Chemical Safety Online Quiz

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

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.

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.

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.

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.

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.

Liquid nitrogen is used in the Pantnagar Plant.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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

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

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.

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.

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.

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.