Sandra Ranson
Quiz por , criado more than 1 year ago

MC and T/F questions from 2012/2013 and 2013/2014

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Sandra Ranson
Criado por Sandra Ranson mais de 6 anos atrás
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MINE462 Health and Safety

Questão 1 de 42

1

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.

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 2 de 42

1

A company with 250 employees had 6 LTIs last year. What is the LTIFR?

Selecione uma das seguintes:

  • 2

  • 2.4

  • 3

  • 12

  • 15

Explicação

Questão 3 de 42

1

The TLV-C or CEL can be exceeded...?

Selecione uma das seguintes:

  • Once per day

  • Once per hour

  • Only for 15 minutes at a time

  • Never

Explicação

Questão 4 de 42

1

A gold mine uses cyanidation as a part of the gold extraction process. What kind of wastewater conditions would you expect in the tailings?

Selecione uma das seguintes:

  • Acid rock drainage

  • High pH water, free cyanide and cyanide compounds

  • Low pH water, dissolved metal ions

  • Suspended solids

Explicação

Questão 5 de 42

1

Identify the substance that may create acute lung hazard conditions if found in high concentration in the air

Selecione uma das seguintes:

  • Nitrogen gas

  • Radon gas

  • 95% relative humidity (saturated) air

  • Carbon monoxide

Explicação

Questão 6 de 42

1

Hydrogen sulfide gas has a distinctive odor that is noticeable at high concentrations (>5%)

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 7 de 42

1

Radon has a half life of approx 4 days. How much of the original material of a radon sample will be left after 24 days?

Selecione uma das seguintes:

  • 1/4

  • 1/16

  • 1/32

  • 1/64

  • 1/128

  • 1/256

Explicação

Questão 8 de 42

1

Most common cause of workplace injury?

Selecione uma das seguintes:

  • Struck by object

  • Slips and falls

  • Bending/climbing/twisting

  • Repetitive motion

  • Contact with hot objects

Explicação

Questão 9 de 42

1

Which of the following is a confined space

Selecione uma das seguintes:

  • Ball Mill

  • Pressure vessel

  • Mine drift

  • Refuge station

  • Ball mill AND Pressure vessel

  • Mine drift AND refuge station

Explicação

Questão 10 de 42

1

Pale face + cool/moist skin + dizziness = ?

Selecione uma das seguintes:

  • Heat exhaustion

  • Heat stroke

  • Heat syncope

  • Dehydration

Explicação

Questão 11 de 42

1

Rights of the worker include?

Selecione uma ou mais das seguintes:

  • Right to know about dangers in the workplace and what to do

  • Right to formulate a safety policy for the workplace

  • Right to participate in keeping the workplace safe

  • Right to supervise other workers

  • Right to refuse unsafe work

Explicação

Questão 12 de 42

1

The only workers who are not covered by the Occupational Health and Safety Act are transient agricultural laborers.

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 13 de 42

1

The three principal states of "occupational health" that must be satisfied (ie no departures from well-being) are:

Selecione uma ou mais das seguintes:

  • Surveillance

  • Mental

  • Occupational

  • Social

  • Physical

  • Ergonomic

Explicação

Questão 14 de 42

1

A biologic reaction that occurs within the lungs due to exposure to toxic hazards can create a breakdown of the walls of the alveoli, resulting in enlarged air spaces within the alveoloar region and decreased lung capacity to effectively diffuse oxygen into the blood. This disease is called:

Selecione uma das seguintes:

  • Asbestosis

  • Emphysema

  • Silicosis

  • Smoker's lung

  • Bronchitis

Explicação

Questão 15 de 42

1

In Ontario, who is responsible for establishing a Joint Health and Safety Committee

Selecione uma das seguintes:

  • Employer

  • Ministry of Labour

  • Union

  • Worker

Explicação

Questão 16 de 42

1

What would be the preferred choice for controlling or removing a noisy air compressor?

Selecione uma das seguintes:

  • Wear earplugs while operating the compressor

  • Operate the machine remotely with the compressor in the shop

  • Install the compressor in insulated housing away from the shop

Explicação

Questão 17 de 42

1

Which of the following is/are not an ergonomic hazard

Selecione uma ou mais das seguintes:

  • Lifting heavy objects

  • Slippery floors

  • Poor lighting in a work area

  • Ladder with a broken rung

  • Keyboard at improper height

Explicação

Questão 18 de 42

1

Which are not mechanisms of direct entry of toxic substances to the body?

Selecione uma ou mais das seguintes:

  • Inhalation

  • Sedimentation

  • Injection

  • Centrifuging

  • Ingestion

Explicação

Questão 19 de 42

1

Allergic contact dermatitis is an inflammatory skin disease caused by contact allergens and sensitized skin.

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 20 de 42

1

What condition is anemia?

Selecione uma das seguintes:

  • Too many white blood cells

  • Too many red blood cells

  • Too few white blood cells

  • Too few red blood cells

Explicação

Questão 21 de 42

1

Long term exposure to low levels of CO can cause what?

Selecione uma das seguintes:

  • Heart attacks and strokes

  • Drowsiness, headaches, and unconsciousness

  • Liver and kidney damage

  • Lung cancer

Explicação

Questão 22 de 42

1

What is the base assumption of animal testing?

Selecione uma das seguintes:

  • It is more reliable than human testing

  • There is an exposure threshold below which no adverse health effects are observed

  • Rats and mice are more sensitive to chemical hazards than humans

  • Rats and mice are representative of human physiology

Explicação

Questão 23 de 42

1

LD50 is the airborne/inhaled concentration that kills 50% of the animal tested

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 24 de 42

1

A coal mine explosion requires coal dust in the air in order to occur.

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 25 de 42

1

Where is methane gas likely to be found in a coal mine?

Selecione uma das seguintes:

  • Near the roof of a chamber

  • Near the floor of a chamber

  • Only if an explosion occurs

  • Nowhere near any chamber

Explicação

Questão 26 de 42

1

The W65 Self-Rescuer works in CO gas environments how?

Selecione uma das seguintes:

  • Filters out CO

  • Provides oxygen

  • Transforms CO into C and O2

  • Transforms CO into CO2

  • Covers nose and mouth from CO exposure

Explicação

Questão 27 de 42

1

Why is radon gas dangerous?

Selecione uma ou mais das seguintes:

  • Toxic to breath

  • Short lived but energetic progenies

  • Progenies adhere to dust particles that lodge themselves in the lungs

  • Widely present in many homes

Explicação

Questão 28 de 42

1

Exposure to UV rays can lead to what?

Selecione uma ou mais das seguintes:

  • Baldness

  • Dandruff

  • Cataracts

  • Acne

  • Skin irritation

Explicação

Questão 29 de 42

1

Which process would NOT aid evaporative cooling of the body

Selecione uma das seguintes:

  • Inducing excessive dripping of sweat

  • Reduce body surface area covered by clothing

  • Reduce humidity in the surrounding area

  • Increase the velocity of airflows in the workplace

Explicação

Questão 30 de 42

1

Which factor does not contribute to the severity of an arc flash?

Selecione uma das seguintes:

  • Available current

  • Distance to the electrical source

  • How long to shut off the current

  • Weather

Explicação

Questão 31 de 42

1

What is the JHSC not responsible for?

Selecione uma das seguintes:

  • Hearing concerns of workers and health and safety representatives

  • Making a policies regarding health and safety practices in the workplace

  • Providing a process to identify health and safety issues

  • Making recommendations in regards to health and safety issues

Explicação

Questão 32 de 42

1

Ministry of Labour Inspectors do not have the power to do what?

Selecione uma das seguintes:

  • Inspect workplaces without warning

  • Issue orders to correct dangerous conditions

  • Investigate work refusal complaints

  • Make improvements to company health and safety practices

Explicação

Questão 33 de 42

1

Which of the following is not a supervisor responsibilities?

Selecione uma das seguintes:

  • Informing workers of job hazards or dangers

  • Making sure workers use safety and protective equipment when required

  • Making sure workers follow the law and company safety policy

  • Making sure management has adequate representation of the JHSC

Explicação

Questão 34 de 42

1

Selecione das listas do Menu para completar o texto.

Order the worker refusal process properly:
( Step 1:, Step 2:, Step 3:, Step 4: ) Worker representative from Health and Safety Committee is called
( Step 1:, Step 2:, Step 3:, Step 4: ) Ministry of Labour inspector is called
( Step 1:, Step 2:, Step 3:, Step 4: ) Supervisor investigates safety hazard
( Step 1:, Step 2:, Step 3:, Step 4: ) Work is refused to to a perceived safety hazard

Explicação

Questão 35 de 42

1

What are supervisors responsible according to the Internal Responsibility System?

Selecione uma ou mais das seguintes:

  • Training workers in OHS

  • Making sure workers follow the law and company safety rules

  • Keeping records of work injuries

  • Telling workers about job hazards

Explicação

Questão 36 de 42

1

What is an employer not legally obliged to provide?

Selecione uma ou mais das seguintes:

  • Training

  • Health and Safety policy

  • Uniforms

  • Safety guards on machinery

  • Health benefits

Explicação

Questão 37 de 42

1

In Ontario, workplaces with less than 20 workers must have a Worker Health and Safety Rep that is selected by the workers.

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 38 de 42

1

For a due diligence defense, and OHS system must be in place and operating effectively. Which of the following meets the requirements for an effective OHS system?

Selecione uma das seguintes:

  • Hiring employees who have experience in a particular activity

  • Posting notices of safety rules on the JHSC bulletin board

  • Encouraging employees to work safely

  • Monitoring the workplace to ensure compliance

Explicação

Questão 39 de 42

1

The absorption rate of toxic substances through the skin is greater on the forehead than on the abdomen.

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 40 de 42

1

The TLV-TWA for nuisance dusts in the workplace is 10 mg/m3. What would be the STEV and CEV

Selecione uma das seguintes:

  • STEV = 10 mg/m3, CEV = 20 mg/m3

  • STEV = 20 mg/m3, CEV = 35 mg/m3

  • STEV = 30 mg/m3, CEV = 50 mg/m3

  • STEV = 40 mg/m3, CEV = 80 mg/m3

Explicação

Questão 41 de 42

1

Selecione das listas do Menu para completar o texto.

Sulphide ores are ( an explosive, a carcinogenic, a toxic, a fibrogenic, a nuisance ) hazard.
Radon gas is ( a carcinogenic, an explosive, a toxic, a nuisance, a fibrogenic ) hazard.
Lead is ( a toxic, a carcinogenic, an explosive, a nuisance, a fibrogenic ) hazard.
Silica is ( a fibrogenic, a toxic, a carcinogenic, a nuisance, an explosive ) hazard.
Limestone is ( a nuisance, a toxic, a fibrogenic, an explosive, a carcinogenic ) hazard.

Explicação

Questão 42 de 42

1

A mine drift with ventilation flow of 15 m3/sec and a radon progeny concentration of 0.6 WL. What airflow is required to dilute it to 0.33 WL.

Selecione uma das seguintes:

  • 5 m3/sex

  • 10.9 m3/sec

  • 20.7 m3/sec

  • 45.3 m3/sec

Explicação

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