Worksheetsauto 1 semi final quiz
Total questions: 15
Worksheet time: 3mins
To minimize oscillations in turbulent flow, include:
Manual-only control
Filters and tuned derivative control
Higher proportional gain
No integral term
For variable flow demand, the best design is:
Manual valve
On-off control
Fixed-gain controller
Adaptive or self-tuning PID control
To handle sensor delay, propose:
Feedforward compensation or Smith predictor
Increase Kp drastically
Remove derivative term
Ignore delay
For viscosity changes, add:
Temperature compensation or adaptive tuning
Manual override
Higher proportional gain
Fixed integral
In two-phase flow design, include:
Flow averaging filters
Derivative reduction
Manual adjustment
Constant Kp
For rapid flow changes, use:
Fast sensors and optimized derivative gain
Slow sensors
No feedback
Only integral control
To reduce integral windup, implement:
Anti-windup algorithm
Increase Kp
Remove Kd
Delay correction
For chemical mixing flow control, design a:
On-off controller
Manual valve
Cascade control system
Single-loop control
To improve robustness to disturbances, include:
Feedforward + feedback hybrid control
Remove integral
Keep open loop
Increase Kp only
For a flow control training setup, include:
Variable-speed pump, flow transmitter, and PID controller
Fixed flow line
Manual gate valve
Simple open-loop system
Adjusting integral time primarily affects:When flow readings drift slowly, the best correction is:
A. Increase integral gain ✅
B. Decrease Kp
C. Disable derivative term
D. Recalibrate sensor
Noise response
Steady-state accuracy
Flow direction
Delay time
When flow readings drift slowly, the best correction is:
Increase integral gain
Decrease Kp
Disable derivative term
Recalibrate sensor
Frequent oscillations suggest:
Higher proportional gain
Lower Kp or more derivative action
Remove integral
Reduce feedback
Good tuning balances Kp, Ki, and Kd to:
Increase overshoot
Slow system response
Achieve both stability and responsiveness
Eliminate feedback
1. For variable flow demand, the best design is:
A. Manual valve
B. On-off control
C. Fixed-gain controller
D. Adaptive or self-tuning PID control ✅
