Question # 1. In open loop system (a) the control action is independent of the output (b) the control action depends on system variables (c) the control action depends on the input signal (d) the control action depends on the size of the system Answer: (a) the control action is independent of the output Question # 2. Standard resistor is made from (a) platinum (b) maganin (c) silver (d) nichrome Answer: (b) maganin Question # 3. Which of the following is the output of a thermocouple ? (a) Alternating current (b) D.C. voltage (c) A.C. voltage (d) Direct current Answer: (b) D.C. voltage Question # 4. In a Weston frequency meter, the magnetic axes of the two fixed coils are (a) parallel (b) inclined at 60° (c) perpendicular (d) inclined at 120° Answer: (c) perpendicular Question # 5. can be extended to systems which are time-varying ? (a) Bode-Nyquist stability methods (b) Transfer functions (c) Root locus design (d) State model representatives
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