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