MCQOPTIONS
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MCQOPTIONS
This section includes 21 Mcqs, each offering curated multiple-choice questions to sharpen your Msp430 Microcontroller knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The relaxation oscillator circuit helps in _______ |
| A. | calculating the duration single RC transient |
| B. | setting the reference voltage |
| C. | setting the clock frequency |
| D. | calculating the conversion speed |
| Answer» B. setting the reference voltage | |
| 2. |
NAME_THE_COMPARATOR_THAT_HELPS_TO_FIND_UNKNOWN_INPUT.?$ |
| A. | Time marker generator |
| B. | Zero crossing detectors |
| C. | Phase meter |
| D. | Window detector |
| Answer» E. | |
| 3. |
THE_RELAXATION_OSCILLATOR_CIRCUIT_HELPS_IN________?$ |
| A. | calculating the duration single RC transient |
| B. | setting the reference voltage |
| C. | setting the clock frequency |
| D. | calculating the conversion speed |
| Answer» B. setting the reference voltage | |
| 4. |
Which among the following is used to increase phase angle between different voltages? |
| A. | Phase detector |
| B. | Window detector |
| C. | Zero crossing detector |
| D. | None of the mentioned |
| Answer» B. Window detector | |
| 5. |
Mention the application areas of time marker generator can be used |
| A. | Monoshots |
| B. | SCR |
| C. | Sweep voltage of CRT |
| D. | All of the mentioned |
| Answer» E. | |
| 6. |
State a method to overcome the drawback of zero crossing detectors? |
| A. | Increasing input voltage |
| B. | Use of positive feedback |
| C. | Connect a compensating network |
| D. | None of the mentioned |
| Answer» C. Connect a compensating network | |
| 7. |
Changes in Vcc changes the value of V+? |
| A. | true |
| B. | false |
| C. | cant be said |
| D. | depends on the conditions |
| Answer» B. false | |
| 8. |
What is the drawback in zero crossing detectors? |
| A. | Low frequency signal and noise at output terminal |
| B. | High frequency signal and noise at input terminal |
| C. | Low frequency signal and noise at input terminal |
| D. | High frequency signal and noise at output terminal |
| Answer» D. High frequency signal and noise at output terminal | |
| 9. |
Which bit is used for exchanging the two inputs of the comparator and invert its output to compensate? |
| A. | CAIFG |
| B. | CASHORT |
| C. | CAPD |
| D. | CAEX |
| Answer» E. | |
| 10. |
Zero crossing detectors is also called as |
| A. | Square to sine wave generator |
| B. | Sine to square wave generator |
| C. | Sine to triangular wave generator |
| D. | All of the mentioned |
| Answer» C. Sine to triangular wave generator | |
| 11. |
Setting a bit in the Port Disable register CAPD causes the circuits for the usual digital input and output buffers to be disconnected from the appropriate pin. |
| A. | true |
| B. | false |
| C. | cant be said |
| D. | depends on the conditions |
| Answer» B. false | |
| 12. |
How to keep the output voltage swing of the op-amp comparator within specific limits? |
| A. | External resistors or diodes are used |
| B. | External zeners or diodes are used |
| C. | External capacitors or diodes are used |
| D. | External inductors or diodes are used |
| Answer» C. External capacitors or diodes are used | |
| 13. |
Flag CAIFG is raised, |
| A. | at a low level triggered pulse |
| B. | at a high level triggered pulse |
| C. | at the falling and rising edge of the pulse |
| D. | at the falling or rising edge of the pulse |
| Answer» E. | |
| 14. |
How to obtain high rate of accuracy in comparator? |
| A. | Input offset |
| B. | High voltage gain |
| C. | High CMRR |
| D. | All of the mentioned |
| Answer» E. | |
| 15. |
Which of the following bits are not actually associated with the comparator module? |
| A. | CAREFx |
| B. | CLLDx |
| C. | CAON |
| D. | CAIFG |
| Answer» C. CAON | |
| 16. |
How the op-amp comparator should be choosen to get higher speed of operation? |
| A. | Large gain |
| B. | High slew rate |
| C. | Wider bandwidth |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 17. |
CAREFx bits are used for _______ |
| A. | inputting a positive reference voltage |
| B. | inputting a negative reference voltage |
| C. | selecting the internal reference voltage |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 18. |
P2CA4-P2CA0 bits are used for _______ |
| A. | giving the power supply to the comparator module |
| B. | for selecting the mode of operation of the comparator |
| C. | for connecting the non inverting inputs to the CA0-CA2 pins |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 19. |
Why clamp diodes are used in comparator? |
| A. | To reduce output offset voltage |
| B. | To increase gain of op-amp |
| C. | To reduce input offset current |
| D. | To protect op-amp from damage |
| Answer» E. | |
| 20. |
CAON bit is used to ___________ |
| A. | start a timer |
| B. | start an A/D conversion |
| C. | switch on the comparator module |
| D. | switch on the bit transmission |
| Answer» D. switch on the bit transmission | |
| 21. |
Comparator_A+ is controlled by which of the following peripheral registers? |
| A. | CACTL1 |
| B. | CACTL2 |
| C. | CACTL1 & CACTL2 |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |