Exam Question
(a) Explain open loop control system and closed loop control system with suitable examples. (8)
(b) What are the merits and demerits of the two systems? (8)
Class 4 (4th Engineer)
MET
📅 Apr 2025
Reference Answer
### (a) Open-Loop and Closed-Loop Control Systems
#### 1. Open-Loop Control System
An open-loop control system, also known as a non-feedback system, is a type of control system in which the control action from the controller is independent of the process output or 'controlled variable'. The system operates on a pre-set basis, often time-based, without any information about the actual result of its action.
**Principle of Operation:**
#### 1. Open-Loop Control System
An open-loop control system, also known as a non-feedback system, is a type of control system in which the control action from the controller is independent of the process output or 'controlled variable'. The system operates on a pre-set basis, often time-based, without any information about the actual result of its action.
**Principle of Operation:**
Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.
Prepare on Android — MeoMock on Google Play