What is the lower explosive limit by volume for the substance?

What is the lower explosive limit by volume for the substance?

• A. 16%
• B. 25%
• C. 10%
• D. 30%

Answer: (A)

The lower explosive limit (LEL) refers to the minimum concentration of a gas or vapor in air required to support combustion. For the substance in question, a lower explosive limit of 16% by volume indicates that if the concentration of the gas is below that percentage, it is too lean to ignite. Understanding the significance of the LEL is crucial for safety in industrial applications, such as refrigeration, where flammable gases may be present. Knowing that the LEL is 16% means that air concentrations at or above this level could pose a risk of explosion, underscoring the importance of monitoring gas levels in the workplace. In comparison, higher percentages such as 25%, 10%, and 30% represent either too high or too low limits for this specific substance. In an operational context, maintaining the concentration of any flammable gas below the LEL is essential for protecting personnel and equipment from potential fire hazards.

The lower explosive limit (LEL) refers to the minimum concentration of a gas or vapor in air required to support combustion. For the substance in question, a lower explosive limit of 16% by volume indicates that if the concentration of the gas is below that percentage, it is too lean to ignite.

Understanding the significance of the LEL is crucial for safety in industrial applications, such as refrigeration, where flammable gases may be present. Knowing that the LEL is 16% means that air concentrations at or above this level could pose a risk of explosion, underscoring the importance of monitoring gas levels in the workplace.

In comparison, higher percentages such as 25%, 10%, and 30% represent either too high or too low limits for this specific substance. In an operational context, maintaining the concentration of any flammable gas below the LEL is essential for protecting personnel and equipment from potential fire hazards.