101. The range of scale values through which the controlled variable must pass in order that the final control element be moved through its entire range :
(a) throttling
(b) floating band
(c) controller band
(d) settling time
(e) proportional band.
Ans: e
102. A controller action in which there is a predetermined relation between the values of the controlled variable and the rate of motion of a final control element:
(a) floating controller action
(b) proportional-position controller action
(c) proportional-speed floating control¬ler action
(d) two-position controller action
(e) self-regulation controller action.
Ans: a
103. The controller action in which there is continuous linear relation between the position of the final control element and the value of the controlled variable :
(a) floating controller action
(b) proportional-position controller action
(c) proportionrl-speed floating controller action
(d) two-position controller action
(e) self-regulation controller action.
Ans: b
104. The stability, accuracy, and speed ofresponse of a control system are determined by analysing :
(a) its mathematical model
(b) closed-loop feedback control system
(c) steady-state response
(d) transient response
(e) steady-state and transient response.
Ans: e
105. The steady-state performance is evaluated in terms of the :
(a) accuracy with which the output is controlled for a specified input
(b) maximum overshoot
(c) rise time
(d) response time
(e) all of the above.
Ans: a
106. The transient performance, i.e. the behaviour of the output variable as the system changes, from one steady-state
condition to another, is evaluated in terms of;
(a) accuracy
(b) settling time
(c) response time
(d) peak time
(e) maximum overshoot, rise time, and response time.
Ans: e
107. The immediately apparent feature of an observed transient performance is :
(a) the existence and magnitude of the maximum overshoot
(b) the frequency of the transient oscilla-tion
(c) the response time
(d) all of the above
(e) none of the above.
Ans: d
108. Following is the property of the system which opposes a change in the output variable :
(a) load
(b) power element
(c) resistance
(d) damping
(e) all of the above.
Ans: d
109. When an automatic control system is the output variable overshoots its desired steady-state condition and a transient oscillation occurs :
(a) underdamped
(b) over damped
(c) critically damped
(d) damped
(e) without damping.
Ans: a
110. The overshoot and the settling time are maximum with :
(a) underdamped system
(b) overdamped system
(c) critically damped system
(d) damped system
(e) non damped system.
Ans: a
111. The steady state output of the system to input sinusoids of varying frequency is referred to as :
(a) frequency response of a system
(b) Nyquist plot
(c) Bode plot
(d) transient response
(e) logarithmic plot.
Ans: a
112. System function is expressed as :
(a) Response function
(b) lyccitation function
(c) (a)/(b)
(d) (b)/(a)
(e) characteristic equation.
Ans: c
113. The frequency response can be obtained analytically from the :
(a) characteristic equation
(b) transfer functions of the components
(c) polar plot
(d) Bode diagram
(e) all of the above.
Ans: b
114. The transient performance characteristics of the control are conveniently obtained from curve of the :
(a) open-loop frequency response func-tion
(b) transfer functions of system
(c) closed loop frequency response
(d) all of above
(e) none of above.
Ans: a
115. The % age of silica in water is measured by a :
(a) colorimeter
(b) photometer
(c) electro chemical equipment
(d) conductivity cell
(e) Katharometer.
Ans: a
Read More Questions:
Process Instrumentation and Control - Mechanical Engineering MCQs Part1
Process Instrumentation and Control - Mechanical Engineering MCQs Part2
(a) throttling
(b) floating band
(c) controller band
(d) settling time
(e) proportional band.
Ans: e
102. A controller action in which there is a predetermined relation between the values of the controlled variable and the rate of motion of a final control element:
(a) floating controller action
(b) proportional-position controller action
(c) proportional-speed floating control¬ler action
(d) two-position controller action
(e) self-regulation controller action.
Ans: a
103. The controller action in which there is continuous linear relation between the position of the final control element and the value of the controlled variable :
(a) floating controller action
(b) proportional-position controller action
(c) proportionrl-speed floating controller action
(d) two-position controller action
(e) self-regulation controller action.
Ans: b
104. The stability, accuracy, and speed ofresponse of a control system are determined by analysing :
(a) its mathematical model
(b) closed-loop feedback control system
(c) steady-state response
(d) transient response
(e) steady-state and transient response.
Ans: e
105. The steady-state performance is evaluated in terms of the :
(a) accuracy with which the output is controlled for a specified input
(b) maximum overshoot
(c) rise time
(d) response time
(e) all of the above.
Ans: a
106. The transient performance, i.e. the behaviour of the output variable as the system changes, from one steady-state
condition to another, is evaluated in terms of;
(a) accuracy
(b) settling time
(c) response time
(d) peak time
(e) maximum overshoot, rise time, and response time.
Ans: e
107. The immediately apparent feature of an observed transient performance is :
(a) the existence and magnitude of the maximum overshoot
(b) the frequency of the transient oscilla-tion
(c) the response time
(d) all of the above
(e) none of the above.
Ans: d
108. Following is the property of the system which opposes a change in the output variable :
(a) load
(b) power element
(c) resistance
(d) damping
(e) all of the above.
Ans: d
109. When an automatic control system is the output variable overshoots its desired steady-state condition and a transient oscillation occurs :
(a) underdamped
(b) over damped
(c) critically damped
(d) damped
(e) without damping.
Ans: a
110. The overshoot and the settling time are maximum with :
(a) underdamped system
(b) overdamped system
(c) critically damped system
(d) damped system
(e) non damped system.
Ans: a
111. The steady state output of the system to input sinusoids of varying frequency is referred to as :
(a) frequency response of a system
(b) Nyquist plot
(c) Bode plot
(d) transient response
(e) logarithmic plot.
Ans: a
112. System function is expressed as :
(a) Response function
(b) lyccitation function
(c) (a)/(b)
(d) (b)/(a)
(e) characteristic equation.
Ans: c
113. The frequency response can be obtained analytically from the :
(a) characteristic equation
(b) transfer functions of the components
(c) polar plot
(d) Bode diagram
(e) all of the above.
Ans: b
114. The transient performance characteristics of the control are conveniently obtained from curve of the :
(a) open-loop frequency response func-tion
(b) transfer functions of system
(c) closed loop frequency response
(d) all of above
(e) none of above.
Ans: a
115. The % age of silica in water is measured by a :
(a) colorimeter
(b) photometer
(c) electro chemical equipment
(d) conductivity cell
(e) Katharometer.
Ans: a
Read More Questions:
Process Instrumentation and Control - Mechanical Engineering MCQs Part1
Process Instrumentation and Control - Mechanical Engineering MCQs Part2
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