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 indicates the shape of a BH curve (Hysteresis loop) of material? Pulling power of the magnetic material Field intensity of the substance Magnetic properties of the material Reluctance of the materialRate this question: Loading... Question 1 of 37Question 2 of 37 2. Which is the diamagnetic substance? Platinum Manganese Nickel WoodRate this question: Loading... Question 2 of 37Question 3 of 37 3. 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 All the capacitors must be same manufacturer Each capacitors voltage drop must be less than its voltage rating Break down voltage of each capacitor must be sameRate this question: Loading... Question 3 of 37Question 4 of 37 4. What is the capacitance value of a capacitor that requires 0.5 coulomb to charge to 35 volt? 0.014 F 0.025 F 0.14 F 0.25 FRate this question: Loading... Question 4 of 37Question 5 of 37 5. What is the effect of the electrolytic capacitor, if open circuit fault occurs? It will not function It will become leaky It will function normally It will burst at onceRate this question: Loading... Question 5 of 37Question 6 of 37 6. Which rule is applied to find the direction of magnetic fields in a solenoid coil? Right hand palm rule Flemings right hand rule Cork screw rule Flemings left hand ruleRate this question: Loading... Question 6 of 37Question 7 of 37 7. In which device the air capacitors are used? Oscillator Radio receiver Loudspeaker TV tunerRate this question: Loading... Question 7 of 37Question 8 of 37 8. Which method of magnetization is used to make commercial purpose permanent magnets? Divided touch method Single touch method Double touch method Induction methodRate this question: Loading... Question 8 of 37Question 9 of 37 9. Which factor is determining the value of capacitance in capacitor? Area of the plates Material of the plates Shape of the plates Thickness of the platesRate this question: Loading... Question 9 of 37Question 10 of 37 10. Which material is the paramagnetic substance? Graphite Bismuth Copper Cleat wiringRate this question: Loading... Question 10 of 37Question 11 of 37 11. What is the effect on surrounding metal placed in a magnetic field? Dielectric stress Skin effect Hysteresis Eddy currentRate this question: Loading... Question 11 of 37Question 12 of 37 12. How the value of capacitance can be decreased? Increasing the plate area Increasing the resistance of the plates Using high dielectric constant material Increasing the distance between the platesRate this question: Loading... Question 12 of 37Question 13 of 37 13. What is the unit of Reluctance?Weber / metre² Weber / metre Ampere turns / metre² Ampere turns / WeberRate this question: Loading... Question 13 of 37Question 14 of 37 14. 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 14 of 37Question 15 of 37 15. What is the effect of inductance if the distance between the turns increases? Remains same Becomes zero Decreases IncreasesRate this question: Loading... Question 15 of 37Question 16 of 37 16. Which electrical quantity is directly proportional to the eddy current? Voltage Frequency Current ResistanceRate this question: Loading... Question 16 of 37Question 17 of 37 17. What is the similar term in magnetic circuit for "conductance" in electrical circuit? Permeability Reluctivity Reluctance PermeanceRate this question: Loading... Question 17 of 37Question 18 of 37 18. 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 18 of 37Question 19 of 37 19. What is the total inductance if 3 inductors (L1, L2 and L3) are connected in series?LT = L1 + L2 + L3LT = L1 x L2 x L3LT = 1÷L1 + 1÷L2 + 1÷L3LT = 1÷L1 + L2 + L3Rate this question: Loading... Question 19 of 37Question 20 of 37 20. Which type of capacitor is used for space electronics? Electrolytic-Aluminium type Ceramic disc type Electrolytic-Tantalum type Plastic film typeRate this question: Loading... Question 20 of 37Question 21 of 37 21. How can you increase the pulling strength of an electromagnet? Increase the field intensity Reduce the current in the coil Increase the B-H curve of the material Reduce the number of turns in the coilRate this question: Loading... Question 21 of 37Question 22 of 37 22. Which is the cause for changing the permeability? Magneto motive force Field intensity Flux density LengthRate this question: Loading... Question 22 of 37Question 23 of 37 23. Which property of magnet is illustrated? Induction property Poles existing property Saturation property Directive propertyRate this question: Loading... Question 23 of 37Question 24 of 37 24. Which defines the flux density is always lagging behind the magnetising force? Magnetic intensity Hysteresis Residual magnetism Magnetic inductionRate this question: Loading... Question 24 of 37Question 25 of 37 25. What is the unit of Magneto Motive Force (MMF)?Ampere / M² Ampere - turns Ampere / turns Ampere - MRate this question: Loading... Question 25 of 37Question 26 of 37 26. Calculate the total value of capacitance of series capacitor circuit. 10μfd 40μfd 4μfd 15μfdRate this question: Loading... Question 26 of 37Question 27 of 37 27. What is the unit of capacitance? Henry Mho Farad CoulombRate this question: Loading... Question 27 of 37Question 28 of 37 28. What is the part marked as 'X' in B.H curve? Magnetizing force Coercivity Saturation point Residual magnetismRate this question: Loading... Question 28 of 37Question 29 of 37 29. Which is the diamagnetic substance? Steel Water Platinum AirRate this question: Loading... Question 29 of 37Question 30 of 37 30. 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 30 of 37Question 31 of 37 31. Which is the correct expression of capacitance 'C' if the electric charge is 'Q' and the voltage is 'V'?C = Q÷V C = 1÷QV C = V÷Q C = QVRate this question: Loading... Question 31 of 37Question 32 of 37 32. Which is a paramagnetic substance? Air Water Steel GlassRate this question: Loading... Question 32 of 37Question 33 of 37 33. Calculate the total capacitance value in the circuit. 70 μF 6 μF 0.16 μF 30 μFRate this question: Loading... Question 33 of 37Question 34 of 37 34. What is the S.I unit of Flux density? Weber Weber/metre Tesla Ampere-turnsRate this question: Loading... Question 34 of 37Question 35 of 37 35. Which type of capacitors are used in RF coupling circuit? Tantalum Electrolytic Monolithic Metalized poly propyleneRate this question: Loading... Question 35 of 37Question 36 of 37 36. What is the function of dielectric insulator in capacitor? Increases the strength of capacitance Helps to hold the charge in capacitor for long period Prevents any current flow between plates Protects from short circuit between the platesRate this question: Loading... Question 36 of 37Question 37 of 37 37. What is the unit of permeance? Ampere turns/Weber Weber/Ampere turns Ampere - turns Weber/Square metreRate this question: Loading... Question 37 of 37 Loading...