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( 1 ) Which is not a final control element.
- 1) Control valve
- 2) Potentiometer
- 3) Electro-pneumatic converter
- 4) Servomotor
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Show Answer Report Discussion in forumAnswer : 2) Potentiometer
Solution : Potentiometer is not a final control element.
discussion
Answer : 2) Potentiometer
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( 2 ) Which of the following is the definition of proportional band of a controller ?
- 1) The range of air output as measured variable varies from maximum to minimum
- 2) The range of measured variables from set value
- 3) The range of measured variables through which the air output changes from maximum to minimum
- 4) none of these
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Show Answer Report Discussion in forumAnswer : 3) The range of measured variables through which the air output changes from maximum to minimum
Solution : The range of measured variables through which the air output changes from maximum to minimum
discussion
Answer : 3) The range of measured variables through which the air output changes from maximum to minimum
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( 3 ) Which of the following devices is used for conversion of co-ordinates ?
- 1) Microsyn
- 2) Selsyn
- 3) Synchro-resolver
- 4) Synchro-transformer
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Show Answer Report Discussion in forumAnswer : 3) Synchro-resolver
Solution : Synchro-resolver is used for conversion of co-ordinates.
discussion
Answer : 3) Synchro-resolver
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( 4 ) The effect of error damping is to
- 1) provide larger settling lime
- 2) delay the response
- 3) reduce steady state error
- 4) none of these
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Show Answer Report Discussion in forumAnswer : 3) reduce steady state error
Solution : The effect of error damping is to reduce steady state error.
discussion
Answer : 3) reduce steady state error
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( 5 ) Technique gives quick transient and stability response
- 1) Root locus
- 2) Bode
- 3) Nyquist
- 4) Nichols
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Show Answer Report Discussion in forumAnswer : 1) Root locus
Solution : The root locus technique can be used to analyze and design the effect of a loop gain upon the system's transient response and stability.
discussion
Answer : 1) Root locus
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( 6 ) can be extended to systems which are time-varying ?
- 1) Bode-Nyquist stability methods
- 2) Transfer functions
- 3) Root locus design
- 4) State model representatives
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Show Answer Report Discussion in forumAnswer : 4) State model representatives
Solution : State model representatives can be extended to systems which are time-varying.
discussion
Answer : 4) State model representatives
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( 7 ) When the initial conditions of a system are specified to be zero it implies that the system is
- 1) at rest without any energy stored in it
- 2) working normally with reference input
- 3) working normally with zero reference input
- 4) at rest but stores energy
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Show Answer Report Discussion in forumAnswer : 4) at rest but stores energy
Solution : When the initial conditions of a system are specified to be zero it implies that the system is at rest but stores energy.
discussion
Answer : 4) at rest but stores energy
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( 8 ) Which of the following is the output of a thermocouple ?
- 1) Alternating current
- 2) Direct current
- 3) A.C. voltage
- 4) D.C. voltage
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Show Answer Report Discussion in forumAnswer : 4) D.C. voltage
Solution : output of a thermocouple is D.C. voltage .
discussion
Answer : 4) D.C. voltage
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( 9 ) The transfer function technique is considered as inadequate under which of the following conditions ?
- 1) Systems having complexities and non-linearities
- 2) Systems having stability problems
- 3) Systems having multiple input disturbances
- 4) all of the above
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Show Answer Report Discussion in forumAnswer : 4) all of the above
Solution : conditions : Systems having complexities and non-linearities, Systems having stability problems and Systems having multiple input disturbances.
discussion
Answer : 4) all of the above
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( 10 ) directly converts temperature into voltage.
- 1) Thermocouple
- 2) Potentiometer
- 3) Gear train
- 4) LVDT
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Show Answer Report Discussion in forumAnswer : 1) Thermocouple
Solution : Thermocouple directly converts temperature into voltage.
discussion
Answer : 1) Thermocouple
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