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

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Sandra Ranson
Erstellt von Sandra Ranson vor mehr als 6 Jahre
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MINE462 Health and Safety

Frage 1 von 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.

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 2 von 42

1

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

Wähle eine der folgenden:

  • 2

  • 2.4

  • 3

  • 12

  • 15

Erklärung

Frage 3 von 42

1

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

Wähle eine der folgenden:

  • Once per day

  • Once per hour

  • Only for 15 minutes at a time

  • Never

Erklärung

Frage 4 von 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?

Wähle eine der folgenden:

  • Acid rock drainage

  • High pH water, free cyanide and cyanide compounds

  • Low pH water, dissolved metal ions

  • Suspended solids

Erklärung

Frage 5 von 42

1

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

Wähle eine der folgenden:

  • Nitrogen gas

  • Radon gas

  • 95% relative humidity (saturated) air

  • Carbon monoxide

Erklärung

Frage 6 von 42

1

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

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 7 von 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?

Wähle eine der folgenden:

  • 1/4

  • 1/16

  • 1/32

  • 1/64

  • 1/128

  • 1/256

Erklärung

Frage 8 von 42

1

Most common cause of workplace injury?

Wähle eine der folgenden:

  • Struck by object

  • Slips and falls

  • Bending/climbing/twisting

  • Repetitive motion

  • Contact with hot objects

Erklärung

Frage 9 von 42

1

Which of the following is a confined space

Wähle eine der folgenden:

  • Ball Mill

  • Pressure vessel

  • Mine drift

  • Refuge station

  • Ball mill AND Pressure vessel

  • Mine drift AND refuge station

Erklärung

Frage 10 von 42

1

Pale face + cool/moist skin + dizziness = ?

Wähle eine der folgenden:

  • Heat exhaustion

  • Heat stroke

  • Heat syncope

  • Dehydration

Erklärung

Frage 11 von 42

1

Rights of the worker include?

Wähle eine oder mehr der folgenden:

  • 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

Erklärung

Frage 12 von 42

1

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

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 13 von 42

1

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

Wähle eine oder mehr der folgenden:

  • Surveillance

  • Mental

  • Occupational

  • Social

  • Physical

  • Ergonomic

Erklärung

Frage 14 von 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:

Wähle eine der folgenden:

  • Asbestosis

  • Emphysema

  • Silicosis

  • Smoker's lung

  • Bronchitis

Erklärung

Frage 15 von 42

1

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

Wähle eine der folgenden:

  • Employer

  • Ministry of Labour

  • Union

  • Worker

Erklärung

Frage 16 von 42

1

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

Wähle eine der folgenden:

  • 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

Erklärung

Frage 17 von 42

1

Which of the following is/are not an ergonomic hazard

Wähle eine oder mehr der folgenden:

  • Lifting heavy objects

  • Slippery floors

  • Poor lighting in a work area

  • Ladder with a broken rung

  • Keyboard at improper height

Erklärung

Frage 18 von 42

1

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

Wähle eine oder mehr der folgenden:

  • Inhalation

  • Sedimentation

  • Injection

  • Centrifuging

  • Ingestion

Erklärung

Frage 19 von 42

1

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

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 20 von 42

1

What condition is anemia?

Wähle eine der folgenden:

  • Too many white blood cells

  • Too many red blood cells

  • Too few white blood cells

  • Too few red blood cells

Erklärung

Frage 21 von 42

1

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

Wähle eine der folgenden:

  • Heart attacks and strokes

  • Drowsiness, headaches, and unconsciousness

  • Liver and kidney damage

  • Lung cancer

Erklärung

Frage 22 von 42

1

What is the base assumption of animal testing?

Wähle eine der folgenden:

  • 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

Erklärung

Frage 23 von 42

1

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

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 24 von 42

1

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

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 25 von 42

1

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

Wähle eine der folgenden:

  • Near the roof of a chamber

  • Near the floor of a chamber

  • Only if an explosion occurs

  • Nowhere near any chamber

Erklärung

Frage 26 von 42

1

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

Wähle eine der folgenden:

  • Filters out CO

  • Provides oxygen

  • Transforms CO into C and O2

  • Transforms CO into CO2

  • Covers nose and mouth from CO exposure

Erklärung

Frage 27 von 42

1

Why is radon gas dangerous?

Wähle eine oder mehr der folgenden:

  • Toxic to breath

  • Short lived but energetic progenies

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

  • Widely present in many homes

Erklärung

Frage 28 von 42

1

Exposure to UV rays can lead to what?

Wähle eine oder mehr der folgenden:

  • Baldness

  • Dandruff

  • Cataracts

  • Acne

  • Skin irritation

Erklärung

Frage 29 von 42

1

Which process would NOT aid evaporative cooling of the body

Wähle eine der folgenden:

  • 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

Erklärung

Frage 30 von 42

1

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

Wähle eine der folgenden:

  • Available current

  • Distance to the electrical source

  • How long to shut off the current

  • Weather

Erklärung

Frage 31 von 42

1

What is the JHSC not responsible for?

Wähle eine der folgenden:

  • 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

Erklärung

Frage 32 von 42

1

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

Wähle eine der folgenden:

  • Inspect workplaces without warning

  • Issue orders to correct dangerous conditions

  • Investigate work refusal complaints

  • Make improvements to company health and safety practices

Erklärung

Frage 33 von 42

1

Which of the following is not a supervisor responsibilities?

Wähle eine der folgenden:

  • 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

Erklärung

Frage 34 von 42

1

Wähle von der Dropdown-Liste, um den Text zu vervollständigen.

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

Erklärung

Frage 35 von 42

1

What are supervisors responsible according to the Internal Responsibility System?

Wähle eine oder mehr der folgenden:

  • Training workers in OHS

  • Making sure workers follow the law and company safety rules

  • Keeping records of work injuries

  • Telling workers about job hazards

Erklärung

Frage 36 von 42

1

What is an employer not legally obliged to provide?

Wähle eine oder mehr der folgenden:

  • Training

  • Health and Safety policy

  • Uniforms

  • Safety guards on machinery

  • Health benefits

Erklärung

Frage 37 von 42

1

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

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 38 von 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?

Wähle eine der folgenden:

  • 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

Erklärung

Frage 39 von 42

1

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

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 40 von 42

1

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

Wähle eine der folgenden:

  • 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

Erklärung

Frage 41 von 42

1

Wähle von der Dropdown-Liste, um den Text zu vervollständigen.

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.

Erklärung

Frage 42 von 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.

Wähle eine der folgenden:

  • 5 m3/sex

  • 10.9 m3/sec

  • 20.7 m3/sec

  • 45.3 m3/sec

Erklärung

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