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Hartley Oscillator Question & Answers

July 2, 2022 By WatElectronics

This article lists 50 Hartley Oscillator MCQs for Engineering Students. The Hartley Oscillator Questions & Answers below include solutions and links to the relevant topic. This is helpful for users who are preparing for their exams and interviews, or professionals who would like to brush up on the fundamentals of the Hartley Oscillator.

The Hartley oscillator is considered one of the LC oscillators. In an LC circuit, a parallel combination of capacitor and inductor is used as a feedback circuit. When we use an op-amp in inverting configuration, an op-amp introduces a phase shift of 180 degrees between input and output signals. 

The LC oscillators provide a wide range of frequencies and they are easy to tune. The advantage of a hartley oscillator is; that the frequency of this may be adjusted with a single variable capacitor. The o/p amplitude will stay constant over the range of frequency. It requires either two fixed or a tapped coil inductor and a few other components are required.

The main disadvantage is it provides poor frequency stability because of the effect of temperature, the impact of humidity, and the effect changes in the parameters of the component value of an inductor and capacitor. 

There are various applications of Hartley oscillator using op-amp and the applications are it is used as local oscillators in tv receivers or radio receivers, and it is used in the function generators for providing various waveforms of any desired frequency and it can be used in the RF source. 

1). Which one of the following has the weakest crystal structure?

Hint
2). What is the standard from of RFC?

Hint
3). The monostable blocking oscillators are categorized into _______________ types?

Hint
4). The ratio of difference in slope at the beginning and end of sweep divided by initial value of slope is known as _______________ error?

Hint
5). Which one of the following oscillators is easier to design?

Hint
6). The Wein bridge oscillator is a type of ______________ oscillator?

Hint
7). Which one of the following produces the signal?

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

Hint
9). Which one of the following has good stability?

Hint
10). How many types of triggering's are there?

Hint
11). The figure shown below is a circuit diagram of ________________ oscillator?

Colpitts Oscillator

Hint
12). In which one of the following VCO, high power is needed?

Hint
13). In which one of the following VCO, the phase noise is very good?

Hint
14). The frequency range of audio frequency oscillator is ________________ Hz?

Hint
15). The current consumption of crystal oscillator is around _____________ amperes?

Hint
16). What is the standard from of TCXO?

Hint
17). In Hartley oscillator tank circuit ______________ inductors are used?

Hint
18). What is the standard from of MCXO?

Hint
19). The current consumption of RC ring oscillator is around _____________ amperes?

Hint
20). The figure shown below is a circuit diagram of ________________ oscillator?

Shunt-Fed Hartley Oscillator

Hint

Hartley Oscillator MCQs for Interviews

21). The astable blocking oscillators are categorized into _______________ types?

Hint
22). In which one of the following oscillators, the behaviour is less predictable?

Hint
23). The Hartley oscillator is a type of ______________ oscillator?

Hint
Read more about LC Oscillator
24). Which one of the following magnifies the signal?

Hint
25). In which one of the following, the input signal is not required?

Hint
26). In which one of the following VCO, the phase noise is very poor?

Hint
27). In which one of the following, the tuning range is very wide?

Hint
28). In which one of the following motion, the distance time graph shows a straight line?

Hint
29). The figure shown below is a circuit diagram _____________ oscillator?

Pierce Oscillator

Hint
30). Which one of the following has the least electrical activity?

Hint

Hartley Oscillator MCQs for Exams

31). The figure shown below is a circuit diagram of ________________ oscillator?

Hartley Oscilator Tank Circuit

Hint
32). Which one of the following oscillators is difficult to design?

Hint
33). The behaviour is more predictable in ________________ type of oscillator?

Hint
34). Which one of the following oscillators uses resistance capacitance network in order to determine the frequency of oscillator?

Hint
35). Which one of the following oscillators uses piezoelectric Crystal?

Hint
36). The figure shown below is a circuit diagram of Clapp oscillator using ____________?

Shunt-Fed Hartley Oscillator

Hint
37). The frequency range of radio frequency oscillator is ________________ Hz?

Hint
38). The start-up time of crystal oscillator is from 1 milli seconds to ________________ seconds?

Hint
Read more about Crystal Oscillator
39). In which one of the following motion, the distance time graph shows a curved line?

Hint

Hartley Oscillator MCQs for Quiz

40). Which one of the following is most commonly used material?

Hint
41). Which type of amplifier is used in the below circuit diagram?

Hartley Oscillator Using Op-amp

Hint
42). Which one of the following oscillators uses inductance and capacitance network in order to determine the frequency of oscillator?

Hint
43). The current consumption of RC relaxation oscillator is around _____________ amperes?

Hint
44). What is the full form of VCXO?

Hint
45). Which one of the following is an example for simple harmonic motion?

Hint
46). The needle of sewing machine is an example for __________ motion?

Hint
47). The game of football is an example for __________________ motion?

Hint
48). In which case, the direction of motion changes?

Hint
49). Which one of the following components is used in Hartley oscillator feedback system?

Hint
50). In Hartley oscillator tank circuit ______________ capacitors are used?

Hint

For More MCQs

  • Oscillators Questions & Answers
  • Wien Bridge Oscillator Questions & Answers
  • Colpitts Oscillator Questions & Answers
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