CHST - Exam Prep Questions and Answers 100% Pass

CHST - Exam Prep Questions and Answers 100% Pass Class I Standpipe - For professional Fire Fighters. Hose is 2 1/2 inches in diameter. Typically found in stairwells Class II Standpipe - Hose is 1 1/2 inches in diameter. For occupants in the building and intended for all spaces in building. Typically found in cabinets and spaced according to the hose length. Class III Standpipe - Both firefighters and occupants. Adjusts to 1 1/2 or 2 1/2 in diameter. How far from electrical power lines must a scaffold be? - 10 feet The refuge area must have a fire-resistance rating of at least how much? - Minimum one hour fire resistance for walls protecting refuge area from inside of building 2 100% Pass Guarantee Katelyn Whitman, All Rights Standpipe System - An arrangement of piping, valves, and hose connections installed in a structure to deliver water for fire hoses. Metal Fume Fever - What results from the inhalation of fumes, like iron, nickel, copper, zinc. Often results from welding without proper ventilation/respiratory protection. Resembles flu like symptoms Symptoms of Metal Fume Fever - Flu like symptoms such as headaches, fever, chills, muscle aches/weakness, thirst, nausea, vomiting, chest pain, fatigue, stomachaches. Employees who work with what substance(s) tend to have higher incidents of Metal Fume Fever? - Zinc Oxide, Chromium (stainless steel), nickel, manganese, cobalt, lead, arsenic, copper platinum, selenium, gold and silver What can prevent Metal Fume Fever? - local or exhaust ventilation and personal respirators What are the safe operating procedures for utility and service lines PRIOR to demolitions? - 1. Conduct survey report 3 100% Pass Guarantee Katelyn Whitman, All Rights 2. Document specific hazards 3. Evaluate utility functions servicing the building What utilities must be cut PRIOR to demolition? - Electric, water, gas, sewer and any other service What should the (preliminary) demolition survey report include? - 1. Whether there are dangers posed to workers 2. Whether there are dangers posed to the environment Ex: Chemicals, gases, explosives, flammables, or any other hazardous materials in storage tank(s) When can materials be dropped through floor ope