improper grounding of circuitry and equipment. 4. -- the weight 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 . Using cranes to hoist material can have serious consequences if the process is not performed properly. The operator remains adjacent to the equipment and is not engaged in any other duties. Workers should be trained to stay clear of the hoist, and they should never walk beneath loads suspended in the air. This guide is aimed at those in control and those performing any work under or near to overhead power lines. -- Rigging must be inspected prior to use, be in good shape and have the tag attached. The slings that cranes use to hold suspended loads are also a key element in this kind of material handling. Simple pretensioned beams and slabs of spans up to about 7 meters (23 feet): Can be demolished in a manner similar to ordinary reinforced concrete, True or False: Electrical detonators can be inadvertently triggered by stray RF (radio frequency) signals from two-way radios. There are distinct types of mechanized access platforms and the individual types may also be known as a "cherry . The top edge of a guardrail must be from 39 to 45 inches above the walking/working level, and there must also be a means of protection from: Falling between the top rail and the walking surface. "Remote work it will . Supervisor accounts for all workers. 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? Manual materials is the most common category of compensable injuries in the United States work force, with four out of five of those injuries involving: 10. In general, head protection should do which of the following? OSHA 1926.454(c) states: When an employer has reason to believe that an employee lacks the skill or understanding needed for safe work involving the erection, use or dismantling of scaffolds, the employer shall: Retrain each such employee so that the requisite proficiency is regained (Your Answer). 2. Oftentimes, operators mistakenly believe they are able to rely on their instinct or experience to determine whether a load is too heavy. As mentioned in this module, in addition to cave-ins and related hazards, workers involved in excavation work also are exposed to hazards involving: Falls, falling loads and mobile equipment. as the standard pertains to their work. This person watches for interference while the operator overhead focuses on the task at hand. What type of scaffold - other than the tube and coupler scaffold - is ideal for use around complex structures? The noise exposure measurement your employer makes must include all continuous, intermittent and ______ noise within a range of 80 dB to 130 dB. 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. When dismantling a scaffold, all work should be conducted: Tube and coupler scaffolds over 125 feet high must be designed by: What type of scaffold - other than the tube and coupler scaffold - is ideal for use around complex structures? Which of the following is an element of a hearing conservation program? Performing regular maintenance ensures the hoist and overhead crane remain in good working order and that all operations run smoothly. Analysis of overhead crane accidents reveals three common safety hazards that every company using overhead lift systems should be aware of to keep their workers safe. Power line contact is literally defined as the inadvertent contact of any metal part of a crane with a high-voltage power line. 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). $$ Assign a second employee on the ground to monitor the area, in addition to the worker at height. 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. If a powder-actuated tool misfires, the employee should: Wait at least 30 seconds, then try firing again (Your Answer). Operators and controllers must maintain 100 percent focus on the task at hand to avoid potentially dangerous situations. is inherently dangerous. It is particularly relevant where plant or equipment such as scaffold components, roofing or other building materials, cranes or irrigation equipment are operated or moved under or in the vicinity of overhead power lines. "Employers must require employees to wear a protective helmet in areas where they are at risk of falling objects injuring the head. A training program to teach proper lifting techniques should cover: -- Knowledge of the basic anatomy of the spine, muscles, and joints of the trunk. OSHA requires employers to provide formal training for all crane operators, but operator certification is only required for operators using equipment with a maximum manufacturer-rated capacity greater than 2,000 pounds. When moving items, he or she should never raise the load higher than required for clearance. When a crane is overloaded, it is subject to structural stresses that may cause irreversible damage. Overall, its important for operators and workers to receive the appropriate training to avoid danger zones where electrocution can occur. Electricity travels in closed circuits, and its normal route is through a conductor. Gloves that are chemically resistant are usually made from: 1. Concrete foundation: A tower crane always sits on a concrete foundation, where anchors are placed to secure the crane to the ground. Assist with the cleaning and maintenance of the crane after an operation. When operating a hoist, properly trained employees in the vicinity should understand that they are working in a dangerous area. 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). If the use of a power tool can result in flying sparks, metal shavings, wood chips, splashes, or other debris, workers should: Protect themselves by wearing the proper PPE (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. This field is for validation purposes and should be left unchanged. The first step in building a scaffold is to: 3. Properly store and secure the crane when not in use. Jun 2018 - Jan 20234 years 8 months. 6. Crane Safety Checklist Download Free Template Assist with the assembly and/or disassembly of crane components as needed. Prior to starting all demolition operations, OSHA 1926.850 (a) requires that an engineering survey of the structure be conducted by a competent person. What is a logical reason for this impact? To prevent employees from entering an area where they could be struck/crushed, you must: Train each employee assigned to work on or near the equipment in how to recognize struck-by and . Here are some duties of a crane operator: The operator must not leave the controls while the load is suspended except where ALL of the following criteria are met: The four criteria immediately above do not apply to working gear (such as slings, spreader bars, ladders, and welding machines) where the weight of the working gear is negligible relative to the lifting capacity of the equipment as position, and the working gear is suspended over an area other than an entrance or exit. The Trustees work to protect the area's ecological, scenic, and historic importance. True or False: There is usually some form of warning before a cave-in. Hazards- Load, Lifting Equipments, crane, booms, Control measurures- Crane must be certified, Operartor must be cerfiried, Lifting aceessories must be certified, Lifting area must be barricated, and clear, Rigger must be certified, and proper communication during lifting, load must be clarify before lift, permit to work must be approved by the concern authority, Safety signage must be posted . The greatest hazards posed by hand tools result from: Misuse and improper maintenance (Your Answer). -- The amount of current and its frequency Here are some duties of a crane crew: Monitor the working area and ensure no hazards or obstacles are in the vicinity of the crane. 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. It is important to, Read More When Should Excavations Be Inspected?Continue, A 47 year old crane operator is facing charges of driving while intoxicated and leaving the scene of an, Read More Allegedly Drunk Crane Operator Crashes into 4 Cars on New York HighwayContinue, Forklift trucks are an important piece of equipment for many businesses. Everyone in the workplace has a work health and safety duty. Your email address will not be published. 9. Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Severe Storm and Flood Recovery Assistance. 9. Countless companies in the manufacturing and construction industries rely on overhead cranes to lift and transport materials. The first is to mount the entire device on a rotating pivot, and simply rotate the load-bearing boom or beam around. OSHA also regulates that overhead crane operators use precautions when working near power lineseven outside of the 10-foot radius. Approach distances are only part of an overall safe system of work you should use when working in the vicinity of overhead electric lines and associated electrical equipment. Operators must complete three separate aspects of powered industrial truck training: formal training, practice training, and: 5. Resist penetration by objects and absorb the shock of a blow. If the hoist tower is not enclosed, the hoist platform or car must be totally enclosed on all sides for the full height between the floor and: 1. Train each employee assigned to work on or near the equipment ("authorized personnel") in how to recognize struck-by and pinch/crush hazard areas posed by the rotating superstructure. 2. 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