1. . Which of the following is not an example of servo mechanism?
(A) Machine tool position control
(B) Power steering apparatus for an automobile
(C) Missile launchers
(D) Temperature regulator
2. . A servo control system for D.C motor is called a
(A) Series control
(B) Selsyn
(C) Shunt control
(D) Amplifying
3. . Two stator windings of AC servo motor are oriented
(A) 90 degree (mechanical) apart
(B) 90 degree (electrical) apart
(C) 180 degree (mechanical) apart
(D) 180 degree (electrical) apart
4. . A.C. servomotor resembles
(A) Two phase induction motor
(B) Three phase induction
(C) Direct current series motor
(D) Universal motor
5. . A servo motor is a typical example of
(A) Electronics system
(B) Mechanical system
(C) Computer system
(D) Mechatronics system
6. . The prime advantage of servo controlled voltage stabilizer over other voltage stabilizer is
(A) Faster voltage connection
(B) Size and weight
(C) Cost
(D) Frequency dependent
7. . A 2 phase servo motor control system uses
(A) Drag cup rotor
(B) Solid cylinder rotor
(C) Ordinary squirrel cage rotor
(D) Salient pole rotor
8. . A servo motor system primarily consists of three basic components
(A) Controlled device
(B) Output system
(C) Feedback system
(D) None of these
9. . Which of the following features does not pertain to a servo motor
(A) Nonlinear relationship between the speed and electric control signal
(B) Steady state stability
(C) Wide range of speed control
(D) None of these
10. . Ratio of the rotor reactance X to the rotor resistance R for a two-phase servo motor
(A) Is equal to that of a normal induction motor
(B) Is less than that of a normal induction motor
(C) Is greater than that of a normal induction motor
(D) None of these
11. . A servomechanism is a feedback control system required to control
(A) Servo amplifiers and drives
(B) Position
(C) Some derivative of position
(D) Either b) or c)
12. . Which of the following is an essential feature of servo-mechanism?
(A) A closed loop system
(B) A power amplifying stage
(C) Ability to control position, velocity or acceleration of the system
(D) All of the above
13. . A servomechanism with unit step input can be categorized as system
(A) Type 0
(B) Type 1
(C) Type 2
(D) Type 3
14. . DC servo motor are used in
(A) Purely AC control system
(B) Both AC & DC control system
(C) Purely DC control system
(D) None of these
15. . A servo system must have
(A) Power amplifier to amplify the error
(B) Feedback system
(C) Capacity to control position or its derivative
(D) All of these