# How Much Do You Know About Chemical Safety?

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| Written by Catherinehalcomb
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Catherinehalcomb
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Quizzes Created: 1509 | Total Attempts: 5,243,623
Questions: 10 | Attempts: 259

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Chemical safety is the way of decreasing the threat of exposure to chemicals in any environment or industry. To reduce accidents and hazards certain symbols are displayed in front of the heavy machines, plants, electrical control rooms, chemical products etc. These signs and signals help in identifying high- risk areas or chemical hazards. Take this quiz to test your knowledge and learn about the different chemical safety signs and hazards. Let's try out the quiz. All the best!

Questions and Answers
• 1.

### Double insulated portable electrical tools can be used without earth wire.

• A.

True

• B.

False

Correct Answer
A. True
Explanation
Double insulated portable electrical tools are designed with an extra layer of insulation to provide an additional level of protection against electric shock. This extra insulation eliminates the need for an earth wire, as it prevents any electrical current from reaching the outer metal casing of the tool. Therefore, it is safe to use these tools without an earth wire, making the statement true.

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• 2.

### The probability of the event that might occur X Severity of the event if it occurs =

• A.

Hazard

• B.

Risk

• C.

Injury

• D.

Accident

Correct Answer
B. Risk
Explanation
The equation provided suggests that the risk of an event occurring is determined by the probability of the event happening multiplied by the severity of the event if it does occur. Risk is a measure that combines the likelihood and potential impact of an event or situation. It helps in assessing and prioritizing potential hazards or dangers.

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• 3.

### Which of the following is an indirect cost of the accident

• A.

Cost of lost time mandays of injured person

• B.

Compensation paid to worker

• C.

Medical treatment cost

• D.

None of them

Correct Answer
A. Cost of lost time mandays of injured person
Explanation
The cost of lost time mandays of an injured person is considered an indirect cost of the accident. This refers to the amount of time that the injured person is unable to work and the subsequent loss of productivity for the organization. While compensation paid to the worker and medical treatment costs are direct costs associated with the accident, the cost of lost time mandays is an indirect cost as it represents the impact on overall productivity and efficiency.

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• 4.

### The limit switch is provided on which of the equipment’s

• A.

Hand valve

• B.

Conveyors

• C.

Hoists

• D.

All of them

Correct Answer
D. All of them
Explanation
The limit switch is provided on all of the mentioned equipment (hand valve, conveyors, and hoists). A limit switch is a device that is used to detect the presence or absence of an object within its operating range and then sends a signal to stop or start a particular action. It is commonly used in various equipment to ensure safety and prevent any potential damage or accidents. Therefore, it is necessary to have limit switches installed on all of the mentioned equipment to maintain proper control and operation.

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• 5.

### Name essential things you should do before working on a pipeline

• A.

Isolate it

• B.

Drain it

• C.

Identify it

• D.

Access it

• E.

All of the above

Correct Answer
E. All of the above
Explanation
Before working on a pipeline, it is essential to isolate it to prevent any flow of materials, drain it to remove any remaining substances, identify it to understand its purpose and potential hazards, and finally, access it to safely carry out the necessary tasks. Therefore, all of the given options are correct and should be done before working on a pipeline.

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• 6.

### Carbon tetrachloride is a safe cleaning fluid

• A.

True

• B.

False

Correct Answer
B. False
Explanation
Carbon tetrachloride is not a safe cleaning fluid. It is a highly toxic chemical that can cause serious health issues if inhaled, ingested, or absorbed through the skin. Prolonged exposure to carbon tetrachloride can damage the liver, kidneys, and nervous system. It is also a known carcinogen. Therefore, it is important to handle carbon tetrachloride with extreme caution and use it only in controlled environments with proper safety measures.

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• 7.

### The PEL (8 Hrs) for phenol is 2 ppm and is followed by a skin designation. What does this mean?

• A.

A potential exposure route is via mouth

• B.

A potential inhalation route is via skin

• C.

A potential exposure route is via skin

• D.

All of them

Correct Answer
C. A potential exposure route is via skin
Explanation
The PEL (8 Hrs) for phenol is 2 ppm, which indicates the maximum allowable concentration of phenol in the air for an 8-hour workday. The fact that it is followed by a skin designation suggests that phenol can also be absorbed through the skin, meaning that there is a potential exposure route via the skin. Therefore, the correct answer is "A potential exposure route is via skin."

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• 8.

### Benzene, which is known as a carcinogen, is found in conc. up to 1% in a material in wide-scale daily use. Can you name the materials?

• A.

Toluene

• B.

MTO

• C.

Petrol

• D.

MCEE 10

Correct Answer
C. Petrol
Explanation
Petrol is the correct answer because it is a widely used material that can contain benzene in concentrations up to 1%. Benzene is a known carcinogen, meaning it has the potential to cause cancer. Therefore, it is important to be aware of the presence of benzene in petrol and take necessary precautions to minimize exposure.

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• 9.

### Bromine is regarded as a particularly dangerous chemical in the laboratory. The most important health effects that can be caused by bromine

• A.

Nervous system & skin

• B.

Nervous system & disturbances in genetic materials.

• C.

Thyroid gland & skin

• D.

All of THEM

Correct Answer
B. Nervous system & disturbances in genetic materials.
Explanation
Bromine is considered a dangerous chemical in the laboratory because it can cause significant health effects. The most important health effects associated with bromine exposure are disturbances in the nervous system and genetic materials. This means that bromine can have adverse effects on the functioning of the nervous system, leading to potential neurological problems. Additionally, it can also cause damage to genetic materials, which can have long-term consequences on the overall health and well-being of individuals exposed to bromine.

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• 10.

### The following symbol is used when something in your workplace is a:

• A.

Chemical Weapon

• B.

Biohazard

• C.

Toxic Substance

• D.

Radiation Danger

Correct Answer
B. Biohazard
Explanation
The symbol used when something in your workplace is a biohazard is the correct answer. This symbol is commonly recognized as a warning sign for potential exposure to biological hazards, such as viruses, bacteria, or other microorganisms that can cause harm to human health. It is important to take necessary precautions and follow proper safety protocols when dealing with biohazardous materials to prevent any potential risks or contamination.

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