Assistant Laboratory Animal Technician (ALAT) Practice Exam

In an automated watering system, which device is used to lower water pressure for delivery to cages?

1. Pressure reducing station

2. Flow meter

3. Reservoir

4. Compressor

The correct answer is: Pressure reducing station

The correct answer is the pressure reducing station, which plays a crucial role in an automated watering system by ensuring that water pressure is lowered to appropriate levels for safe delivery to animal cages. High water pressure can cause damage to the watering system components, lead to excessive water flow that could drown or stress the animals, or result in inefficient water usage. The pressure reducing station is specifically designed to manage and regulate water pressure from the supply line, providing a steady, controlled flow that is suitable for the needs of the animals housed in the facility. By maintaining the appropriate pressure, it enhances animal welfare while ensuring the longevity and functionality of the watering system. Other choices like a flow meter, reservoir, and compressor have different purposes; a flow meter measures the rate of water flow, a reservoir stores water, and a compressor typically relates to pressurized air systems. Thus, these devices do not function to specifically lower water pressure, which is the primary function of the pressure reducing station.