MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the instruments is most accurate? |
| A. | PMMC |
| B. | Moving iron |
| C. | Thermo couple |
| D. | Induction type |
| Answer» B. Moving iron | |
| 2. |
The scale of a voltmeter is uniform. Its type is _________ |
| A. | Moving Iron |
| B. | Induction |
| C. | Moving coil permanent magnet |
| D. | Moving coil dynamometer |
| Answer» D. Moving coil dynamometer | |
| 3. |
In electronic voltmeter, the range of input voltages can be extended by using _______ |
| A. | Functional switch |
| B. | Input attenuator |
| C. | Rectifier |
| D. | Balanced bridge dc amplifier |
| Answer» C. Rectifier | |
| 4. |
THE_SCALE_OF_A_VOLTMETER_IS_UNIFORM._ITS_TYPE_IS__________?$ |
| A. | Moving Iron |
| B. | Induction |
| C. | Moving coil permanent magnet |
| D. | Moving coil dynamometer |
| Answer» D. Moving coil dynamometer | |
| 5. |
Which of the instruments is most accurate?$ |
| A. | PMMC |
| B. | Moving iron |
| C. | Thermo couple |
| D. | Induction type |
| Answer» B. Moving iron | |
| 6. |
In electronic voltmeter, the range of input voltages can be extended by using ______? |
| A. | Functional switch |
| B. | Input attenuator |
| C. | Rectifier |
| D. | Balanced bridge dc amplifier |
| Answer» C. Rectifier | |
| 7. |
Electronic voltmeters can be designed to measure ____________ |
| A. | Only very small voltages |
| B. | Only very high voltages |
| C. | Both very small and very high voltages |
| D. | Neither high nor small voltages |
| Answer» D. Neither high nor small voltages | |
| 8. |
The resistance of an ideal voltmeter is __________ |
| A. | low |
| B. | infinite |
| C. | zero |
| D. | high |
| Answer» C. zero | |
| 9. |
Which of the following instruments cannot be applied for ac measurements? |
| A. | Hot wire |
| B. | PMMC |
| C. | Electrostatic |
| D. | Induction type |
| Answer» C. Electrostatic | |
| 10. |
In a general rectifier voltmeter, the meter has low sensitivity because of ___________ of the diode. |
| A. | low forward resistance |
| B. | high forward resistance |
| C. | low reverse impedance |
| D. | high reverse impedance |
| Answer» C. low reverse impedance | |
| 11. |
In reverse bias, rectifier behaves as a___________ |
| A. | Resistor |
| B. | Capacitor |
| C. | Inductor |
| D. | Amplifier |
| Answer» C. Inductor | |
| 12. |
AC voltmeter consists of_________ |
| A. | half wave rectifier |
| B. | full wave rectifier |
| C. | center tap rectifier |
| D. | bridge wave rectifier |
| Answer» E. | |
| 13. |
_________ diodes are preferred in AC rectifier voltmeter arrangements. |
| A. | Silicon |
| B. | Germanium |
| C. | Gallium |
| D. | Arsenide |
| Answer» B. Germanium | |