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? Rochelle salt Tourmaline Quartz None of the above None Hint 2). What is the standard from of RFC? Radio Frequency Choke Reverse Frequency Choke Random Frequency Choke None of the above None Hint 3). The monostable blocking oscillators are categorized into _______________ types? One Two Three Four None 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? Slope Displacement Transmission None of the above None Hint 5). Which one of the following oscillators is easier to design? LC Ring Both a and b None of the above None Hint 6). The Wein bridge oscillator is a type of ______________ oscillator? RC LC Crystal None of the above None Hint 7). Which one of the following produces the signal? Oscillator Amplifier Both a and b None of the above None Hint 8). Which one of the following operates as a source? Oscillator Amplifier Both a and b None of the above None Hint 9). Which one of the following has good stability? Oscillator Amplifier Both a and b None of the above None Hint 10). How many types of triggering's are there? One Two Three Four None Hint 11). The figure shown below is a circuit diagram of ________________ oscillator? RC oscillator Shunt-fed Hartley oscillator Colpitts oscillator None of the above None Hint 12). In which one of the following VCO, high power is needed? Ring VCO LC VCO Both a and b None of the above None Hint 13). In which one of the following VCO, the phase noise is very good? Ring VCO LC VCO Both a and b None of the above None Hint 14). The frequency range of audio frequency oscillator is ________________ Hz? 20Hz 20Hz-20KHz 300Hz None of the above None Hint 15). The current consumption of crystal oscillator is around _____________ amperes? 100mA 7mA 28mA None of the above None Hint 16). What is the standard from of TCXO? Temperature Compensated Crystal Oscillator Temperature Control Crystal Oscillator Temperature Common Crystal Oscillator None of the above None Hint 17). In Hartley oscillator tank circuit ______________ inductors are used? One Two Three Four None Hint 18). What is the standard from of MCXO? Microcomputer Compensated Crystal Oscillator Micro Control Crystal Oscillator Main control Crystal Oscillator None of the above None Hint 19). The current consumption of RC ring oscillator is around _____________ amperes? 100 mA 7mA 28mA None of the above None Hint 20). The figure shown below is a circuit diagram of ________________ oscillator? RC oscillator Shunt-fed Hartley oscillator RLC circuit None of the above None Hint Hartley Oscillator MCQs for Interviews 21). The astable blocking oscillators are categorized into _______________ types? One Two Three Four None Hint 22). In which one of the following oscillators, the behaviour is less predictable? LC Ring Both a and b None of the above None Hint 23). The Hartley oscillator is a type of ______________ oscillator? Rc LC Crystal None of the above None Hint Read more about LC Oscillator 24). Which one of the following magnifies the signal? Oscillator Amplifier Both a and b None of the above None Hint 25). In which one of the following, the input signal is not required? Oscillator Amplifier Both a and b None of the above None Hint 26). In which one of the following VCO, the phase noise is very poor? Ring VCO LC VCO Both a and b None of the above None Hint 27). In which one of the following, the tuning range is very wide? Ring VCO LC VCO Both a and b None of the above None Hint 28). In which one of the following motion, the distance time graph shows a straight line? Uniform Non-uniform Both a and b None of the above None Hint 29). The figure shown below is a circuit diagram _____________ oscillator? Clapp Hartley Pierce None of the above None Hint 30). Which one of the following has the least electrical activity? Rochelle salt Tourmaline Quartz None of the above None Hint Hartley Oscillator MCQs for Exams 31). The figure shown below is a circuit diagram of ________________ oscillator? RC oscillator Hartley oscillator tank circuit RLC circuit None of the above None Hint 32). Which one of the following oscillators is difficult to design? LC Ring Both a and b None of the above None Hint 33). The behaviour is more predictable in ________________ type of oscillator? LC Ring Both a and b None of the above None Hint 34). Which one of the following oscillators uses resistance capacitance network in order to determine the frequency of oscillator? RC LC Crystal None of the above None Hint 35). Which one of the following oscillators uses piezoelectric Crystal? Phase shift Hartley Crystal None of the above None Hint 36). The figure shown below is a circuit diagram of Clapp oscillator using ____________? Op-amp Ultrasonic amplifier Transistor None of the above None Hint 37). The frequency range of radio frequency oscillator is ________________ Hz? 20Hz 20KHz-30MHz 300Hz None of the above None Hint 38). The start-up time of crystal oscillator is from 1 milli seconds to ________________ seconds? 10 micros 100 milli 20 milli None of the above None Hint Read more about Crystal Oscillator 39). In which one of the following motion, the distance time graph shows a curved line? Uniform Non-uniform Both a and b None of the above None Hint Hartley Oscillator MCQs for Quiz 40). Which one of the following is most commonly used material? Rochelle salt Tourmaline Quartz None of the above None Hint 41). Which type of amplifier is used in the below circuit diagram? Op-amp Ultrasonic amplifier RF amplifier None of the above None Hint 42). Which one of the following oscillators uses inductance and capacitance network in order to determine the frequency of oscillator? RC LC Crystal None of the above None Hint 43). The current consumption of RC relaxation oscillator is around _____________ amperes? 100 mA 7mA 28mA None of the above None Hint 44). What is the full form of VCXO? Voltage Compensated Crystal Oscillator Voltmeter Controlled Crystal Oscillator Voltmeter Crystal Oscillator None of the above None Hint 45). Which one of the following is an example for simple harmonic motion? Motion of a spring Wheels of a car Both a and b None of the above None Hint 46). The needle of sewing machine is an example for __________ motion? Oscillatory Random Both a and b None of the above None Hint 47). The game of football is an example for __________________ motion? Oscillatory Random Both a and b None of the above None Hint 48). In which case, the direction of motion changes? Uniform Non-uniform Both a and b None of the above None Hint 49). Which one of the following components is used in Hartley oscillator feedback system? Inductor Resistor Transistor None of the above None Hint 50). In Hartley oscillator tank circuit ______________ capacitors are used? One Two Three Four None Hint For More MCQs Oscillators Questions & Answers Wien Bridge Oscillator Questions & Answers Colpitts Oscillator Questions & Answers Please fill in the comment box below. Time's up
