[amp_mcq option1=”momentum” option2=”velocity” option3=”displacement” option4=”mass” correct=”option3″]
Detailed SolutionThe capacitance, in force-current analogy, is analogous to
Electrical control systems
52. In thermal-electrical analogy charge is considered analogous to
[amp_mcq option1=”heat flow” option2=”reciprocal of heat flow” option3=”reciprocal of temperature” option4=”temperature E. none of the above” correct=”option3″]
Detailed SolutionIn thermal-electrical analogy charge is considered analogous to
53. Which of the following statements is not necessarily correct for open control system ?
[amp_mcq option1=”Input command is the sole factor responsible for providing the control action” option2=”Presence of non-linearities causes malfunctioning” option3=”Less expensive” option4=”Generally free from problems of non-linearities” correct=”option4″]
54. An increase in gain, in most systems, leads to
[amp_mcq option1=”smaller damping ratio” option2=”larger damping ratio” option3=”constant damping ratio” option4=”none of the above” correct=”option1″]
Detailed SolutionAn increase in gain, in most systems, leads to
55. Which of the following can be measured by the use of a tachogenerator ?
[amp_mcq option1=”Acceleration” option2=”Speed” option3=”Speed and acceleration” option4=”Displacement E. None of the above” correct=”option2″]
Detailed SolutionWhich of the following can be measured by the use of a tachogenerator ?
56. From which of the following transfer function can be obtained ?
[amp_mcq option1=”Signal flow graph” option2=”Analogous table” option3=”Output-input ratio” option4=”Standard block system E. None of the above” correct=”option1″]
Detailed SolutionFrom which of the following transfer function can be obtained ?
57.
[amp_mcq option1=”two phase induction motor” option2=”Three phase induction motor” option3=”servomotor resembles A. two phase induction motor B. Three phase induction motor C. direct current series motor” option4=”universal motor” correct=”option1″]
58. Velocity error constant of a system is measured when the input to the system is unit _______ function.
[amp_mcq option1=”parabolic” option2=”ramp” option3=”impulse” option4=”step” correct=”option4″]
59. Which of the following is the non-linearity caused by servomotor ?
[amp_mcq option1=”Static friction” option2=”Backlash” option3=”Saturation” option4=”None of the above” correct=”option3″]
Detailed SolutionWhich of the following is the non-linearity caused by servomotor ?
60. With feedback _____ increases.
[amp_mcq option1=”system stability” option2=”sensitivity” option3=”gain” option4=”effects of disturbing signals” correct=”option1″]