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Q Meter Question & Answers

March 7, 2023 By Wat Electrical

This article lists 50 Q Meter MCQs for engineering students. All the Q Meter Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of Q Meter.

Measuring instruments are utilized in measuring a certain quantity. To measure electrical parameters or quantities electronic instruments are preferred. Voltmeter, Ohmmeter, Multi-meter, Ammeter, and so on are the commonly preferred instruments in electronics.

Similarly, in measuring RF impedances Q meter instruments are used. It was invented by ‘William D. Loughlin' at 'Boonton Radio Corporation' in 1934. Based on the usage of systems various kinds of measuring instruments are available.

The device that measures the quality or the storage factors of a circuit at radio frequency is defined as Q Meter. The relation among stored & dissipated energies is illustrated by the parameter called QF considered to be essential in oscillatory systems.

In RF application the coils and capacitors' total efficiency can be calculated using the value of Q. However, the usage of Q Meters is prominent in laboratories because they can measure inductance, self-capacitance, effective resistances as well as bandwidth. It is also included in the RF oscillators.

1). What is utilized to measure coil & capacitor characteristics?

Hint
2). Which is the parameter of oscillatory systems?

Hint
3). What is measured using Q Meter?

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4). What is used in testing RF of coils?

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5). What is the principle of Q Meter?

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6). What are the other names of Q Meter?

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7). What are the parameters that are measured by Q Meter?


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8). Which does not affect the Q Meters accuracy?

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9). What is the inductive reactance to effective resistances of the coil is termed?

Hint
10). What is measured using Q Meter?

Hint
11). What is the formula to calculate QF?

Hint
12). What is the function of Q Meter?

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13). What does a Q Meter consist of?

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14). How will be the output in Q Meter?

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15). What will be the voltage at the capacitor for a series resonant circuit?

Hint

Q Meter MCQs for Students

16). How the QF is affected if the voltage supplied is constant?

Hint
17). How is the circuit of the RLC series bought to resonant condition?

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18). How does the QF value calculated for the RLC series circuit?

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19). What is the formula to calculate QF for the RLC circuit?

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20). What are the values fixed in the Q Meters RLC circuit?

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21). QF of the RLC series circuit is _________ to the resistance?

Hint
22). How many methods connect unknown impedances to the Q Meters testing terminal?

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23). In which connection is the unknown impedances connected to tuning circuitry in parallel?

Hint
24). Distributed coil capacitances are measured using _________?

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25). What is connected to measuring Q at a resonance series circuit?

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26). Who is the inventor of Q Meters?

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27). What is replaced with exotic devices that measure impedances?

Hint
28). How the coil-distributed capacitances are measured using Q Meters?

Hint
29). Which is used to measure coil bandwidth?

Hint
30). The values of capacitors are measurable using ________?

Hint

Q Meter MCQs for Quiz

31). How large values of capacitors measured using Q Meters?

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32). Measurement of Mica is possible using _________?

Hint
33). Q Meter is ___________?

Hint
34). What can be modified as a CW source of the signal?

Hint
35). What is measured by 260-A?

Hint
36). 260-A is the example of ___________?

Hint
37). Why work coil in Q Meters is shielded?

Hint
38). The work coil is present in __________?

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39). Why series method of substitution used in Transmission lines?

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40). What measures coil's self-capacitance?

Hint
41). Why inductance & capacitance values are compared?

Hint
42). Small capacitor values are measured using _______?

Hint
43). What is used in transmission lines?

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44). Why shunt or series method of substitution utilized in Q Meter?

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45). What measures the unknown value of impedances?

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Q Meter MCQs for Exams

46). Distributed capacitances of the coil can be measured using __________?

Hint
47). What is utilized in RF circuit testing?

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48). What is used in checking the QF of the inductor?

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49). Which is known as Quality Meter?

Hint
50). RF impedances are measured using __________?

Hint

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