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? Ohmmeter Ammeter Voltmeter Q Meter Hint 2). Which is the parameter of oscillatory systems? Ohmmeter Ammeter Voltmeter Q Meter Hint 3). What is measured using Q Meter? Resistance Current Quality Factor Voltage Hint 4). What is used in testing RF of coils? Ohmmeter Ammeter Voltmeter Q Meter Hint 5). What is the principle of Q Meter? Parallel Resonant Series Resonant Shunt Capacitor All Mentioned Above Hint 6). What are the other names of Q Meter? RLC Meter LCR Meter Quality Meter All Mentioned Above Hint 7). What are the parameters that are measured by Q Meter? Inductance Self-capacitance Bandwidth All Mentioned Above Hint 8). Which does not affect the Q Meters accuracy? Instrument Inductance Coil Conductance Voltmeter Conductance Shunt Inductor Hint 9). What is the inductive reactance to effective resistances of the coil is termed? Resistance Current Quality Factor Voltage Hint 10). What is measured using Q Meter? Electrical Properties of Coils Electrical Properties of Capacitors Mechanical Properties of Coils a & b Hint 11). What is the formula to calculate QF? ωL/R LR ωL ωLR Hint 12). What is the function of Q Meter? Measure Inductance Measure Capacitance Measure the Form Factor of the Inductor and Capacitor Measure the Quality Factor of the Inductor and Capacitor Hint 13). What does a Q Meter consist of? Tuneable RF Generator Detector Mixer a & b Hint 14). How will be the output in Q Meter? Low Impedance High Impedance Medium Impedance Zero Impedance Hint 15). What will be the voltage at the capacitor for a series resonant circuit? V 2 V NV QV Hint Q Meter MCQs for Students 16). How the QF is affected if the voltage supplied is constant? Q is Directly Proportional to Voltage Supplied Q Remains the Same Q is Inversely Proportional to Voltage Supplied None Hint 17). How is the circuit of the RLC series bought to resonant condition? By Varying Oscillator Frequency By Varying Temperature By Varying Capacitance Values By Varying Voltages Applied Hint 18). How does the QF value calculated for the RLC series circuit? Vc/V V/R V/Vc V*Vc Hint 19). What is the formula to calculate QF for the RLC circuit? 1/R(sqrt(L/C)) sqrt(L/C) LC R(sqrt(L/C)) Hint 20). What are the values fixed in the Q Meters RLC circuit? Inductors Capacitors Resistors a & b Hint 21). QF of the RLC series circuit is _________ to the resistance? Directly Proportional Inversely Proportional Independent Does not Depend Hint 22). How many methods connect unknown impedances to the Q Meters testing terminal? Four Three Two One Hint 23). In which connection is the unknown impedances connected to tuning circuitry in parallel? Direct Connection Indirect Connection Parallel Connection Series Connection Hint 24). Distributed coil capacitances are measured using _________? Ohmmeter Ammeter Voltmeter Q Meter Hint 25). What is connected to measuring Q at a resonance series circuit? Ohmmeter Ammeter Voltmeter Q Meter Hint 26). Who is the inventor of Q Meters? William D.Loughlin Ben Franklin Louis Phillipe Michael Faraday Hint 27). What is replaced with exotic devices that measure impedances? Ohmmeter Ammeter Voltmeter Q Meter Hint 28). How the coil-distributed capacitances are measured using Q Meters? Changing Tuning Capacitor Capacitance Not Changing Tuning Capacitor Changing Inductor Values Changing Resistor Values Hint 29). Which is used to measure coil bandwidth? Ohmmeter Ammeter Voltmeter Q Meter Hint 30). The values of capacitors are measurable using ________? Ohmmeter Ammeter Voltmeter Q Meter Hint Q Meter MCQs for Quiz 31). How large values of capacitors measured using Q Meters? Capacitor Connected in Series with Coil Capacitor Connected in Parallel with Coil Inductor Connected in Parallel with Coil Resistor Connected in Parallel with Coil Hint 32). Measurement of Mica is possible using _________? Ohmmeter Ammeter Voltmeter Q Meter Hint 33). Q Meter is ___________? Quantity Meter Quality Meter Detector Instrument Hint 34). What can be modified as a CW source of the signal? Ohmmeter Ammeter Voltmeter Q Meter Hint 35). What is measured by 260-A? QF of Capacitors QF of Inductors QF of Impedances All Mentioned Above Hint 36). 260-A is the example of ___________? Ohmmeter Ammeter Voltmeter Q Meter Hint 37). Why work coil in Q Meters is shielded? Prevents Stray Coupling Hand-capacitance Effects Prevented Allows Stray Coupling a & b Hint 38). The work coil is present in __________? Ohmmeter Ammeter Voltmeter Q Meter Hint 39). Why series method of substitution used in Transmission lines? To Measure Resistance To Measure Capacitance To Measure Inductance To Measure Impedances Hint 40). What measures coil's self-capacitance? Ohmmeter Ammeter Voltmeter Q Meter Hint 41). Why inductance & capacitance values are compared? To Measure Resistance To Measure Conduction To Measure Quality Factor To Measure Unknown Impedances Hint 42). Small capacitor values are measured using _______? Ohmmeter Ammeter Voltmeter Q Meter Hint 43). What is used in transmission lines? Ohmmeter Ammeter Voltmeter Q Meter Hint 44). Why shunt or series method of substitution utilized in Q Meter? To Measure Resistance To Measure Capacitance To Measure Inductance To Measure Unknown Impedances Hint 45). What measures the unknown value of impedances? Ohmmeter Ammeter Voltmeter Q Meter Hint Q Meter MCQs for Exams 46). Distributed capacitances of the coil can be measured using __________? Ohmmeter Ammeter Voltmeter Q Meter Hint 47). What is utilized in RF circuit testing? Ohmmeter Ammeter Voltmeter Q Meter Hint 48). What is used in checking the QF of the inductor? Ohmmeter Ammeter Voltmeter Q Meter Hint 49). Which is known as Quality Meter? Ohmmeter Ammeter Voltmeter Q Meter Hint 50). RF impedances are measured using __________? Ohmmeter Ammeter Voltmeter Q Meter Hint For More MCQs Tachometer Question & Answers Time's up
