19 Jun 2025 Electrician 1st Sem – NSQF – Module 5 – Magnetism and Capacitors MOCK TEST by admin | posted in: nimi online test, NSQF, NSQF LEVEL 4 | 0 TRANSLATE THIS QUIZ IN YOUR LANGUAGE इस प्रश्नोत्तरी का अपनी भाषा में अनुवाद करें <<12345678910111213141516171819202122232425262728293031323334353637>> 0% Question 1 of 37 1. Which rule is applied to find the direction of magnetic fields in a solenoid coil? Cork screw rule Right hand palm rule Flemings right hand rule Flemings left hand ruleRate this question: Loading... Question 1 of 37Question 2 of 37 2. What is the effect of inductance if the distance between the turns increases? Decreases Increases Remains same Becomes zeroRate this question: Loading... Question 2 of 37Question 3 of 37 3. Calculate the total capacitance value in the circuit. 70 μF 6 μF 0.16 μF 30 μFRate this question: Loading... Question 3 of 37Question 4 of 37 4. Which electrical quantity is directly proportional to the eddy current? Resistance Voltage Current FrequencyRate this question: Loading... Question 4 of 37Question 5 of 37 5. In which device the air capacitors are used? Loudspeaker TV tuner Oscillator Radio receiverRate this question: Loading... Question 5 of 37Question 6 of 37 6. 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 6 of 37Question 7 of 37 7. What is the similar term in magnetic circuit for "conductance" in electrical circuit? Reluctivity Permeability Permeance ReluctanceRate this question: Loading... Question 7 of 37Question 8 of 37 8. What is the S.I unit of Flux density? Tesla Weber Weber/metre Ampere-turnsRate this question: Loading... Question 8 of 37Question 9 of 37 9. Which method of magnetization is used to make commercial purpose permanent magnets? Single touch method Divided touch method Induction method Double touch methodRate this question: Loading... Question 9 of 37Question 10 of 37 10. Which defines the flux density is always lagging behind the magnetising force? Magnetic induction Hysteresis Magnetic intensity Residual magnetismRate this question: Loading... Question 10 of 37Question 11 of 37 11. What will be the change in value of capacitance if the distance of the plates are decreased in the capacitor? Remains same Increases Becomes zero DecreasesRate this question: Loading... Question 11 of 37Question 12 of 37 12. What is the total inductance if 3 inductors (L1, L2 and L3) are connected in series?LT = L1 x L2 x L3LT = L1 + L2 + L3LT = 1÷L1 + 1÷L2 + 1÷L3LT = 1÷L1 + L2 + L3Rate this question: Loading... Question 12 of 37Question 13 of 37 13. Calculate the total value of capacitance of series capacitor circuit. 10μfd 40μfd 15μfd 4μfdRate this question: Loading... Question 13 of 37Question 14 of 37 14. How can you increase the pulling strength of an electromagnet? Increase the B-H curve of the material Reduce the current in the coil Reduce the number of turns in the coil Increase the field intensityRate this question: Loading... Question 14 of 37Question 15 of 37 15. What is the function of dielectric insulator in capacitor? Prevents any current flow between plates Increases the strength of capacitance Protects from short circuit between the plates Helps to hold the charge in capacitor for long periodRate this question: Loading... Question 15 of 37Question 16 of 37 16. What is the effect on surrounding metal placed in a magnetic field? Dielectric stress Hysteresis Eddy current Skin effectRate this question: Loading... Question 16 of 37Question 17 of 37 17. What is the unit of capacitance? Henry Coulomb Mho FaradRate this question: Loading... Question 17 of 37Question 18 of 37 18. Which is the correct expression of capacitance 'C' if the electric charge is 'Q' and the voltage is 'V'? C = 1÷QV C = V÷Q C = QVC = Q÷VRate this question: Loading... Question 18 of 37Question 19 of 37 19. Which material is the paramagnetic substance? Graphite Bismuth Cleat wiring CopperRate this question: Loading... Question 19 of 37Question 20 of 37 20. What precaution to be taken before connecting the different voltage rating capacitors in series? Each capacitors voltage drop must be less than its voltage rating Break down voltage of each capacitor must be same Total capacitors value must be less than the lowest value of capacitor All the capacitors must be same manufacturerRate this question: Loading... Question 20 of 37Question 21 of 37 21. Which type of capacitor is used for space electronics? Plastic film type Ceramic disc type Electrolytic-Tantalum type Electrolytic-Aluminium typeRate this question: Loading... Question 21 of 37Question 22 of 37 22. Which is the cause for changing the permeability? Field intensity Flux density Magneto motive force LengthRate this question: Loading... Question 22 of 37Question 23 of 37 23. Which property of magnet is illustrated? Directive property Poles existing property Saturation property Induction propertyRate this question: Loading... Question 23 of 37Question 24 of 37 24. Which is the diamagnetic substance? Nickel Manganese Platinum WoodRate 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 Field intensity of the substance Reluctance of the material Magnetic properties of the materialRate this question: Loading... Question 25 of 37Question 26 of 37 26. Which factor is determining the value of capacitance in capacitor? Shape of the plates Material of the plates Area of the plates Thickness of the platesRate this question: Loading... Question 26 of 37Question 27 of 37 27. What is the unit of permeance? Weber/Square metre Weber/Ampere turns Ampere turns/Weber Ampere - turnsRate this question: Loading... Question 27 of 37Question 28 of 37 28. Which factor affects the polarity of the electromagnet? Direction of current Strength of current Length of the coil Strength of the magnetic fieldRate this question: Loading... Question 28 of 37Question 29 of 37 29. What is the unit of Magneto Motive Force (MMF)?Ampere / M² Ampere - M Ampere - turns Ampere / turnsRate this question: Loading... Question 29 of 37Question 30 of 37 30. Which is a paramagnetic substance? Steel Air Glass WaterRate this question: Loading... Question 30 of 37Question 31 of 37 31. What is the capacitance value of a capacitor that requires 0.5 coulomb to charge to 35 volt? 0.14 F 0.25 F 0.014 F 0.025 FRate this question: Loading... Question 31 of 37Question 32 of 37 32. Which is the diamagnetic substance? Steel Platinum Water AirRate this question: Loading... Question 32 of 37Question 33 of 37 33. How the value of capacitance can be decreased? Increasing the distance between the plates Increasing the resistance of the plates Using high dielectric constant material Increasing the plate areaRate this question: Loading... Question 33 of 37Question 34 of 37 34. Which type of capacitors are used in RF coupling circuit? Metalized poly propylene Monolithic Electrolytic TantalumRate this question: Loading... Question 34 of 37Question 35 of 37 35. What is the part marked as 'X' in B.H curve? Magnetizing force Coercivity Saturation point Residual magnetismRate 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 not function It will burst at once It will function normallyRate this question: Loading... Question 36 of 37Question 37 of 37 37. What is the unit of Reluctance?Weber / metre² Weber / metre Ampere turns / Weber Ampere turns / metre²Rate this question: Loading... Question 37 of 37 Loading...
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