Page 138 - Toucpad robotics C11

EXERCISE

Solved Questions
SECTION A (Objective Type Questions)
QUIZ
A. Tick ( ) the correct option.
1. The “muscles” of a robot that cause movement are called:
i. Sensors ii. Actuators

iii. Controllers iv. Switches
2. A DC motor converts:
i. Electrical energy into light

ii. Mechanical energy into electrical energy
iii. Electrical energy into mechanical energy

iv. Heat into motion
3. A servo motor is best suited for:
i. Continuous rotation only ii. Precise angular movements

iii. Generating electricity iv. Long-distance communication
4. Which device is used to control speed in a DC motor?
i. Battery ii. PWM (Pulse Width Modulation)

iii. Gearbox iv. Fuse
5. An ultrasonic sensor measures:
i. Temperature ii. Distance using sound waves

iii. Light intensity iv. Voltage
6. A closed-loop control system uses:

i. Only input signal ii. Feedback signal
iii. Random output iv. None of these
7. An example of an open-loop system is:

i. Refrigerator thermostat ii. Automatic washing machine timer
iii. Cruise control in cars iv. Air conditioner with thermostat

8. The electronic ‘brain’ that processes input and controls output is:
i. Motor ii. Controller
iii. Gear iv. Battery

9. Infrared sensors detect:
i. eat signatures ii. Water levels
iii. Metal only iv. Magnetic fields

10. Which of the following is not an actuator?
i. DC motor ii. Servo motor
iii. LED light iv. Camera

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Touchpad Robotics - XI