CHST Exam Questions With Verified Answers 100% Solved

CHST Exam Questions With Verified Answers 100% Solved In order of decreasing effectiveness, which of the following correctly indicates the order of correct of actions taken to prevent Industrial dermatosis - answerSubstitution, gloves, barrier cream Which of the following types of ionizing radiation is considered to be only an internal hazard? - answerAlpha radiation What type of radiation from welding operations is The most damaging to the eye? - answerInfrared If variations in noise levels are occurring at a rate more often than once per second the noise is considered______________ under OSHA is noise standard. - answerContinuous Which of the following heat stress indicators is most commonly used in the health and safety field - answerWet bulb globe thermometer index What disease with you associate with the construction industry? - answerRaynaud's Calculate the WBGT index from the following information. Outdoor global temperature of 98°, wet bulb temperature of 90° dry bulb temperature 94° - answer92°F. WBGT = .7(WB) + .2(GT) + .1(DB) OSHA requires the use of a registered professional engineer to ensure the safety of complicated unusual or high-risk structures which of the following fails to correctly identify condition where OSHA requires the services of a registered professional engineer - answerTo design sloping invention plans for excavations in types of soil deeper than 16 feet Within the OSHA standards for construction, 1926. 451 provide guidance on the requirements and specifications for various types of scaffold. Among the requirements are several specifications concerning the type and use of wood planking all of the following requirements from OSHA 1926.451 - answerScaffold planking must be at least 1500 psi fiber (Stress grade) Scaffold plank in Shelby scaffold grade or equivalent Only light duty scaffold (25 psf) The maximum permissible span for 2X 10 nominal thickness lumber is 8 feet The following description best fits the intent of the OSHA standards when referring to a competent person - answerThe person 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 correct of measures to eliminate them Rolling tower scalpels are popular with most of the trades for example painters, maintenance man, electricians, sign installers, heating in the leading man. The rolling tower is easy to move around in an area and provides a stable platform for which to work. Generally, the tower scaffold are equipped with five or 8 inch casters that have a break permitting the worker to lock the wheel. Additionally, The scaffold can be equipped without meters. OSHA requires out Riggers on any scaffold with a height to base ratio exceeding? - answer4 The OSHA regulation covering underground construction is 1926.800, which covers the construction of underground tunnels, shafts, chambers and cut-and-cover excavations. According to OSHA 1926.800 ventilation must be provided to maintain underground air quality. How many cubic feet of fresh air is required for each worker underground? - answer200 ft.³ The physiological property of matter that defines the capacity of a chemical to harm or injure a living organism by other than mechanical means is the definition of? - answerToxicity - The question accurately states the definition of toxicity Within the OSHA standards for construction, 1926.451 provides guidance on the requirements and specifications for various types of scaffold. According to the standard all the following are correct - answerScaffold erection is not permitted except under the direction of a competent person Guard rails and toe boards shall be installed on all open sides and ends of platforms more than 10 feet above the ground or floor, except needle beam scaffolds and floats All planking Used must be scaffold grade or equivalent Depending on the industry, frequent inspection of chains is required, the best way to inspect chains during these inspections is to: - answerPerform a detailed link by link inspection of entire chain Which of the following electrical devices would most likely contain polychlorinated biphenyl (PCBs) - answerTransformers, capacitors, fluorescent light ballast. - PCBs are found in certain electrical devices The OSHA regulation covering underground construction is 1926.800, which covers the construction of underground tunnels, shafts, chambers and cut-and-cover excavations. The regulation establishes a competent person as the responsible party for various inspection and oversight operations in the underground environment which of the following is not a specific