Question Pool-1 - Restricted Grade

Sample question paper of the examination for award of
Amateur station operator's Licence - Restricted grade
compiled by Rajan VU2JXM

    Note:
    1. All questions are of multiple choice type. Correct answer is highlighred in green color
    2. This is only a MODEL question paper. This is for self evaluation purpose only.
    3. All the best. You study and revise the question papers several times to sharpen your knowledge onthe subject.
    4. Should you need any assistance, guidance, please reach me: WA 9686302959, e--Mail: exams.jxm@gmail.com.

SECTION: A: Radio Theory

Model question pool-1

Q1: Transformer works on the principle of





Q2: Capacitor is a





Q3: Resistance of insulator is





Q4: Conductance is proportional to





Q5: Power formula is





Q6: Kirchhoff's law states





Q7: Law of electromagnetism is





Q8: Bridge rectifier is





Q9: Diode used as





Q10: Oscillator works on





Q11: Common Emitter amplifier output phase is





Q12: Modulation frequency relation is





Q13: Typical IF value for AM superheterodyne receivers is





Q14: Detector output frequency





Q15: Receiver sensitivity governed by





Q16: Noise is expressed as





Q17: Most stable oscillator is





Q18: 7100KHz propagation is





Q19: Dipole length at 300MHz should be





Q20: Best VHF antenna is





Q21: A1A transmission is





Q22: Skip distance is between





Q23: TV sideband system is





Q24: BJT microwave limitation depends on





Q25: HF day reflection layer is





Q26: The colour bands of 4.7k.ohms- 5% resistor are





Q27: The doping concentrations of Emitter- Base and Collector in a NPN transistor is





Q28: For a step down transformer;the relation between the number of turn in primary (Np) and the number of turns in secondary (Ns) is





Q29: The power conversion efficiency of a full wave rectifier is





Q30: The length of dipole; reflector; and director of a Yagi antennain term of wave length are





Q31: What is the circuit that enables the radio receiver output to remains cut off when carrier is absent ?





Q32: The category of Pulse Modulation that comes under digital system is





Q33: The device that can be used as a voltage regulator is





Q34: The length of a dipole for a signal frequency of 300 Mhz is





Q35: The most suitable antenna for VHF transmission with high gain is





Q36: What is A1A transmission





Q37: The skip distance is the distance between is





Q38: The side band system adopted for television transmission is





Q39: One of the limitations of usage of BJT at micro wave frequencies is





Q40: The layer that reflects higher end frequencies in HF range during the day time is





Q41: The reactance of a capacitor increases when the frequency is





Q42: The elements in the tank circuit of a Colpitts oscillator are





Q43: The circuit that reduces ripples from the output of a rectifier is





Q44: The output of an amplifier with 10 dB gain and input of 1mW is





Q45: The transformers are rated in





Q46: Batteries are connected in parallel to get more





Q47: A super heterodyne receiver with local oscillator frequency range 3.455 to 30.455MHzis capable of receiving the input signal range is





Q48: The capability of a receiver to receive weakest possible signal is its





Q49: The bridge rectifier is





Q50: What are the effects of moving a closed wire loop through a magnetic field?





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