The _____ sits upright on the ground during use and is steadied by the foot of the operator.

The _____ sits upright on the ground during use and is steadied by the foot of the operator.

• A. Pump tank fire extinguisher
• B. ABC extinguisher
• C. Water mist extinguisher
• D. Wet chemical extinguisher

Answer: (A)

The key idea here is how the extinguisher is operated. A pump tank fire extinguisher uses a manual hand pump to build the pressurization needed to discharge its contents. Because you generate that pressure by pumping, the unit must be kept stable on the ground and held in place, often with the operator resting a foot on the base to prevent tipping while you pump. Its design — a sturdy, upright canister with a pump mechanism on top — is meant to be used from the ground with that steady stance. Other types in the list rely on pre-pressurized contents and are operated by simply opening the valve or pressing a trigger, without a pumping action that requires stabilizing the unit with a foot. That’s why the pump tank extinguisher is the best fit for the description.

The key idea here is how the extinguisher is operated. A pump tank fire extinguisher uses a manual hand pump to build the pressurization needed to discharge its contents. Because you generate that pressure by pumping, the unit must be kept stable on the ground and held in place, often with the operator resting a foot on the base to prevent tipping while you pump. Its design — a sturdy, upright canister with a pump mechanism on top — is meant to be used from the ground with that steady stance.

Other types in the list rely on pre-pressurized contents and are operated by simply opening the valve or pressing a trigger, without a pumping action that requires stabilizing the unit with a foot. That’s why the pump tank extinguisher is the best fit for the description.