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    • ( 1 ) Which is not a final control element.

    • 1) Control valve
    • 2) Potentiometer
    • 3) Electro-pneumatic converter
    • 4) Servomotor
    • Discussion in forum
      Answer : 2) Potentiometer
      Solution : Potentiometer is not a final control element.








      discussion


      Answer : 2) Potentiometer

    • ( 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
    • Discussion in forum
      Answer : 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

    • ( 3 ) Which of the following devices is used for conversion of co-ordinates ?

    • 1) Microsyn
    • 2) Selsyn
    • 3) Synchro-resolver
    • 4) Synchro-transformer
    • Discussion in forum
      Answer : 3) Synchro-resolver
      Solution : Synchro-resolver is used for conversion of co-ordinates.








      discussion


      Answer : 3) Synchro-resolver

    • ( 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
    • Discussion in forum
      Answer : 3) reduce steady state error
      Solution : The effect of error damping is to reduce steady state error.








      discussion


      Answer : 3) reduce steady state error

    • ( 5 ) Technique gives quick transient and stability response

    • 1) Root locus
    • 2) Bode
    • 3) Nyquist
    • 4) Nichols
    • Discussion in forum
      Answer : 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

    • ( 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
    • Discussion in forum
      Answer : 4) State model representatives
      Solution : State model representatives can be extended to systems which are time-varying.








      discussion


      Answer : 4) State model representatives

    • ( 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
    • Discussion in forum
      Answer : 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

    • ( 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
    • Discussion in forum
      Answer : 4) D.C. voltage
      Solution : output of a thermocouple is D.C. voltage .








      discussion


      Answer : 4) D.C. voltage

    • ( 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
    • Discussion in forum
      Answer : 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

    • ( 10 ) directly converts temperature into voltage.

    • 1) Thermocouple
    • 2) Potentiometer
    • 3) Gear train
    • 4) LVDT
    • Discussion in forum
      Answer : 1) Thermocouple
      Solution : Thermocouple directly converts temperature into voltage.








      discussion


      Answer : 1) Thermocouple





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