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. What is the capacitance value of a capacitor that requires 0.5 coulomb to charge to 35 volt? 0.25 F 0.025 F 0.014 F 0.14 FRate this question: Loading... Question 1 of 37Question 2 of 37 2. What is the unit of capacitance? Mho Coulomb Farad HenryRate this question: Loading... Question 2 of 37Question 3 of 37 3. Which property of magnet is illustrated? Poles existing property Directive property Induction property Saturation propertyRate this question: Loading... Question 3 of 37Question 4 of 37 4. Which material is the paramagnetic substance? Cleat wiring Bismuth Copper GraphiteRate this question: Loading... Question 4 of 37Question 5 of 37 5. 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 5 of 37Question 6 of 37 6. How can you increase the pulling strength of an electromagnet? Reduce the current in the coil Increase the field intensity Increase the B-H curve of the material Reduce the number of turns in the coilRate this question: Loading... Question 6 of 37Question 7 of 37 7. What is the unit of Magneto Motive Force (MMF)? Ampere - turns Ampere - MAmpere / M² Ampere / turnsRate this question: Loading... Question 7 of 37Question 8 of 37 8. Which is a paramagnetic substance? Glass Air Steel WaterRate this question: Loading... Question 8 of 37Question 9 of 37 9. Which electrical quantity is directly proportional to the eddy current? Frequency Voltage Resistance CurrentRate this question: Loading... Question 9 of 37Question 10 of 37 10. What is the effect on surrounding metal placed in a magnetic field? Dielectric stress Hysteresis Eddy current Skin effectRate this question: Loading... Question 10 of 37Question 11 of 37 11. Which type of capacitors are used in RF coupling circuit? Electrolytic Tantalum Monolithic Metalized poly propyleneRate this question: Loading... Question 11 of 37Question 12 of 37 12. What is the effect of the electrolytic capacitor, if open circuit fault occurs? It will function normally It will burst at once It will become leaky It will not functionRate this question: Loading... Question 12 of 37Question 13 of 37 13. Which is the diamagnetic substance? Platinum Manganese Nickel WoodRate this question: Loading... Question 13 of 37Question 14 of 37 14. What will be the change in value of capacitance if the distance of the plates are decreased in the capacitor? Remains same Becomes zero Increases DecreasesRate this question: Loading... Question 14 of 37Question 15 of 37 15. Calculate the total capacitance value in the circuit. 30 μF 70 μF 0.16 μF 6 μFRate this question: Loading... Question 15 of 37Question 16 of 37 16. Which factor affects the polarity of the electromagnet? Strength of the magnetic field Length of the coil Strength of current Direction of currentRate this question: Loading... Question 16 of 37Question 17 of 37 17. Which rule is applied to find the direction of magnetic fields in a solenoid coil? Flemings right hand rule Right hand palm rule Flemings left hand rule Cork screw ruleRate this question: Loading... Question 17 of 37Question 18 of 37 18. Calculate the total value of capacitance of series capacitor circuit. 40μfd 15μfd 4μfd 10μfdRate this question: Loading... Question 18 of 37Question 19 of 37 19. What is the function of dielectric insulator in capacitor? Increases the strength of capacitance Prevents any current flow between plates Protects from short circuit between the plates Helps to hold the charge in capacitor for long periodRate this question: Loading... Question 19 of 37Question 20 of 37 20. Which factor is determining the value of capacitance in capacitor? Shape of the plates Area of the plates Material of the plates Thickness of the platesRate this question: Loading... Question 20 of 37Question 21 of 37 21. In which device the air capacitors are used? Oscillator TV tuner Radio receiver LoudspeakerRate this question: Loading... Question 21 of 37Question 22 of 37 22. Which defines the flux density is always lagging behind the magnetising force? Magnetic intensity Magnetic induction Hysteresis Residual magnetismRate this question: Loading... Question 22 of 37Question 23 of 37 23. What is the effect of inductance if the distance between the turns increases? Remains same Decreases Increases Becomes zeroRate this question: Loading... Question 23 of 37Question 24 of 37 24. Which is the diamagnetic substance? Platinum Steel Air WaterRate this question: Loading... Question 24 of 37Question 25 of 37 25. Which type of capacitor is used for space electronics? Ceramic disc type Plastic film type Electrolytic-Tantalum type Electrolytic-Aluminium typeRate this question: Loading... Question 25 of 37Question 26 of 37 26. Which is the cause for changing the permeability? Flux density Magneto motive force Field intensity LengthRate this question: Loading... Question 26 of 37Question 27 of 37 27. What is the total inductance if 3 inductors (L1, L2 and L3) are connected in series?LT = 1÷L1 + L2 + L3LT = L1 + L2 + L3LT = L1 x L2 x L3LT = 1÷L1 + 1÷L2 + 1÷L3Rate this question: Loading... Question 27 of 37Question 28 of 37 28. Which is the correct expression of capacitance 'C' if the electric charge is 'Q' and the voltage is 'V'? C = QV C = 1÷QV C = V÷QC = Q÷VRate this question: Loading... Question 28 of 37Question 29 of 37 29. What is the part marked as 'X' in B.H curve? Saturation point Coercivity Magnetizing force Residual magnetismRate this question: Loading... Question 29 of 37Question 30 of 37 30. 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 30 of 37Question 31 of 37 31. What is the S.I unit of Flux density? Weber/metre Ampere-turns Tesla WeberRate this question: Loading... Question 31 of 37Question 32 of 37 32. What is the similar term in magnetic circuit for "conductance" in electrical circuit? Permeance Reluctance Permeability ReluctivityRate this question: Loading... Question 32 of 37Question 33 of 37 33. What is the unit of Reluctance? Ampere turns / Weber Ampere turns / metre²Weber / metre² Weber / metreRate this question: Loading... Question 33 of 37Question 34 of 37 34. What precaution to be taken before connecting the different voltage rating capacitors in series? Total capacitors value must be less than the lowest value of capacitor Each capacitors voltage drop must be less than its voltage rating Break down voltage of each capacitor must be same All the capacitors must be same manufacturerRate this question: Loading... Question 34 of 37Question 35 of 37 35. What is the unit of permeance? Weber/Ampere turns Weber/Square metre Ampere turns/Weber Ampere - turnsRate this question: Loading... Question 35 of 37Question 36 of 37 36. How the value of capacitance can be decreased? Using high dielectric constant material Increasing the resistance of the plates Increasing the plate area Increasing the distance between the platesRate this question: Loading... Question 36 of 37Question 37 of 37 37. What will happen, if the polarized electrolytic capacitor is reversely connected? No effect on the capacitor Current is reduced in the circuit Explode due to excessive heat Value of capacitance will be increasedRate this question: Loading... Question 37 of 37 Loading...