MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Electromagnetic Theory knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Cavity wave meters are used to measure which parameter of the wave? |
| A. | tWavelength |
| B. | tReflection factor |
| C. | tPhase |
| D. | tFrequency |
| Answer» E. | |
| 2. |
One of the applications of the cavity resonators is duplexer in RADAR systems. State true/false. |
| A. | tTrue |
| B. | tFalse |
| Answer» B. tFalse | |
| 3. |
The cavity resonators used in the reflex klystron oscillators are for |
| A. | tGenerating RF signals |
| B. | tGenerating microwave signals |
| C. | tAmplifying RF signals |
| D. | tAmplifying microwave signals |
| Answer» C. tAmplifying RF signals | |
| 4. |
The cavity resonators are used in the klystron amplifiers for |
| A. | tAmplifying RF signals |
| B. | tAmplifying microwave signals |
| C. | tAttenuating RF signals |
| D. | tAttenuating microwave signals |
| Answer» C. tAttenuating RF signals | |
| 5. |
For efficient transmission, the characteristic impedance of the transmission line has to be |
| A. | t50 ohm |
| B. | t75 ohm |
| C. | tEither 50 or 75 ohm |
| D. | tNeither 50 nor 75 ohm |
| Answer» D. tNeither 50 nor 75 ohm | |
| 6. |
Which of the following parameter cannot be calculated from the standing waves? |
| A. | tPeak voltage and peak current |
| B. | tSWR |
| C. | tReflection and transmission coefficients |
| D. | tAttenuation constant |
| Answer» E. | |
| 7. |
Which type of wave does the resonant cavity produce? |
| A. | tStanding waves |
| B. | tGuided waves |
| C. | tTransmitted waves |
| D. | tAttenuated waves |
| Answer» B. tGuided waves | |
| 8. |
The guided terminations are used to |
| A. | tIncrease reflection |
| B. | tIncrease transmission |
| C. | tEliminate reflection loss |
| D. | tEliminate attenuation |
| Answer» D. tEliminate attenuation | |
| 9. |
The source voltage of a 75ohm transmission line is given by 150V. Find the load current. |
| A. | t0.5 |
| B. | t2 |
| C. | t4 |
| D. | t1 |
| Answer» C. t4 | |