Model Question Paper – Set 2

1. What is the main function of a robot sensor?

A. Actuate movement
B. Transmit power
C. Sense the environment
D. Supply energy
Ans: C
2. Which motor provides step-wise motion?
A. DC motor
B. Stepper motor
C. Servo motor
D. Induction motor
Ans: B
3. A link in a robot is a:
A. Power source
B. Rotating element
C. Structural member
D. Control signal
Ans: C
4. Proximity sensors are used to:
A. Detect touch
B. Detect light
C. Detect nearby objects
D. Measure temperature
Ans: C
5. Which component acts as a mechanical interface between actuator and link?
A. Gear
B. Encoder
C. Controller
D. Battery
Ans: A
6. Which motor allows continuous precise positioning?
A. Stepper
B. DC
C. Servo
D. Universal
Ans: C
7. The structure of a robot is built using:
A. Software
B. Controllers
C. Mechanical components
D. Microchips
Ans: C
8. Actuators convert:
A. Electricity to data
B. Energy to motion
C. Signals to voltage
D. Light to motion
Ans: B
9. Joint types include:
A. Prismatic and revolute
B. Electrical and pneumatic
C. Fixed and sliding
 D. Magnetic and rigid
Ans: A
10. Which of the following is NOT a robotic component?
A. Gear
B. Sensor
C. Spring
D. Controller
Ans: C
11. Which concept helps in motion analysis?
A. Statics
B. Dynamics
C. Kinematics
D. Thermodynamics
Ans: C
12. Inverse kinematics is difficult because:
A. Requires torque sensors
B. Multiple solutions may exist
C. Needs power analysis
D. Involves AC circuits
Ans: B
13. Trajectory planning determines:
A. Joint forces
B. Path of end-effector
C. Heat loss
D. None of these
Ans: B
14. Which element describes manipulator velocity?
A. Jacobian matrix
B. Force matrix
C. Acceleration tensor
D. Stiffness matrix
Ans: A
15. Which describes motion with no change in joint position?
A. Dynamics
B. Statics
C. Forward kinematics
D. Control theory
Ans: B
16. The purpose of sensors in manipulators:
A. Power supply
B. Structural support
C. Data acquisition
D. None
Ans: C
17. Singularities cause:
A. Faster speed
B. Reduced torque
C. Loss of control
D. All of these
Ans: C
18. Dynamics involves:
A. Material cost
B. Gravity and inertia effects
 C. Color coding
D. Load cell design
Ans: B
19. Sensor types for joint feedback include:
A. Microphone
B. Potentiometer
C. LED
D. Diode
Ans: B
20. Control of manipulators involves:
A. Painting
B. Monitoring only
C. Regulating motion parameters
D. Polishing
Ans: C
21. Which motor is suitable for high torque at low speed?
A. Stepper
B. DC
C. Servo
D. Gear motor
Ans: D
22. Hydraulic actuators use:
A. Electric charge
B. Compressed air
C. Pressurized fluid
D. Heat
Ans: C
23. Which is a key feature of pneumatic actuators?
A. High power density
B. Clean operation
C. Electrical overload
D. High inertia
Ans: B
24. Torque depends on:
A. Force and distance
B. Speed only
C. Voltage only
D. Resistance
Ans: A
25. Power transmission by gears is:
A. Inaccurate
B. Efficient and precise
C. Always noisy
D. Limited to DC systems
Ans: B
26. Efficiency of transmission is reduced by:
A. Lubrication
B. Friction
C. Alignment
D. Tension
Ans: B
27. Belt drives are preferable for:
 A. Short distance
B. Large torque
C. Noise reduction
D. Direct current
Ans: C
28. Which control is used in servo motors?
A. Temperature
B. Speed only
C. Position
D. Volume
Ans: C
29. Gear ratio affects:
A. Color
B. Torque and speed
C. Mass
D. Time
Ans: B
30. Actuator dynamics includes:
A. Shape
B. Response time
C. Paint
D. Connector type
Ans: B
31. Structural design aims for:
A. Complexity
B. Rigidity and lightness
C. Irregular shapes
D. None
Ans: B
32. Electrical reliability means:
A. Intermittent faults
B. Consistent performance
C. Large cables
D. None
Ans: B
33. Light materials are used to:
A. Reduce cost only
B. Enhance looks
C. Improve dynamics
D. Stop flow
Ans: C
34. Material for robot arms should be:
A. Fragile
B. Lightweight and strong
C. Heavy and shiny
D. Transparent
Ans: B
35. Mechanical design avoids:
A. Redundancy
B. Overheating
C. Stress concentration
D. Actuation
Ans: C
36. Redundant components are used for:
A. Load
B. Failure tolerance
C. Vibration
D. Layout
Ans: B
37. Insulation is necessary for:
A. Joints
B. Links
C. Electrical safety
D. Motors
Ans: C
38. Mechanical joints require:
A. Articulation range
B. Sensors
C. Software
D. Paint
Ans: A
39. Safety in design includes:
A. Manual override
B. Sharp edges
C. Unshielded wires
D. Overvoltage
Ans: A
40. Controllers are selected based on:
A. Memory size
B. Load capacity and I/O
C. Color
D. Price tag
Ans: B
41. Open-loop system lacks:
A. Sensor
B. Controller
C. Feedback
D. Output
Ans: C
42. Feedback helps to:
A. Correct errors
B. Increase errors
C. Store values
D. Reduce data
Ans: A
43. Real-time systems must be:
A. Slow
B. Responsive
C. Offline
D. Inaccurate
Ans: B
44. Which is not a feedback element?
A. Sensor
B. Actuator
C. Encoder
 D. Potentiometer
Ans: B
45. PID controller improves:
A. Decoration
B. Heat control
C. System performance
D. Wiring
Ans: C
46. Controllers receive input from:
A. Power lines
B. Displays
C. Sensors
D. Gears
Ans: C
47. CAN protocol is used for:
A. Painting
B. Robot communication
C. Temperature
D. Lighting
Ans: B
48. Closed-loop is better for:
A. Manual operation
B. Monitoring only
C. Precision control
D. Display
Ans: C
49. PID tuning needs:
A. Random guesses
B. System analysis
C. Color coding
D. Shape changes
Ans: B
50. Robotics control integrates:
A. Sensors, actuators, and controllers
B. Only sensors
C. Only wires
D. Noise filters
Ans: A