Insulator Heat and Frost Exam Questions 253A Red Seal Exam Prep Kit
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Complete readings, chapters and learning objectives covering the Canadian Red Seal curriculum and Standards.
Complete Red Seal exams with answers.
Flashcards training program with questions on the front and answers on the back
This is everything you need to easily clear your Canadian Red Seal exams.
Insulators (heat and frost) work with different kinds of insulating material to prevent or reduce the passage of heat, cold, vapour, moisture, sound or fire. They read and interpret drawings and specifications to determine insulation requirements, select the amount and type of insulation to be installed, and measure and cut insulating material to the required dimensions. They then apply, install, repair and maintain insulating material. Insulated surfaces may be finished with materials such as plastics, aluminum, galvanized steel and coated steel, stainless steel, canvas, mastic laminate or finishing cement. Insulators (heat and frost) also lay out and fabricate parts on-site, or remove or seal off old insulation.
Types of insulating materials that may be used include calcium silicate, ceramic fibre, elastomeric foam, nano-like technology, mineral fibre, fibreglass, polyurethane, polystyrene and cellular glass. They may be used for systems such as plumbing, air-handling, exhaust, heating, cooling and refrigeration, for piping equipment, pressure vessels and storage tanks, as well as for walls, floors and ceilings of buildings, industrial complexes and ships.
Removing old insulating material such as asbestos, ceramic fibres, lead and mould is also part of the trade. Special training and licenses may be required to deal with these types of materials. Spraying insulating materials and installing fireproofing and fire stop systems are also specialized parts of the trade.