In this section of Electronic Devices and Circuits.It contain Cathode Ray Oscilloscope (CRO) MCQs (Multiple Choice Questions Answers).All the MCQs (Multiple Choice Question Answers) requires in depth reading of Electronic Devices and Circuits Subject as the hardness level of MCQs have been kept to advance level.These Sets of Questions are very helpful in Preparing for various Competitive Exams and University level Exams.
Practice it now to sharpen your concept.
PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE
1. Input impedance of CRO is:
- 1 MΩ
- 1 KΩ
- 100 Ω
- 1 Ω
A. 1 MΩ
2. CRO displays:
- AC signals
- DC signals
- Both ac and dc signals
- None of the above
C. Both ac and dc signals
3. CRO uses:
- Electrostatic deflection
- Magnetic deflection
- Electro- magnetic deflection
- None of the above
A. Electrostatic deflection
4. CRO fluroscent screen uses the phosphorous isotope
- P31
- P32
- P30
- None of the above
A. P31
5. Lissajous figure is used in CRO for:
- Phase measurement
- Frequency measurement
- Amplitude measurement
- None of the above
A. Phase measurement
6. Lissajous figure at a 45 degree angle means:
- Straight line
- Circle
- Oval
- None of the above
A. Straight line
7. The difference between the spectrum analyser (SA) and CRO is:
- CRO and SA both measures time domain signal
- CRO and SA both measures frequency domain signal
- CRO measures time domain signal and SA measures frequency domain
- CRO measures frequency domain signal and SA measures time domain
C. CRO measures time domain signal and SA measures frequency domain
8. Digital storage oscilloscope is more preferable because:
- Digital display
- Storage
- Both the above
- None of the above
C. Both the above
9. Saw-tooth voltage of a CRO means:
- Only sweep time
- Sweep time + fly back time
- Only fly back time
- Fly back time + sweep time
B. Sweep time + fly back time
10. Defection sensitivity of CRO depends on:
- Deflection voltage, separation between the plates and plate length
- Only deflection voltage
- Only separation between plates
- Electron density
A. Deflection voltage, separation between the plates and plate length
