Tooling U Welding 2024 Exam with Complete Solutions

Tooling U Welding 2024 Exam with Complete Solutions Air-Supplied Respirator - Answer-A breathing device that consists of a full face mask with a hose that connects to a freestanding compressed air cylinder. Air-supplied respirators are used in confined spaces to maintain exposure levels. Alloying Element - Answer-An element that is intentionally added to a metal in order to change its properties. Manganese is a common alloying element in steel. American National Standards Insitute - Answer-ANSI. A private, non-profit organization that administers and coordinates voluntary standards and systems. ANSI helps set guidelines for personal protective equipment used in welding. American Society Of Testing And Materials - Answer-ASTM. An organization that writes and updates specifications for a broad range of materials. ASTM provides specifications for PPE standards for shoes and eyewear in welding. ANSI Z49.1 - Answer-A standards document published by the American National Standards Institute that covers welding PPE and other safety concerns. ANSI Z49.1 is titled 'Safety in Welding, Cutting, and Allied Processes.' Attendants - Answer-Someone trained in permit space entry and surface rescue who remains outside a confined space during entry. The authorized attendant monitors the safety of workers in the confined space. Automatic External Defibrillator - Answer-AED. A portable electronic device that can be used to treat cardiac arrhythmias by allowing the heart to reestablish an effective rhythm. An AED is often used in CPR training. Beryllium - Answer-A hard gray metal. Because it is highly toxic, work involving beryllium should be done with local exhaust ventilation and air-supplied respirators. Central Nervous System - Answer-Comprised of the brain, spinal cord, and complex nerve tissues. The central nervous system controls many different bodily activities and may be damaged by overexposure to some welding fumes. Combustible - Answer-Any substance that is capable of igniting and burning. Oxygen is a combustible used in welding. Compressed Gas - Answer-Any gas held under pressure in a gas cylinder. Gas under pressure may pose a physical hazard from explosion. Conductor - Answer-A material that allows for the flow of electricity. Conductors include metals such as copper and aluminum. Conference Of Governmental Industrial Hygienists - Answer-ACGIH. A member-based organization that recommends and reviews threshold limit values for chemicals used in the workplace. The ACGIH advances worker protection. Confined Space Entry Program - Answer-A written set of policies and procedures for entering permit-required spaces. OSHA requires every employer whose employees enter permit-required spaces to develop a written plan. Cylinder Cart - Answer-Also called a hand truck. A cart on wheels used for moving small, heavy objects. Electric Burns - Answer-An injury caused by the flow of electric current through tissue or bone. Electric burns can cause severe tissue damage. Electrically Charged - Answer-A way of describing a wire or device that has current flowing through it. Welders must observe all necessary safety precautions near electrically charged devices. Electrically Live - Answer-Carrying an electric charge. Electrically live components in a welding power source include the interior lead and conductor. Electrocution - Answer-To be killed or injured by electricity. Electrocution is a main cause of death or injury in welding. Electrode Circuit - Answer-The output circuit of a welding power source, also called the secondary circuit. Electrode circuits are enclosed paths that contain the 60-100 volt electrical power used for welding. Exposure Limits - Answer-Guidelines set by regulatory agencies that employers have to follow to maintain worker safety. Exposure limits include permissible exposure limits and threshold limit values. Face Shields - Answer-A rigid, transparent plastic guard that covers the welder's entire face to protect against dust or splashes. Because face shields do not protect against impacts, they are often worn with goggles or safety glasses with side shields. Filter Lens - Answer-Welding PPE that protects vision against radiant energy given off by the arc. Different shade numbers indicate the intensity of light radiation allowed to pass through a filter lens. Flammable - Answer-A material that can easily ignite and start a fire. Compressed gas cylinders and dust are examples of flammable materials and hazards in welding. Flash Point - Answer-The lowest temperature at which a liquid produces enough vapor to form an ignitable mixture. Liquids with low flash points pose the greatest danger. Fluorine - Answer-A highly reactive chemical element. Gas welding fluxes containing fluorine compounds may give off fumes when heated that may cause eye, nose, and throat irritation.