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