OSHA 10 Test Answers -2025 Questions with 100% Correct Answers

A blaster is: - A competent person who uses explosives 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 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. - Ten times louder than A scaffold must be erected "plumb, square, and level," because: - If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold A shock's severity depends on: - -- Length of exposure to electricity -- The amount of current and its frequency -- The current's path A system used to arrest a worker in a fall from a working level that consists of an anchorage, connectors, a body belt or body harness, and may include a lanyard, deceleration device, lifeline, or suitable combinations of these is called a: - Personal Fall Arrest System (PFAS) A training program to teach proper lifting techniques should cover: - -- Knowledge of the basic anatomy of the spine, muscles, and joints of the trunk -- The use of safe lifting postures and timing Acute silicosis occurs after a few months or as long as 2 years following exposures to ________ concentrations of respirable crystalline silica. - extremely high AEGCP's are implemented on construction sites to oversee: - -- All cord sets-- Cord sets and equipment connected by plug and cord -- Receptacles that are not part of a building or structure All explosives must be accounted for at all times, and all not being used must be kept in a: - locked magazine All hazards involved in the use of power tools can be prevented by following five basic safety rules: Keep all tools in good condition with regular maintenance; examine each tool for damage before use; operate according to the manufacturer's instructions; provide and use the proper protective equipment; and: - use the right tool for the job All jacks - lever and ratchet jacks, screw jacks, and hydraulic jacks - must have a device that stops them from: - Jacking up too high (a stop indicator) All portable electric tools that are damaged shall be: - Removed and tagged "Do Not Use" All vehicles used for the transportation of explosives shall have tight floors, and any exposed sparkproducing metal on the inside of the body shall be: - Covered with wood or other non-sparking material Anytime an adapter is used to accommodate a two-hole receptacle, the adapter wire must: - be attached to known ground Approximately 75 percent of struck-by fatalities involve: - Heavy equipment such as cranes or trucks 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 At holes, guardrail systems must be set up: - On all unprotected sides and edges Audiometric testing monitors an employee's hearing: - over timeBecause 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. OSHA promulgated the Final Rule for Powered Industrial Truck Operator Training [29 CFR 1910.178(1)], which: - -- Requires operator training and licensing as well as periodic evaluations of operator performance -- Requires operators to take and pass a written and road test (similar to a driver's education) before they can operate the forklift. Because using cranes or derricks to hoist personnel poses a serious risk to the employees being lifted, any cranes and derricks that hoist personnel must: - -- Be placed on a firm foundation and be uniformly level within 1 percent of level grade -- Move the personnel platform slowly and cautiously and have rotation-resistant rope with a safety factor of 10 -- Have all brakes and locking devices set when the occupied personnel platform is in stationary position 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 Before the start of each work shift, it is mandatory that: - A competent person inspects the scaffold before the start of each work shift Chemical manufacturers and importers must convey the hazard information they learn from their evaluations to downstream employers by means of labels on containers and: - Safety Data Sheet 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 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 Electricity travels in closed circuits, and its normal route is through a conductor. Electric shock occurs when: - Your body becomes part of the circuit