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Oscillators Question & Answers

September 1, 2021 By Wat Electrical Leave a Comment

This article lists 100 Oscillators MCQs for engineering students. All the Oscillators Questions & Answers given below includes solution and link wherever possible to the relevant topic.

Oscillators are AC signal generators that are used in laboratories for producing sine waves. The sine wave is a type of wave that is used as a test signal for many applications. Electronic oscillators are used in a wide range of applications.

The oscillators are used in laptop and smartphone processors for generating clock signals, in radio and mobile receivers the oscillators are used for generating the local carrier, and even they are used in the signal generators which are used in the lab to test the circuits.

1). How many types of oscillators are there?

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2). Which one of the following is an LC oscillator?

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3). Which one of the following is an RC oscillator?

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4). The crystal oscillator is categorized into __________ types

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5). The LC oscillators used in ________

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6). What are the advantages of crystal oscillators?

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7). In a feedback network the crystal oscillators use ________ material

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8). The frequency range of the audio frequency oscillator is _______

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9). Which one of the following oscillators is a type of sinusoidal oscillator?


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10). The frequency range of the radiofrequency oscillator is _______

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11). Which one of the following have infinite gain?

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12). Which one of the following uses positive feedback?

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13). Which one of the following is a non-sinusoidal oscillator?

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14). The frequency range of a very high-frequency oscillator is _______

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15). Which one of the following are self-generating circuits?

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16). Which one of the following gives an oscillatory signal?

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17). The frequency range of microwave oscillator is __________

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18). __________ oscillator, oscillations depends on the positive feedback

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19). Which one of the following circuits gives a low-frequency oscillator?

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20). Which one of the following operates as a source?

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21). The input signal is not required in __________

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22). Which one of the following circuits gives a high-frequency oscillator?

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23). Which one of the following oscillators was invented by Ralph Hartley?

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24). Which one of the following doesn’t require a resonant circuit?

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25). ___________ operates as a multiplier

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Oscillators Important MCQ's with Hints

26). Which one of the following has poor stability?

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27). Which one of the following oscillators has a limited tuning range?

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28). The ring oscillator is an example for _____ oscillators

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29). The frequency range of ultra-high frequency oscillator is _______

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30). Which one of the following oscillator was developed by Max Wein?

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31). The RC oscillator produces an output signal in _________ wave

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32). What is the standard form of VFO?

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33). What is the physical quantity of candela?

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34). What is the physical quantity of mole?

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35). Which one of the following is an active device in an LC transistor oscillator?

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36). The inductor energy in the LC circuit is ___________ when the capacitor is max

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37). The frequency in the LC oscillator is inversely proportional to the square root of ________

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38). How many RC sections do we use in the phase shift oscillator?

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39). __________ are the frequency-determining elements in a phase shift oscillator

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40). The frequency range of the millimeter-wave oscillator is _______

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41). Which one of the following oscillators is a fixed frequency oscillator?

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42). The frequency range of low-frequency oscillator is _______

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43). The frequency range of high-frequency oscillator is _______

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44). The impedance of a crystal series resonance is _______________

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45). The impedance of a crystal is ____________ at parallel resonance

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46). The approximate frequency range of the crystal oscillator is _____________

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47). The multivibrator oscillator also called a ___________ oscillator

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48). Which one of the following is an LC-type oscillator?

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49). Which one of the following is an RC-type oscillator?

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50). How many resonant frequencies does crystal has?

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Oscillators MCQ's for Interviews

51). Which resonant frequency in the crystal has low impedance?

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52). The Gunn oscillators used as ________

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53). The resonant frequency in Gunn oscillator is expressed as _________

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54). Based on the feedback mechanism the oscillators are categorized into ________

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55). __________ are the type of oscillators based on the output waveform

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56). The approximate frequency range of the tickler feedback oscillator is _____________

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57). __________ are the type of oscillators based on the output signal frequency

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58). Which resonant frequency in the crystal has high impedance?

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59). ____________ are the type of oscillators based on the type of frequency control we use

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60). Which oscillator uses a tuned circuit in the feedback?

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61). _____________ feedback is used in an unturned oscillator

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62). __________ are the tuned oscillators

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63). __________ are the untuned oscillators

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64). Which oscillator is controlled by power supply or current?

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65). Which oscillator is controlled by the voltage-dependent capacitance?

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66). The approximate frequency range of the Wein bridge oscillator is _____________

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67). Which one of the following oscillatosr doesn’t require inductors?

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68). The frequency of oscillation in LC oscillator is given by _________

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69). The RC oscillators operates at ___________ frequency range

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70). What are the specifications of VCO?

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71). The voltage control oscillator consists __________

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72). What are the advantages of waveform oscillators?

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73). The frequency range of the Gunn oscillator is from _______

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Read more about Gunn Diode
74). Which oscillator is used to generate the low-frequency signal?

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75). Which oscillator is used to generate the high-frequency signal?

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Oscillators MCQ's for Quiz

76). The approximate frequency range of the phase shift oscillator is _____________

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77). Which oscillator generates stable frequency?

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78). What are the applications of oscillators?

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79). Which one of the following oscillator is invented by Edwin H. Colpitts?

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80). The Colpitts oscillator generates frequency in the range of _________

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81). The voltage control oscillators have _______

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82). In which year the Wein bridge oscillator is developed?

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83). In which year Colpitts oscillator is invented?

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84). What are the advantages of the Wein bridge oscillator?

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85). How many elements does the LC oscillator consist of?

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86). How many elements does the RC oscillator consists of?

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87). The approximate frequency range of hartley’s oscillator is _____________

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88). The output of an oscillator should be __________

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89). What are the waves oscillators can produce?

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90). The Wein bridge oscillator frequency is given by ____________

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91). The Wein bridge oscillator is a type of _____________ oscillator

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92). Which feedback does the Wein bridge oscillator use?

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93). The RC elements in a Wein bridge oscillator provides _____________ feedback

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94). In radio receivers ___________ oscillators are used

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95). An ideal oscillator gain is _______

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96). The phase shift oscillator contains three stages of ___________ circuit

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97). The approximate frequency range of the Colpitts oscillator is _____________

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98). An undamped oscillations require _________

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99). The variable frequency oscillators are categorized into _________

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100). What is the standard form of DDS?

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Read more about Oscillators

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