CHST Exam Questions With Verified Answers 100% Solved

CHST Exam Questions With Verified Answers 100% Solved When must a handrail be added to stairwell? When it is 30 inches or one having four or more risers. What are four concerns a CHST must address regarding unsafe use of ladders and stairwells? Slippery conditions, handrails on specific types, not used for storage and examined for weak structure. Specifications state that scaffolding must be of sufficent strength to hold more than how many times its specified weight? 4 times. How often should ropes and rigging in suspension scaffolding be inspected for damage? At the beginning and during each shift. How far from electrical power lines must a scaffold be? 10 feet What are three things scaffolds must have? Toe boards, guardrails and mid rails. How many catagories does an MSDS have? 16 What is the cheif concern in choosing the appropriate respirator? Material hazards presented by the worksite. What type of respirator is not good for workers with asthma? Negative pressure. Workers medical conditions are factors in choosing respirators. What are the three main factors to consider when choosing respirators? 1. The physical configuration of the jobsite. 2. The workers medical conditions. 3. Worker comfort. What does MFF stand for? Metal Fume Fever. What are the symptoms of MFF? Resemble classical flu symptoms. Welders who work with hat tend to have higher incidence of MFF? Zinc Oxides What can prevent MFF? Welders to wear respirators and local or exhaust ventilation can effect nearby workers. What are the safe operating procedures pertaining to utlility and service lines when a building is being prepared for demolitions. 1. Conduct survey inspection. 2. Document specific hazards. 3. Evaluate utility functions servicing the building.