In atmospheres containing acetone, ammonia, or benzene, which trucks may be used?

In atmospheres containing acetone, ammonia, or benzene, which trucks may be used?

• A. All power-operated trucks
• B. Only EX designated trucks
• C. Only manual trucks
• D. No trucks allowed

Answer: (B)

In environments with flammable vapors like acetone, ammonia, or benzene, you must prevent ignition sources from equipment. EX designated trucks are specifically approved for use in hazardous atmospheres—they’re designed to be explosion-proof or intrinsically safe, with sealed electrical systems and non-sparking components to avoid igniting vapors. That safety certification is what makes them the only appropriate choice here, since other trucks could create sparks, heat, or arcs that might ignite the surrounding vapors. So, the correct approach is to use only EX designated trucks in these conditions to maintain a safe work environment.

In environments with flammable vapors like acetone, ammonia, or benzene, you must prevent ignition sources from equipment. EX designated trucks are specifically approved for use in hazardous atmospheres—they’re designed to be explosion-proof or intrinsically safe, with sealed electrical systems and non-sparking components to avoid igniting vapors. That safety certification is what makes them the only appropriate choice here, since other trucks could create sparks, heat, or arcs that might ignite the surrounding vapors. So, the correct approach is to use only EX designated trucks in these conditions to maintain a safe work environment.