Electrician 1st Sem – NSQF – Module 5 – Magnetism and Capacitors MOCK TEST July 2, 2025June 19, 2025 by admin TRANSLATE THIS QUIZ IN YOUR LANGUAGE इस प्रश्नोत्तरी का अपनी भाषा में अनुवाद करें <<12345678910111213141516171819202122232425262728293031323334353637>> 0% Question 1 of 37 1. Which is a paramagnetic substance? Glass Air Water SteelRate this question: Loading... Question 1 of 37Question 2 of 37 2. What will happen, if the polarized electrolytic capacitor is reversely connected? Value of capacitance will be increased Current is reduced in the circuit No effect on the capacitor Explode due to excessive heatRate this question: Loading... Question 2 of 37Question 3 of 37 3. In which device the air capacitors are used? Oscillator TV tuner Radio receiver LoudspeakerRate this question: Loading... Question 3 of 37Question 4 of 37 4. What is the function of dielectric insulator in capacitor? Increases the strength of capacitance Protects from short circuit between the plates Helps to hold the charge in capacitor for long period Prevents any current flow between platesRate this question: Loading... Question 4 of 37Question 5 of 37 5. Which defines the flux density is always lagging behind the magnetising force? Magnetic intensity Hysteresis Residual magnetism Magnetic inductionRate this question: Loading... Question 5 of 37Question 6 of 37 6. Which is the diamagnetic substance? Air Steel Water PlatinumRate this question: Loading... Question 6 of 37Question 7 of 37 7. Which type of capacitor is used for space electronics? Electrolytic-Tantalum type Plastic film type Electrolytic-Aluminium type Ceramic disc typeRate this question: Loading... Question 7 of 37Question 8 of 37 8. Which electrical quantity is directly proportional to the eddy current? Resistance Voltage Frequency CurrentRate this question: Loading... Question 8 of 37Question 9 of 37 9. Which factor is determining the value of capacitance in capacitor? Material of the plates Thickness of the plates Area of the plates Shape of the platesRate this question: Loading... Question 9 of 37Question 10 of 37 10. Which material is the paramagnetic substance? Cleat wiring Graphite Bismuth CopperRate this question: Loading... Question 10 of 37Question 11 of 37 11. Which rule is applied to find the direction of magnetic fields in a solenoid coil? Cork screw rule Flemings right hand rule Right hand palm rule Flemings left hand ruleRate this question: Loading... Question 11 of 37Question 12 of 37 12. Which is the correct expression of capacitance 'C' if the electric charge is 'Q' and the voltage is 'V'? C = V÷QC = Q÷V C = QV C = 1÷QVRate this question: Loading... Question 12 of 37Question 13 of 37 13. What is the unit of permeance? Weber/Ampere turns Ampere - turns Weber/Square metre Ampere turns/WeberRate this question: Loading... Question 13 of 37Question 14 of 37 14. What is the similar term in magnetic circuit for "conductance" in electrical circuit? Reluctivity Reluctance Permeability PermeanceRate this question: Loading... Question 14 of 37Question 15 of 37 15. What will be the change in value of capacitance if the distance of the plates are decreased in the capacitor? Remains same Decreases Increases Becomes zeroRate this question: Loading... Question 15 of 37Question 16 of 37 16. How the value of capacitance can be decreased? Using high dielectric constant material Increasing the distance between the plates Increasing the plate area Increasing the resistance of the platesRate this question: Loading... Question 16 of 37Question 17 of 37 17. How can you increase the pulling strength of an electromagnet? Reduce the current in the coil Increase the B-H curve of the material Increase the field intensity Reduce the number of turns in the coilRate this question: Loading... Question 17 of 37Question 18 of 37 18. What is the effect of inductance if the distance between the turns increases? Decreases Increases Becomes zero Remains sameRate this question: Loading... Question 18 of 37Question 19 of 37 19. Calculate the total value of capacitance of series capacitor circuit. 40μfd 10μfd 15μfd 4μfdRate this question: Loading... Question 19 of 37Question 20 of 37 20. What is the effect on surrounding metal placed in a magnetic field? Eddy current Dielectric stress Skin effect HysteresisRate this question: Loading... Question 20 of 37Question 21 of 37 21. What precaution to be taken before connecting the different voltage rating capacitors in series? All the capacitors must be same manufacturer Each capacitors voltage drop must be less than its voltage rating Total capacitors value must be less than the lowest value of capacitor Break down voltage of each capacitor must be sameRate this question: Loading... Question 21 of 37Question 22 of 37 22. What is the part marked as 'X' in B.H curve? Residual magnetism Saturation point Magnetizing force CoercivityRate this question: Loading... Question 22 of 37Question 23 of 37 23. What is the unit of Reluctance? Ampere turns / metre² Ampere turns / Weber Weber / metreWeber / metre²Rate this question: Loading... Question 23 of 37Question 24 of 37 24. Which factor affects the polarity of the electromagnet? Direction of current Strength of current Strength of the magnetic field Length of the coilRate this question: Loading... Question 24 of 37Question 25 of 37 25. What indicates the shape of a BH curve (Hysteresis loop) of material? Pulling power of the magnetic material Magnetic properties of the material Reluctance of the material Field intensity of the substanceRate this question: Loading... Question 25 of 37Question 26 of 37 26. What is the total inductance if 3 inductors (L1, L2 and L3) are connected in series?LT = 1÷L1 + L2 + L3LT = L1 + L2 + L3LT = 1÷L1 + 1÷L2 + 1÷L3LT = L1 x L2 x L3Rate this question: Loading... Question 26 of 37Question 27 of 37 27. What is the unit of capacitance? Coulomb Henry Farad MhoRate this question: Loading... Question 27 of 37Question 28 of 37 28. Which method of magnetization is used to make commercial purpose permanent magnets? Induction method Single touch method Double touch method Divided touch methodRate this question: Loading... Question 28 of 37Question 29 of 37 29. What is the unit of Magneto Motive Force (MMF)? Ampere - MAmpere / M² Ampere - turns Ampere / turnsRate this question: Loading... Question 29 of 37Question 30 of 37 30. What is the S.I unit of Flux density? Tesla Weber/metre Ampere-turns WeberRate this question: Loading... Question 30 of 37Question 31 of 37 31. Which type of capacitors are used in RF coupling circuit? Metalized poly propylene Electrolytic Monolithic TantalumRate this question: Loading... Question 31 of 37Question 32 of 37 32. Which property of magnet is illustrated? Saturation property Directive property Poles existing property Induction propertyRate this question: Loading... Question 32 of 37Question 33 of 37 33. Calculate the total capacitance value in the circuit. 6 μF 30 μF 70 μF 0.16 μFRate this question: Loading... Question 33 of 37Question 34 of 37 34. What is the capacitance value of a capacitor that requires 0.5 coulomb to charge to 35 volt? 0.014 F 0.14 F 0.25 F 0.025 FRate this question: Loading... Question 34 of 37Question 35 of 37 35. Which is the cause for changing the permeability? Flux density Length Field intensity Magneto motive forceRate this question: Loading... Question 35 of 37Question 36 of 37 36. What is the effect of the electrolytic capacitor, if open circuit fault occurs? It will become leaky It will burst at once It will not function It will function normallyRate this question: Loading... Question 36 of 37Question 37 of 37 37. Which is the diamagnetic substance? Wood Nickel Manganese PlatinumRate this question: Loading... Question 37 of 37 Loading...