices
C) Ignoring clearance distances if the equipment is small - Maintaining proper clearance is essential regardless of equipment size to ensure safety near overhead powerlines.
