ThatQuiz Test Library Take this test now
FMIXSS PART 2
Contributed by: bil
  • 1. The output of a transducer is usually in the form of
A) heat
B) electrical signal
C) mechanical movement
D) magnetic field
  • 2. What does an LDR (Light Dependent Resistor) detect?
A) Light intensity
B) Temperature
C) Pressure
D) Sound
  • 3. What type of signal does an analog sensor produce?
A) Continuous signal
B) Pulse signal
C) Discrete signal
D) Digital signal
  • 4. Which of the following sensors can detect human motion?
A) Hall effect sensor
B) Ultrasonic sensor
C) LDR
D) PIR (Passive Infrared) sensor
  • 5. The analog-to-digital converter (ADC) in a microcontroller is used to:
A) store data
B) convert digital to analog signals
C) convert analog signals to digital form
D) increase signal amplitude
  • 6. Which of the following transducers generates its own electrical signal?
A) active transducer
B) Passive transducer
C) inductive transducer
D) secondary transducer
  • 7. Which memory stores the program code permanently in a microcontroller
A) Cache
B) RAM
C) EEPROM
D) ROM/Flash
  • 8. Which sensor is commonly used to measure distance using sound waves?
A) Ultrasonic sensor
B) PIR sensor
C) Photoresistor
D) Infrared sensor
  • 9. Produces voltage when exposed to a magnetic field.
A) Phototransistor
B) hall effect sensor
C) humidity sensor
D) loudspeaker
  • 10. Amplifies light signal for higher sensitivity.
A) loudspeaker
B) hall effect sensor
C) Phototransistor
D) humidity Sensor
  • 11. A type of sensor that measures the amount of moisture in the air
A) hall effect sensor
B) Phototransistor
C) humidity sensor
D) loudspeaker
  • 12. Which port type is used to connect sensors to a microcontroller?
A) Audio port
B) I/O port
C) HDMI
D) Power port
  • 13. An infrared sensor detects objects by measuring:
A) Reflected IR radiation
B) Magnetic field
C) Temperature
D) Sound waves
  • 14. Which of the following is NOT a feature of a microcontroller?
A) CPU
B) I/O ports
C) Memory
D) Hard disk
  • 15. A piezoelectric transducer converts
A) heat energy to mechanical energy
B) electrical energy to sound energy
C) mechanical stress to electrical voltage
D) sound energy to electrical energy
  • 16. What is a transducer?
A) A device that generates noise
B) converts one form of energy into another
C) A device that amplifies signals
D) A device that stores energy
  • 17. A device for converting electrical energy into acoustical signal energy that is radiated into a room or open air.
A) Loudspeaker
B) Sensor
C) microcontroller
D) Microphone
  • 18. A thermistor is a type of sensor that changes its resistance based on
A) Pressure
B) Temperature
C) Pressure
D) Sound
  • 19. What is a microcontroller?
A) A small computer on a single integrated circuit
B) A type of transistor
C) A device that stores energy
D) A logic gate
  • 20. The clock in a microcontroller determines:
A) processing speed
B) output voltage
C) power consumption
D) storage capacity
  • 21. The brain of a microcontroller is the:
A) RAM
B) ROM
C) I/O ports
D) CPU
Created with That Quiz — where a math practice test is always one click away.