Changing a control device to a degree that is proportional to the need is called _______.

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards

From $24.99Unlock all

Study for the Washington DC 1st Class Boiler Test. Prepare with comprehensive questions, each with explanations and insights. Equip yourself thoroughly for success!

Multiple Choice

Changing a control device to a degree that is proportional to the need is called _______.

Modulation is the process of varying a control output in proportion to the demand. In boiler practice, this means the actuator—such as the fuel valve or air damper—adjusts continuously rather than simply switching on or off. When heat demand rises, the control signal increases the actuator position proportionally; when demand falls, it decreases accordingly. This contrasts with basic regulation or feedback loops, which focus on maintaining a set point or correcting errors, and with damping, which aims to reduce oscillations. The essence here is a smooth, proportional adjustment to match the need.

Changing a control device to a degree that is proportional to the need is called _______.

Study for the Washington DC 1st Class Boiler Test. Prepare with comprehensive questions, each with explanations and insights. Equip yourself thoroughly for success!

Changing a control device to a degree that is proportional to the need is called _______.

Get the latest from Examzify