The four lifting principles that govern a crane's mobility and safety during lifting operations are: Center of gravity, leverage, stability and structural integrity (Your Answer). Overhead handling equipment like cranes, hoists and monorails can increase productivity, enhance safety, improve ergonomics and maximize floor space. True or False: Once a fall protection device has been inspected by a competent person and deemed safe for use by an employee, it is up to the employee to inspect it regularly and ensure that it still meets OSHA requirements. Careful operation of the hoist is another important safety factor to consider whenever overhead cranes are used. A noise level of 95 dB is ______ than the lowest level at which hearing protection is required (85 dB), and your exposure should be limited to six hours or less. To reduce the risk, OSHA mandates that operators make daily crane inspections. Performing a safe lift requires several roles with specific responsibilities. Statistics show that nearly 20 people died in 2012 as a result of accidents with overhead hoists. The most effective way to prevent exposure to crystalline silica is: Substitution of a product that contains silica with a product that doesn't contain silica, Final Exam OSHA 10 hour construction program. . When working at ground floor level near a cellar wall, the crane's outrigger pads or tracks should be placed: a. as close as possible to the wall b. at least as far back as the depth of the wall below ground c. at a distance at least half the depth of the cellar wall below ground d. anywhere, since the wall is unaffected by the weight of . To prevent employees from entering these hazard areas, the employer must: Before an employee goes to a location in the hazard area that is out of view of the operator, the employee (or someone instructed by the employee) must ensure that the operator is informed that he/she is going to that location. In just the last six months, four workers were killed when they were struck by moving plant, while one plant operator was killed when they collided with other mobile plant. Electrical burns are the most serious of the three major types of burns, and most often occur: On the hands, from direct contact with current (Your Answer). Derricks are lifting devices that are commonly found on ships and docks. Workers should be trained to stay clear of the hoist, and they should never walk beneath loads suspended in the air. crane set-up and rigging. Ensure that the operator can view their surroundings and adequately communicate with ground personnel. Keep Your Distance. All parties who are responsible for the use of cranes while working at Princeton University are expected to comply with Subpart CC of 29 CFR 1926 1400 (et al.) Thats because the loads being lifted by overhead hoists tend to be fairly heavy and cause serious damage if dropped. Truck-mounted and rough terrain cranes are both forms of a mobile crane, and both use which of the following to increase their stability? crane. Before an abrasive wheel is mounted, it should be inspected closely and: Sound- or ring-tested to ensure that it is free from cracks or defects (Your Answer). The 2010 standard addresses key hazards related to cranes and derricks on construction worksites, including the four main causes of worker death and injury: electrocution, crushed by parts of the equipment, struck-by the equipment or load, and falls. Ensure the load is properly balanced and secured before the crane lifts it. The type of fall protection required will depend upon: 1. OSHA's Hazard Communication Standard (HazCom) is designed to ensure that information about __________and associated protective measures is disseminated. Electric shock occurs when: The body becomes part of the circuit (Your Answer). Overall, its important for operators and workers to receive the appropriate training to avoid danger zones where electrocution can occur. All portable electric tools that are damaged shall be: If you have a three-prong plug and a two-hole receptacle, it is acceptable to: Use an adapter with an adapter wire connected to a known ground. This is very common in mobile cranes and fixed cranes also used in construction. Most fatalities, however, happen when workers fall from: Employers must ensure that all walking and working surfaces have the structural integrity to: Controlled access zones serve a dual purpose - they allow specially trained individuals (such as masons) to operate without traditional fall protection within a certain area, and: They keep unauthorized individuals out (Your Answer). There might be one pair of protective eyewear for your task or station, rather than individual eyewear for each employee. Such situations include when employees are working below others working with tools or loose objects, or around or under conveyor belts or other machinery that may cause objects to dislodge and fall." Anytime an adapter is used to accommodate a two-hole receptacle, the adapter wire must: If a worker on a scaffold can fall more than 10 feet: They must be protected by guardrails and/or personal fall arrest systems (PFAS). A ground-fault circuit interrupter (GFCI) protects workers from shock by: Matching the amount of current going into an electrical device against the amount returning from the device and shutting down power if a ground fault is detected, AEGCP's are implemented on construction sites to oversee. There are multiple hazards that can arise regarding cranes in general. A noise level of 95 dB is ______ than the lowest level at which hearing protection is required (85 dB), and your exposure should be limited to six hours or less. Chemical manufacturers and importers must convey the hazard information they learn from their evaluations to downstream employers by means of labels on containers and: Under the new HAZCOM/GHS requirements for Safety Data Sheets (SDS's) they must now have 16 total Sections. Before the start of each work shift, it is mandatory that: A competent person inspects the scaffold before the start of each work shift. -- the range of motion When operating a crane, they must be supervised by a qualified operator who meets the requirements of 1926.1427, and is familiar with the crane's operation, characteristics, and hazards. Erect and maintain control lines, warning lines, railings or similar barriers to mark the boundaries of the hazard areas. During their migration, whooping cranes seek out wetlands and agricultural fields where they can roost and feed. Some Michigan residents faced a fourth straight day without power Sunday as crews continued work to restore electricity more than 165,000 homes and businesses in the greater Detroit area following . JERUSALEM Hours after a Palestinian gunman fatally shot two Israeli brothers as they drove through a town in the Israeli-occupied West Bank on Sunday, Jewish settlers went on a . Assist with the cleaning and maintenance of the crane after an operation. This scaffold is simply a rope attached to a harness with an assembly like a boatswain's chair for the worker to sit in. Load testing maintenance ensures that you know how many pounds the hoist can handle, and it helps to keep the hoist good working condition. 3. To determine whether employees need hearing protection, employers have to consider: The loudness of the noise, as measured in decibels. This will help create visual clues for workers to ensure that the crane is always positioned so that the boom and hoist line cant intrude in the danger zone. Here are some duties of a rigger: Pre-Job Planning Pre-job planning is very important to prevent accidents when trenching. Cost and energy savings Respond quickly and efficiently to emergencies by following safety protocols. AEGCP's are implemented on construction sites to oversee: -- All cord sets 2. -- There are exposed electrical hazards. Before an abrasive wheel is mounted, it should be inspected closely and: Sound- or ring-tested to ensure that it is free from cracks or defects. As a result, San Francisco alone has seen more than a 24% increase in office vacancy. To protect against caught-in or -between hazards, a worker should not only avoid wearing loose clothing or jewelry, but also a worker should avoid: Performing maintenance or adjustment on equipment/machinery that has not been locked-out. It is designed in such a manner that all overturning forces are counteracted by the concrete pad and the counterweights hanging off the machinery arm. Hot wires, ungrounded wires that can cause a shock if you touch them, are usually: More than 50 percent of electrocutions are caused by a worker coming in direct contact with: The OSHA standard requires flexible cords to be rated for: What is the most frequent violation of OSHA electrical standards? Its crucial that any crane operator know the weight of a load and the capacity of the crane. Do not get distracted by anything. New FOREWARNER-LED warning lights from KEYTROLLER, LLC significantly improve awareness of pedestrians who work close to heavy and dangerous equipment. Acute silicosis occurs after a few months or as long as 2 years following exposures to ________ concentrations of respirable crystalline silica. One who is capable of identifying existing and predictable hazards in the surroundings, or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective measures to eliminate them is a/n ______________: Providing worker training on the safe use of the equipment being operated is the responsibility of the: To protect against caught-in or -between hazards, a worker should not only avoid wearing loose clothing or jewelry, but also a worker should avoid: Performing maintenance or adjustment on equipment/machinery that hasn't been locked-out. OSHA requires that all excavations in which employees could potentially be exposed to cave-ins be protected by one or more of the following three methods: Sloping, benching, shoring and shielding (Your Answer). The regulation is simple: "Don't stand, stroll, or operate under crane booms, buckets, or hanging cargo." Prior planning of crane operations usually considers the area to be covered by the swing of the boom. Typically, stacker cranes are used in places with special working conditions, like extremely cold temperatures, making it unnecessary for a human worker to endure extreme working conditions. Operators and controllers must maintain 100 percent focus on the task at hand to avoid potentially dangerous situations. Electricity travels in closed circuits, and its normal route is through a conductor. Secure loads to prevent shifting or slipping during lifts. 10. Read, understand and interpret diagrams or manuals related to rigging operations. It is essential for all persons undertaking these roles to be competent, having relevant up-to-date training and the qualifications and experience appropriate to the operations for which they are responsible. Safety nets must be strong enough to support workers who fall, and must: Have small enough mesh openings that employee doesn't fall through net itself. The posting of signage warning employees of the hazards of the cranes swing radius is used. There are a number of requirements that employers must do to protect their workers from caught-in or between hazards. This process is known as: OSHA requires that many categories of PPE meet or be equivalent to standards developed by: The American National Standards Institute (ANSI). Anyone controlling construction sites has health and safety responsibilities. It is essential that you have the manufacturers operating manuals and are familiar with your particular crane. For larger or mobile cranes, undesired movement of material can pinch or crush workers involved in the rigging process. Todays operator must be well trained and have a clear understanding of load dynamics, lifting capacities at various configurations, and the conditions under which such lifting capacities are valid. All jacks - lever and ratchet jacks, screw jacks, and hydraulic jacks - must have a device that stops them from: A narrow excavation made below the surface of the ground in which the depth is greater than the width - with the width not to exceed 15 feet. Symptoms of silicosis ____________ , so workers should have a chest x-ray to see if there is lung damage. Everyone in the workplace has a work health and safety duty. Each year nearly 200 people die from power line contact and about three times as many are seriously injured. When installed and used properly, these systems make operations easier and safer. Because the number of injuries from operating powered industrial trucks was on the rise, the OSHA standard for Powered Industrial Trucks was revised March 1, 1999. 8. Formal training should ensure a working knowledge of crane load charts, and on-the-job training is a great preventative measure if the trainer is qualified. Which of the following is an element of a hearing conservation program? Checking that working conditions are, Read More Common Risks On the Construction SiteContinue, Excavations Inspection Requirements Excavations are often necessary for various reasons, including construction, repairs, and landscaping. Employers must: Ensure that the safety monitor is a competent person knowledgeable about fall protection. As a general rule, 10 feet is the minimum safe working distance from power lines. Furthermore, cranes should be kept away from unsafe working areas; OSHA and ANSI both outline safe distances operators must maintain from a power source when working at a job site. If the boom contacts a power line, the operator holding the control box is usually electrocuted instantly. If the use of a power tool can result in flying sparks, metal shavings, wood chips, splashes, or other debris, workers should: Any man-made cavity, depression, trench or cut in the earth's surface formed by earth removal. http://isoauditorcourse.in/, Your email address will not be published. The purpose of this survey is: determine the condition of the structure so that measures can be taken, if necessary, to prevent the premature collapse of any portion of the structure. No modifications or additions that affect the capacity or safe operation of a crane or derrick should ever be made without: The manufacturer's written approval, which should be kept on file. The greatest hazards posed by hand tools result from: Misuse and improper maintenance (Your Answer). The formula for all simple slope excavations 20 feet (6.11 meters) or less deep states that for every foot of depth, the trench must be excavated back: 6. -- Rigging must be inspected prior to use, be in good shape and have the tag attached. Rated load capacities, recommended operating speeds, and special hazard warnings or instructions must be: Conspicuously posted on the crane, where the crane operator can see them while he is at his control station (Your Answer). Loads suspended by cranes present a high risk to construction workers as 42 percent of all crane-related occupational fatalities have been due to workers being struck by falling objects during a crane's operation. The second method is to roll the load back and forth on the tracks along the bar itself. They are mounted on . Sharp, abrasive, pinching, or otherwise hazardous moving parts of power tools: Must have guards to prevent contact with workers (Your Answer). 10. -- The amount of current and its frequency They are allowed to operate cranes to do maintenance work, to do an inspection, or to verify that the crane is working properly. A crane operator must always lower a load to the ground before leaving the lift or during idle times. Personnel hoisting platforms must be designed by: A qualified engineer, or another competent specialist qualified in structural design (Your Answer). If you work with dump trucks, bucket trucks, cranes, excavators, backhoes, ladders, or other equipment with a long reach, chances are you are working dangerously close to overhead or underground power lines . Do not move any loads over people. Inspect the crane and its components before each use to ensure that all parts are in good working condition. Employees working around overhead cranes should always wear proper head, foot, hand, and eye protection. 10. Inspect the crane and its components before each use to ensure that all parts are in good working condition. The crane operator and any workers below should also be aware of his/her surroundings and never walk under a lift. Using technologies such as load-measuring systems for training and planning can greatly reduce the hazard of overloading and operator incompetency. The area within a 10-foot radius of a power line is considered an unsafe work areaor danger zoneand it must be clearly marked on the ground by insulated barriers, fences, tape, etc. 6. Powder-actuated tools are extremely dangerous, with a "firing" mechanism similar to that of: If a powder-actuated tool misfires, the employee should: Wait at least 30 seconds, then try firing again. To follow exact regulations, you should know the voltage of the power lines that you will be working near.. 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