In thermal-electrical analogy charge is considered analogous to
In thermal-electrical analogy charge is considered analogous to
A differentiator is usually not a part of a control system because it
A differentiator is usually not a part of a control system because it
The second derivative input signals modify which of the following ?
The second derivative input signals modify which of the following ?
The type-2 system has ________ at the origin.
The type-2 system has ________ at the origin.
Any externally introduced signal affecting the controlled output is called a
Any externally introduced signal affecting the controlled output is called a
A conditionally stable system exhibits poor stability at
A conditionally stable system exhibits poor stability at
Which of the following is the non-linearity caused by servomotor ?
Which of the following is the non-linearity caused by servomotor ?
The initial response when tne output is not equal to input is called
The initial response when tne output is not equal to input is called
In a stable control system backlash can cause which of the following ?
In a stable control system backlash can cause which of the following ?
The frequency and time domain are related through which of the following?
The frequency and time domain are related through which of the following?
Which of the following devices are commonly used as error detectors in instruments ?
Which of the following devices are commonly used as error detectors in instruments ?
In electrical pneumatic system analogy the current is considered analogous to
In electrical pneumatic system analogy the current is considered analogous to
A.C. servomotor is basically a
A.C. servomotor is basically a
an be extended to systems which are time-varying ?
an be extended to systems which are time-varying ?
From which of the following transfer function can be obtained ?
From which of the following transfer function can be obtained ?
Which of the following is an electromagnetically device ?
Which of the following is an electromagnetically device ?
Phase margin of a system is used to specify which of the following ?
Phase margin of a system is used to specify which of the following ?
On which of the following factors does the sensitivity of a closed loop system to gain changes and load disturbances depend ?
On which of the following factors does the sensitivity of a closed loop system to gain changes and load disturbances depend ?
In closed loop control system, with positive value of feedback gain the overall gain of the system will
In closed loop control system, with positive value of feedback gain the overall gain of the system will
Which of the following statements is not necessarily correct for open control system ?
Which of the following statements is not necessarily correct for open control system ?
The position and velocity errors of a type-2 system are
The position and velocity errors of a type-2 system are
Which of the following is the best method for determining the stability and transient response ?
Which of the following is the best method for determining the stability and transient response ?
A control system with excessive noise, is likely to suffer from
A control system with excessive noise, is likely to suffer from
The band width, in a feedback amplifier.
The band width, in a feedback amplifier.
The transfer function technique is considered as inadequate under which of the following conditions ?
The transfer function technique is considered as inadequate under which of the following conditions ?
Spring constant in force-voltage analogy is analogous to
Spring constant in force-voltage analogy is analogous to
In open loop system
In open loop system
Directly converts temperature into voltage.
Directly converts temperature into voltage.
Which of the following devices is used for conversion of co-ordinates ?
Which of the following devices is used for conversion of co-ordinates ?
In a system zero initial condition means that
In a system zero initial condition means that
The transient response of a system is mainly due to
The transient response of a system is mainly due to
Mass, in force-voltage analogy, is analogous to
Mass, in force-voltage analogy, is analogous to
A car is raining at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?
A car is raining at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?
The transfer function is applicable to which of the following ?
The transfer function is applicable to which of the following ?
Which of the following can be measured by LVDT?
Which of the following can be measured by LVDT?
A.C. servomotor resembles
A.C. servomotor resembles
For open control system which of the following statements is incorrect ?
For open control system which of the following statements is incorrect ?
Is the reference input minus the primary feedback.
Is the reference input minus the primary feedback.
An amplidyne can give which of the following characteristics ?
An amplidyne can give which of the following characteristics ?
A signal other than the reference input that tends to affect the value of controlled variable is known as
A signal other than the reference input that tends to affect the value of controlled variable is known as
If a step function is applied to the input of a system and the output remains below a certain level for all the time, the system is
If a step function is applied to the input of a system and the output remains below a certain level for all the time, the system is
The effect of error damping is to
The effect of error damping is to
The first order control system, which is well designed, has a
The first order control system, which is well designed, has a
The transient response, with feedback system,
The transient response, with feedback system,
Zero initial condition for a system means
Zero initial condition for a system means
technique is not applicable to nonlinear system ?
technique is not applicable to nonlinear system ?
The viscous friction co-efficient, in force-voltage analogy, is analogous to
The viscous friction co-efficient, in force-voltage analogy, is analogous to
A phase lag lead network introduces in the output
A phase lag lead network introduces in the output
The phase lag produced by transportation relays
The phase lag produced by transportation relays
A control system working under unknown random actions is called
A control system working under unknown random actions is called
In liquid level and electrical system analogy, voltage is considered analogous to
In liquid level and electrical system analogy, voltage is considered analogous to
If the gain of the critical damped system is increased it will behave as
If the gain of the critical damped system is increased it will behave as
In force-voltage analogy, velocity is analogous to
In force-voltage analogy, velocity is analogous to
Is not a final control element.
Is not a final control element.
The on-off controller is a _____ system.
The on-off controller is a _____ system.
Which of the following is the definition of proportional band of a controller ?
Which of the following is the definition of proportional band of a controller ?
In an automatic control system which of the following elements is not used ?
In an automatic control system which of the following elements is not used ?
Addition of zeros in transfer function causes which of the following?
Addition of zeros in transfer function causes which of the following?
In a control system integral error compensation _______ steady state error
In a control system integral error compensation _______ steady state error
has tendency to oscillate.
has tendency to oscillate.
Regenerative feedback implies feedback with
Regenerative feedback implies feedback with
Which of the following should be done to make an unstable system stable ?
Which of the following should be done to make an unstable system stable ?
Technique gives quick transient and stability response
Technique gives quick transient and stability response
By which of the following the control action is determined when a man walks along a path?
By which of the following the control action is determined when a man walks along a path?
Velocity error constant of a system is measured when the input to the system is unit _______ function.
Velocity error constant of a system is measured when the input to the system is unit _______ function.
By which of the following the system response can be tested better ?
By which of the following the system response can be tested better ?
With feed back _____ reduces.
With feed back _____ reduces.
Due to which of the following reasons excessive bond width in control systems should be avoided ?
Due to which of the following reasons excessive bond width in control systems should be avoided ?
In case of type-1 system steady state acceleration is
In case of type-1 system steady state acceleration is
Transfer function of a system is used to calculate which of the following ?
Transfer function of a system is used to calculate which of the following ?
Which of the following can be measured by the use of a tachogenerator ?
Which of the following can be measured by the use of a tachogenerator ?
Which of the following statements is correct for any closed loop system ?
Which of the following statements is correct for any closed loop system ?
Which of the following is the input to a controller ?
Which of the following is the input to a controller ?
A control system in which the control action is somehow dependent on the output is known as
A control system in which the control action is somehow dependent on the output is known as
An increase in gain, in most systems, leads to
An increase in gain, in most systems, leads to
Pressure error can be measured by which of the following ?
Pressure error can be measured by which of the following ?
Which of the following is exhibited by Root locus diagrams ?
Which of the following is exhibited by Root locus diagrams ?
With feedback _____ increases.
With feedback _____ increases.
The output of a feedback control system must be a function of
The output of a feedback control system must be a function of
Is an open loop control system.
Is an open loop control system.
In a system low friction coefficient facilitates
In a system low friction coefficient facilitates
Static error coefficients are used as a measure of the effectiveness of closed loop systems for specified ________ input signal.
Static error coefficients are used as a measure of the effectiveness of closed loop systems for specified ________ input signal.
In a stable control system saturation can cause which of the following ?
In a stable control system saturation can cause which of the following ?
The term backlash is associated with
The term backlash is associated with
A closed loop system is distinguished from open loop system by which of the following ?
A closed loop system is distinguished from open loop system by which of the following ?
In an open loop control system
In an open loop control system
Is a part of the human temperature control system.
Is a part of the human temperature control system.
In a control system the output of the controller is given to
In a control system the output of the controller is given to
Is a closed loop system.
Is a closed loop system.
Hydraulic torque transmission system is analog of
Hydraulic torque transmission system is analog of
A good control system has all the following features except
A good control system has all the following features except
An automatic toaster is a ______ loop control system.
An automatic toaster is a ______ loop control system.
Which of the following is an open loop control system ?
Which of the following is an open loop control system ?
As a result of introduction of negative feedback which of the following will not decrease?
As a result of introduction of negative feedback which of the following will not decrease?
Increases the steady state accuracy.
Increases the steady state accuracy.
Which of the following statements is correct for a system with gain margin close to unity or a phase margin close to zero ?
Which of the following statements is correct for a system with gain margin close to unity or a phase margin close to zero ?
In order to increase the damping of a badly underdamped system which of following compensators may be used ?
In order to increase the damping of a badly underdamped system which of following compensators may be used ?
The capacitance, in force-current analogy, is analogous to
The capacitance, in force-current analogy, is analogous to
In pneumatic control systems the control valve used as final control element converts
In pneumatic control systems the control valve used as final control element converts
When the initial conditions of a system are specified to be zero it implies that the system is
When the initial conditions of a system are specified to be zero it implies that the system is
A controller, essentially, is a
A controller, essentially, is a
Signal will become zero when the feedback signal and reference signs are equal.
Signal will become zero when the feedback signal and reference signs are equal.
The temperature, under thermal and electrical system analogy, is considered analogous to
The temperature, under thermal and electrical system analogy, is considered analogous to
