Answer: Temperature, Flow

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Questions

1
The derivative control action is typically used when controlling, but rarely used when controlling.

Answer: Temperature, Flow

2
processes always require some degree of control action to achieve setpoint.

Answer: Self-regulating, Integral

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4
A bilinear transformation that converts transfer functions from continuous to sampled and vice versa is called

Answer: Tustin transformation

6
A state space representation in which each state equation is a function of only one state variable is called

Answer: decoupled system

7
A filter that passes most frequencies unaltered, but attenuates those in a specific range to very low levels is called

Answer: band stop filter

8
In a PID controller, the overshoots has increased. The derivative time constant has to be __ so as to reduce the overshoots:

Answer: Increased

9
In a PID controller, the offset has increased. The integral time constant has to be ___ so as to reduce offset:

Answer: Increased

10
Which of the following system provides excellent transient and steady state response:

Answer: Proportional + Integral + Differential action

11
The number of operational amplifiers require for designing of electronic PID controller is:

Answer: 1

12
When derivative action is included in a proportional controller, the proportional band:

Answer: Remains unchanged

13
In a proportional temperature controller, if the quantity under the heater increases the offset will:

Answer: Increase

17
Proportional band of a controller is defined as the range of:

Answer: Measured variables through which the air output varies from maximum to minimum

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