Health and Safety Exam Questions With Verified Detailed Correct Answers.

The only workers who are not covered by occupational health and safety act in ontario - correct answers c. Nannies / domestic workers In ontario who is responsible for establishing a JHSC - correct answers The Employer The Joint Health and Safety Committee is not responsible for - correct answers Making policies regarding health and safety practices in the workplace Ministry of labour inspectors do not have the power to - correct answers Make improvements to a company health and safety practices A supervisor's responsibilties does not include - correct answers Insuring that management has adequate representation on the JHSC When a worker refuses to work due to perceived danger, the legal steps that must be folowed by workers and management are: - correct answers 1. A worker refusal to work is submitted due to a perceived safety hazard 2. A worker representative from the health and safety committee is called 3. A supervisor must investigate the worker concern 4. A ministry labour inspector is called for a job site inspection Under the IRS supervisors are responsible for... - correct answers e Making sure workers follow the law and company's safety rules And Telling workers about job hazards or dangers Which of the following is an employer not legally obliged to provide - correct answers Work uniforms Health benefits In ontario workplaces with less than 20 employees must have a worker health and safety representative that is selected by the workers - correct answers true For a due diligence defence, an occupational health and safety system must be in place and operating effectively. Which one of the following options meets the requirements of an effective OHS system - correct answers d Monitoring the workplace to ensure compliance Exposure to solvents and degreasers in a car repair facility - correct answers chemical hazard Exposure to x-rays in a dental lab facility - correct answers radiation hazard Exposure to bat droppings in a cave - correct answers biological hazard Exposure to repetitive motion in a metal stamping factory - correct answers ergonomic hazard Exposure to extreme cold weather at a mine site in Nunavut - correct answers Physical hazard Under the ontario occupational health and safety act, an employer must supply their workers with safety boots and hard hats if the job requires it - correct answers False Preferred order for controlling or removing a noisy air compressor in a shop - correct answers 1. Install the compressor in an insulated housing away from the shop 2. Operate the machine remotely with the compressor being in the shop 3. Wear ear plugs while working with the air compressor Which of the following aren't an ergonomic hazard - correct answers Ladder with a broken rung When a worker is injured on the job, the worker is required to take the following steps - correct answers Get first aid at the workplace Report the injury to a supervisor Go to a hospital, medical practitioner or doctor, if necessary Make sure that the employer files a WSIB Form 7 claim if there are lost wages or medical treatment required A company in Alberta with 250 employees had 6 LTIs over the last year. What is the LTIFR? - correct answers 2.4% WHMIS Symbols (from left to right) - correct answers Oxidizing Other Toxic effects Corrosive Acute Toxic Effects Britney is a worker in a petro-chemical plant. Near one of the pressure vessels, she sees a container with liquid insde. There is a faded WHIMIS label on the container but the details are illegible. What should Britney do? - correct answers d. Consult with her supervisor as to the best course of action Which of the following is/are not a correct mechanism of direct entry of toxic substances into a worker's body? - correct answers Sedimentation Centrifuging The absorption rate for toxic substances through the skin is higher on the abdomen than on the forehead and scalp - correct answers False Fine dust particles are more harmful to the lungs than larger ones because (2 reasons) - correct answers They penetrate deeper into the lungs which makes them harder to get out The lungs only clean 10g of matter out per year. Fills up the alveoli making it harder to breathe What is the difference between the TLV-TWAs published by the ACGIH and the TWAELs released by the Ministry of labour? - correct answers The TLV-TWAs are recommended limits whereas the TWAELs are regulated limits The TLV-C or CEL can be exceeded... - correct answers Never Allergic contact dermatitis is an inflammatory skin disease caused by contact allergens and a sensitized skin - correct answers True Anemia occurs when - correct answers There are too few red blood cells in the blood Long-term exposure to low levels of carbon monoxide are likely to result in... - correct answers Drowsiness, headaches and unconsciousness In doing animal testing for determining toxicity, the basic assumption is that... - correct answers There is an exposure threshold below which no adverse health effects are observed LD50 is the airborne concentration (inhaled) that kills 50% of the animals tested - correct answers False An Ontario worker was exposed to the following vapour concentrations over an 8-hour shift. What is the average exposure for the shift? - correct answers 159 ppm/hr Under the Ontario OHSA, which substance below are not defined as "Designated Substances"... - correct answers Poly Vinyl Chloride A TLV-TWA of 10 mg/m^3 has been set for nuisance dusts in the workplace. According to Ontario Regulations Respecting Control of Exposure to Biological or Chemical Agents, the limiting exposure concentrations that must not be exceeded for short term exposure and ceiling exposure are: - correct answers STEV = 30 mg/m^3 CEV = 50 mg/m^3 Give an example for each dust hazard Fibrogenic Carcinogenic Toxic Explosive/Combustible Nuisance - correct answers Fibrogenic - Silica Carcinogenic - Radon Gas Toxic - Lead Explosive/Combustible - Sulphide Ores Nuisance - Limestone Why is smoking cigarettes in uranium mine very bad for you - correct answers Uranium mines are radioactive. Fine radon dusts have a tedency to adhere to smokes and inhaling these combined dusts isn't good. A coal mine explosion can occur even if there is no dispersed dust in the air? - correct answers False A gold mine uses cyanidation as part of the gold extraction and recovery process. What kind of wastewater conditions would you expect in the tailings basin? - correct answers *** Low pH water, dissolved metal ions Identify one primary circulatory system substance that may create lung hazard conditions on an acute basis if it is found at high concentrations in air - correct answers Carbon Monoxide