Chemical Safety Online Quiz

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Quizzes Created: 1 | Total Attempts: 699
Questions: 25 | Attempts: 699

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Chemical Safety Online Quiz - Quiz


Questions and Answers
  • 1. 

    MSDS

    • A.

      Are self prepared precaution list

    • B.

      Are written by manufacturers and government agencies

    • C.

      Are written by manufacturers only

    • D.

      Chemical handling process

    Correct Answer
    C. Are written by manufacturers only
    Explanation
    The correct answer is "are written by manufacturers only." MSDS stands for Material Safety Data Sheets, which are documents prepared by manufacturers to provide information about the potential hazards, safe handling procedures, and emergency response measures for chemicals. These sheets are not prepared by government agencies but are solely the responsibility of the manufacturers.

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  • 2. 

    The information provided in MSDS is distributed in ________ sections.(mention in digit only)

    Correct Answer
    16
    Explanation
    The information provided in an MSDS (Material Safety Data Sheet) is distributed in 16 sections.

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  • 3. 

    Which highly flammable gas is released when charging an Acid lead battery?

    • A.

      Sulfur dioxide (SO2)

    • B.

      Hydrogen (H2)

    • C.

      Carbon dioxide (CO2)

    • D.

      None of these

    Correct Answer
    B. Hydrogen (H2)
    Explanation
    When charging an Acid lead battery, hydrogen gas (H2) is released. This is because the charging process causes the water in the battery's electrolyte solution to break down into hydrogen and oxygen gases. Hydrogen gas is highly flammable and can be dangerous if not handled properly.

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  • 4. 

    The Bhopal gas tragedy happened on :

    • A.

      December 3, 1994

    • B.

      October 3, 1984

    • C.

      October 3, 1994

    • D.

      December 3, 1984

    Correct Answer
    D. December 3, 1984
    Explanation
    The Bhopal gas tragedy refers to the catastrophic incident that occurred on December 3, 1984. It was a result of a gas leak at the Union Carbide India Limited (UCIL) pesticide plant in Bhopal, Madhya Pradesh, India. The leak released a toxic cloud of methyl isocyanate and other chemicals, resulting in the immediate death of thousands of people and causing long-term health issues for many others. The incident is considered one of the world's worst industrial disasters.

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  • 5. 

    The Zone in which hazardous atmosphere formed by dust cloud in air is known as 

    • A.

      Zone 1

    • B.

      Zone 0

    • C.

      Zone 21

    • D.

      Zone 20

    Correct Answer
    D. Zone 20
    Explanation
    Zone 20 is the correct answer because it refers to the zone in which a hazardous atmosphere formed by a dust cloud in the air is present for long periods or frequently. This means that the concentration of the dust cloud is present and likely to occur during normal operations, making it a hazardous zone.

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  • 6. 

    The mild injury which occurred when exposure to low temperature causes freezing of skin and other Tissue is known as :

    • A.

      Frostbite

    • B.

      Etiology

    • C.

      Frostnip

    • D.

      Hypothermia

    Correct Answer
    C. Frostnip
    Explanation
    Frostnip is the correct answer because it refers to a mild injury caused by exposure to low temperatures, where the skin and tissues freeze. Unlike frostbite, which is a more severe condition, frostnip does not result in permanent damage to the skin or tissues. It is characterized by numbness, redness, and a tingling sensation in the affected area, and can be treated by gradually warming the skin. Etiology refers to the cause or origin of a disease or condition, while hypothermia refers to a dangerously low body temperature.

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  • 7. 

    What is the storage capacity of CNG in our plant?

    • A.

      9000 L

    • B.

      12000 L

    • C.

      8000 L

    • D.

      11000 L

    Correct Answer
    B. 12000 L
    Explanation
    The correct answer is 12000 L. This indicates that the storage capacity of CNG in the plant is 12000 liters.

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  • 8. 

    Which of these are required for a chemical spill management at work place ?

    • A.

      Cotton cloth, wooden dust, Scoop, Soft and Hard Broom, Bucket

    • B.

      Chemical hand Gloves, Mask , splash proof goggles & Apron

    • C.

      Bucket sand, silk cloth

    • D.

      Cotton hand Gloves, Mask , goggles & Polyester Dress

    Correct Answer(s)
    A. Cotton cloth, wooden dust, Scoop, Soft and Hard Broom, Bucket
    B. Chemical hand Gloves, Mask , splash proof goggles & Apron
    Explanation
    The correct answer includes a combination of items that are necessary for chemical spill management at the workplace. Cotton cloth, wooden dust, scoop, soft and hard broom, and bucket are essential for cleaning up the spill and preventing further spread. Chemical hand gloves, mask, splash-proof goggles, and apron are necessary to protect the person handling the spill from coming into direct contact with the chemicals. This combination of items ensures both the safety of the worker and effective spill management.

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  • 9. 

     SRV must be installed at Propane Bullet.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The explanation for the given correct answer is that the SRV (Safety Relief Valve) must be installed at the Propane Bullet. This indicates that it is necessary to have a safety relief valve installed specifically at the Propane Bullet, which is likely a storage container or vessel for propane. Installing the SRV at this location ensures that pressure can be safely released in case of any excess buildup, preventing potential accidents or damage.

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  • 10. 

    How many SRVs are installed in each Propane Bullet at our Plant?

    • A.

      3

    • B.

      4

    • C.

      1

    • D.

      2

    Correct Answer
    A. 3
    Explanation
    There are 3 SRVs (Safety Relief Valves) installed in each Propane Bullet at our Plant.

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  • 11. 

    HAZCHEM code of Petrol is-

    • A.

      3 Y E

    • B.

      4 Y E

    • C.

      3 Y

    • D.

      2 Y E

    Correct Answer
    A. 3 Y E
    Explanation
    The HAZCHEM code of Petrol is "3 Y E" because the number "3" indicates that it is a flammable liquid, the letter "Y" indicates that it can react violently with water, and the letter "E" indicates that it poses a significant risk to the environment.

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  • 12. 

    What does letter *Y* represent in HAZCHEM code 2 Y E 

    • A.

      Whether to Evacuate or not

    • B.

      Safety precautions for firefighters

    • C.

      How to fight the fire

    • D.

      Name of the substance

    Correct Answer
    B. Safety precautions for firefighters
    Explanation
    The letter "Y" in HAZCHEM code 2 Y E represents safety precautions for firefighters. HAZCHEM codes are used to indicate the hazards associated with different substances, and the code 2 Y E specifically refers to a substance that poses a moderate hazard to health and a moderate fire hazard. The "Y" in the code indicates that specific safety precautions should be taken by firefighters when dealing with this substance to ensure their safety while extinguishing the fire.

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  • 13. 

    Which of the following gas is known as silent killer.

    • A.

      Carbon monoxide (CO)

    • B.

      Nitrogen (N2)

    • C.

      Hydrogen (H2)

    • D.

      Carbon dioxide (CO2)

    Correct Answer
    A. Carbon monoxide (CO)
    Explanation
    Carbon monoxide (CO) is known as a silent killer because it is an odorless and colorless gas that is highly toxic. It is produced from the incomplete combustion of fuels such as gasoline, wood, and coal. When inhaled, carbon monoxide binds to hemoglobin in the blood, reducing its ability to carry oxygen to the body's organs and tissues. This can lead to symptoms such as headache, dizziness, nausea, and confusion. In severe cases, carbon monoxide poisoning can be fatal. Due to its silent nature and the lack of warning signs, carbon monoxide is often referred to as a silent killer.

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  • 14. 

    Which cryogenic material is used in Pantnagar Plant ?

    • A.

      Liquid Nitrogen

    • B.

      Chlorine

    • C.

      Carbon monoxide

    • D.

      Neon

    Correct Answer
    A. Liquid Nitrogen
    Explanation
    Liquid nitrogen is used in the Pantnagar Plant.

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  • 15. 

    When storing chemicals, segregate :

    • A.

      Flammables and combustibles from oxidizers

    • B.

      Oxidizing agents from reducing agents

    • C.

      Pyrophoric compounds from flammables

    • D.

      All of the Given option

    Correct Answer
    D. All of the Given option
    Explanation
    When storing chemicals, it is important to segregate them properly to minimize the risk of accidents or reactions. Flammables and combustibles should be kept separate from oxidizers to prevent fires or explosions. Oxidizing agents should be stored separately from reducing agents to avoid potential reactions. Pyrophoric compounds, which are substances that can ignite spontaneously, should also be stored separately from flammables. Therefore, all of the given options should be followed to ensure safe storage of chemicals.

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  • 16. 

    In general if chemical falls on body, our first step should be : 

    • A.

      Rush to Emergency Room

    • B.

      Rush to Open Air

    • C.

      Rush to pour water on affected body part

    • D.

      Rush to Factory Manager

    Correct Answer
    C. Rush to pour water on affected body part
    Explanation
    When a chemical falls on the body, the first step should be to rush to pour water on the affected body part. This is because water helps to dilute and wash away the chemical, reducing its harmful effects. It can also help to prevent further absorption of the chemical into the body. Rushing to the emergency room may be necessary in severe cases or if instructed by a medical professional, but the immediate action should be to rinse the affected area with water. Rushing to open air or to the factory manager would not be the appropriate response in this situation.

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  • 17. 

    Hazardous chemicals should not be store in the original container at safe place in Home.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement is false because hazardous chemicals should never be stored in the original container at home. It is important to transfer them to proper storage containers that are specifically designed for hazardous materials. Storing hazardous chemicals in their original containers can lead to confusion, accidental ingestion, or mixing of incompatible substances. It is essential to follow proper safety protocols and guidelines when handling and storing hazardous chemicals to prevent accidents and protect the well-being of individuals and the environment.

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  • 18. 

    This alpha numeric Symbol mentioned on Domestic LPG Cylinder represents.

    • A.

      Expiry Date and Time

    • B.

      Expiry Month and Year

    • C.

      Expiry Date

    • D.

      None of the given

    Correct Answer
    B. Expiry Month and Year
    Explanation
    The alpha numeric symbol mentioned on the domestic LPG cylinder represents the expiry month and year. This symbol is used to indicate the date by which the cylinder should be used or replaced. It helps in ensuring that the cylinders are not used beyond their safe usage period, thus ensuring the safety of the users.

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  • 19. 

    Petrol or Thinner shall not be stored in plastic container due to __________.

    • A.

      Static electricity Hazard

    • B.

      Leakage Hazard

    • C.

      Fire Hazard

    • D.

      Chemical Reaction.

    Correct Answer
    A. Static electricity Hazard
    Explanation
    Petrol and thinner are highly flammable substances. When stored in plastic containers, static electricity can easily build up and create a spark, which can ignite the flammable vapors and cause a fire or explosion. Therefore, storing petrol or thinner in plastic containers poses a static electricity hazard.

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  • 20. 

    No one is allowed to keep any chemical in the water bottle or cold drink bottle in our Plant premises.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement clearly states that no one is allowed to keep any chemical in the water bottle or cold drink bottle in the Plant premises. Therefore, the correct answer is true, as it aligns with the given information.

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  • 21. 

    Which odorant added in domestic LPG to detect its leakage ?

    • A.

      Ethyl Mercaptan 

    • B.

      Methyl Isocyanide

    • C.

      Carbon monoxide

    • D.

      Nitrous oxide

    Correct Answer
    A. Ethyl Mercaptan 
    Explanation
    Ethyl Mercaptan is added to domestic LPG to detect its leakage. Ethyl Mercaptan is a colorless gas with a strong odor, similar to that of rotten eggs. This strong odor makes it easy to detect any leaks in the LPG system, as even a small amount of leakage can be easily detected by the smell of Ethyl Mercaptan. This is important for safety reasons, as LPG is highly flammable and any leakage can potentially lead to a fire or explosion.

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  • 22. 

    Handling of a compressed gas cylinder from storage to the work area must be done by using a:

    • A.

      Sling to drag the cylinder

    • B.

      Hand Truck

    • C.

      Crane

    • D.

      Pickup Truck 

    Correct Answer
    B. Hand Truck
    Explanation
    A hand truck is the appropriate tool for handling a compressed gas cylinder from storage to the work area. A hand truck is designed to safely transport heavy objects and has a platform or support to securely hold the cylinder. It also has wheels and handles, making it easy to maneuver the cylinder without dragging it or causing damage. Using a sling to drag the cylinder can be dangerous and may result in accidents or injuries. Cranes and pickup trucks are not suitable for transporting compressed gas cylinders as they lack the necessary stability and support.

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  • 23. 

    Personnel, including rescue workers, should not enter areas where the oxygen concentration is below------------------% unless provided with a SCBA or air-line respirator

    Correct Answer
    19.5
    Explanation
    The correct answer is 19.5 because oxygen concentration below this level can be hazardous to personnel, including rescue workers. In such areas, the oxygen levels are insufficient to support normal breathing and can lead to asphyxiation. Therefore, it is crucial for individuals to use a SCBA (Self-Contained Breathing Apparatus) or air-line respirator to ensure they have a sufficient supply of oxygen while working in these environments.

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  • 24. 

    Which of the chemicals that are being used in our plant is having lowest flash point.

    • A.

      Propane

    • B.

      Paint

    • C.

      Petrol

    • D.

      HSD

    Correct Answer
    A. Propane
    Explanation
    Propane has the lowest flash point among the given chemicals. Flash point refers to the minimum temperature at which a substance can ignite when exposed to an open flame or heat source. Since propane is a highly flammable gas, it has a very low flash point, making it more susceptible to ignition compared to the other chemicals listed. Paint, petrol, and HSD (high-speed diesel) have higher flash points and are therefore less likely to ignite at lower temperatures.

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