Structural Pest Control Applicator Practice Exam

Which of the following is not an advantage of piston pumps?

1. Maneuverability

2. No leakage inside the pump chamber

3. Output is virtually unaffected by pressure

4. High durability

The correct answer is: Maneuverability

The choice indicating that maneuverability is not an advantage of piston pumps is grounded in the operational characteristics of these pumps. Piston pumps are typically designed for efficiency and power in delivering fluids. However, their construction and bulk can make them less maneuverable compared to other types of pumps, such as diaphragm or gear pumps, which are generally lighter and more compact, allowing for easier handling and movement in various applications. Piston pumps do indeed have significant advantages in several areas. For instance, they excel in creating high pressure, and their output remains relatively stable despite fluctuations in pressure conditions—this is particularly important in applications requiring consistent performance. Moreover, they are known for their durability due to the robust materials often used in their construction, making them suitable for a wide range of challenging environments. Additionally, while they can exhibit certain design features aimed at reducing leakage, it is not correct to claim that there is no leakage at all; rather, they are generally designed to minimize leakage more effectively than some other pump types. Understanding these distinctions helps underscore the specific efficiencies and limitations of piston pumps in practical applications.