Feedforward Control Questions & Answers
1. The feedback control system:
a. Cannot make corrections until a measurable error exists
b. Makes a change in output which is the differentiated error
c. Is always superior to a feedforward system in operation
d. Is theoretically capable of perfect control
Answer: a
2. The feedforward control system:
a. Cannot make corrections until a measurable error exists
b. Makes a change in output that is the integrated error
c. Requires little knowledge of the process before installation
d. Is theoretically capable of perfect control
Answer: d
3. The original boiler drum level application of feedforward control, developed in 1925:
a. Is still being applied everyday
b. Was abandoned because of poor measuring techniques
c. Worked well only with the particular boiler for which it was originally designed
d. Was immediately recognized as the ultimate control system
Answer: a
4. A properly designed feedforward control system:
a. Should be applied to every process
b. Should be employed when its use can be justified economically and technologically
c. Is always easier to adjust than a feedback system
d. Will always result in more economical process operation
Answer: b
5. The most dramatic application of feedforward techniques has occurred in their application to:
a. Heat exchangers
b. Level processes
c. Flow processes
d. Distillation columns
Answer: d
Similar Articles:
- Feedforward Vs Feedback Control
- Basic Process Control System
- Control Systems Multiple Choice Questions
- Feedforward Control Principle
- What is Feedforward Control ?
- Steady-state Errors & Error Constants
- The Design Problem
- Boiler Three Element Controller Philosophy
- Feedback and Non-feedback Systems Objective Questions
- Practical Process Control System Questions & Answers – 17