Electrician 1st Sem – NSQF – Module 4 – Basic Electrical Practice MOCK TEST July 2, 2025June 19, 2025 by admin TRANSLATE THIS QUIZ IN YOUR LANGUAGE इस प्रश्नोत्तरी का अपनी भाषा में अनुवाद करें <<123456789101112131415161718192021222324252627282930313233343536373839404142434445464748>> 0% Question 1 of 48 1. What is the formula for Quantity of electricity (Q)? Voltage x Current Voltage x Resistance Current x Time Current x ResistanceRate this question: Loading... Question 1 of 48Question 2 of 48 2. Which material is having negative temperature co-efficient property? Copper Mica Eureka ManganinRate this question: Loading... Question 2 of 48Question 3 of 48 3. Calculate the value of resistance by colour coding method. 23 x 104 ± 10% 25 x 10³ ± 5%22 x 10³ ± 10%36 x 104 ± 5%Rate this question: Loading... Question 3 of 48Question 4 of 48 4. Calculate the resistance value in R3 resistor. 12 Ohm 6 Ohm 4 Ohm 8 OhmRate this question: Loading... Question 4 of 48Question 5 of 48 5. Which method is used for measuring 1 Ohm to 100K Ohm range resistance? Kelvin bridge method Wheat stone bridge method Voltmeter and ammeter method Substitution methodRate this question: Loading... Question 5 of 48Question 6 of 48 6. Calculate the value of unknown resistance 'RDC ' in the Wheatstone bridge network, If PAB = 500Ω, QBC = 300Ω, SAD = 15Ω,at balanced condition. 3Ω 6Ω 12Ω 9ΩRate this question: Loading... Question 6 of 48Question 7 of 48 7. Calculate the unknown resistance "RDC" in the Wheatstone bridge circuit, if PAB=400 ohms, QBC=200 ohms and SAD=12ohms at balanced condition. 12 Ω 6 Ω 4 Ω 8 ΩRate this question: Loading... Question 7 of 48Question 8 of 48 8. What is the value of hot resistance of a bulb rated as 100W/250V? 312.50 ohm 625.00 ohm 31.25 ohm 62.50 ohmRate this question: Loading... Question 8 of 48Question 9 of 48 9. What is the change of resistance value of the conductor as its diameter is doubled? Increases to two times Decrease to half of the value Decreases to four times No change in value of resistanceRate this question: Loading... Question 9 of 48Question 10 of 48 10. What is the specific resistance value of copper conductor? 1.72 Micro ohm/m1.72 Ohm/cm³ 1.72 Micro ohm1.72 Micro ohm/cm³Rate this question: Loading... Question 10 of 48Question 11 of 48 11. Which resistor the lowest current flows in a parallel circuit having the values of 50Ω, 220Ω, 450Ω and 560Ω connected with supply? 450 Ω 50 Ω 560 Ω 220 ΩRate this question: Loading... Question 11 of 48Question 12 of 48 12. What is the purpose of the shunt resistor 'R2 ' used in series type Ohm meter circuit? To adjust the zero position of the pointer To limit the current in the circuit To prevent the excess current in the circuit To increase the value of meter resistanceRate this question: Loading... Question 12 of 48Question 13 of 48 13. Which is inversely proportional to the resistance of a conductor? Resistivity Length Area of cross section TemperatureRate this question: Loading... Question 13 of 48Question 14 of 48 14. Which type of meter is used to test the polarity of battery? Moving coil voltmeter Dynamo meter type wattmeter Moving iron ammeter Moving iron voltmeterRate this question: Loading... Question 14 of 48Question 15 of 48 15. What is the effect on opened resistor in series circuit? Total supply voltage will appear across the opened resistor No voltage will appear across the opened resistor Full circuit current will flow in opened resistor No effect in opened resistorRate this question: Loading... Question 15 of 48Question 16 of 48 16. Which one defines the change in resistance in Ohm(Ω) per degree centigrade (°C)? Laws of temperature Temperature coefficient Temperature effect Temperature constantRate this question: Loading... Question 16 of 48Question 17 of 48 17. Which type of resistor is used for Arc quenching protection in circuit breakers? Thermistors Light dependent resistor (LDR) Sensistors VaristorsRate this question: Loading... Question 17 of 48Question 18 of 48 18. What is the reading of ohmmeter across opened 'R2' resistor? Indicate zero reading Value of sum of the resistance of R1 and R3 only Total resistance value of the circuit Indicate infinite resistanceRate this question: Loading... Question 18 of 48Question 19 of 48 19. What is the change in value of resistance of the conductor, if its cross section area is doubled? Increases 2 times Decreases 2 times No change Decreases 4 timesRate this question: Loading... Question 19 of 48Question 20 of 48 20. Which law states that in closed electric circuit, the applied voltage is equal to the sum of the voltage drops? Ohm's law Laws of resistance Kirchhoff's first law Kirchhoff's second lawRate this question: Loading... Question 20 of 48Question 21 of 48 21. What is the effect of the circuit, if 'ab' points are shorted? Supply voltage will exist in each branch Same current will flow in all branches Total circuit current is equal to each branch circuit current Circuit resistance will be zeroRate this question: Loading... Question 21 of 48Question 22 of 48 22. What is the unit of conductance? Mho Ohm-m Ohm Ohm/mRate this question: Loading... Question 22 of 48Question 23 of 48 23. What is the resistance of Light Dependent Resistor (LDR), if the intensity of light is increased? Decreases Increases Becomes infinity Remains sameRate this question: Loading... Question 23 of 48Question 24 of 48 24. Calculate the voltage drop across the resistor 'R4' in the circuit. 72 V 100 V 80 V 48 VRate this question: Loading... Question 24 of 48Question 25 of 48 25. Calculate the total power of the circuit of two lamps rated as 200W/240V are connected in series across 240V supply? 50 W 400 W 200 W 100 WRate this question: Loading... Question 25 of 48Question 26 of 48 26. Calculate the value of resistance 'R2' in the parallel circuit. 2 Ω 4 Ω 8 Ω 6 ΩRate this question: Loading... Question 26 of 48Question 27 of 48 27. What is the voltage drop in resistor 'R2' in the series circuit? 10 Volt 20 Volt 5 Volt 15 VoltRate this question: Loading... Question 27 of 48Question 28 of 48 28. What is the value of resistance in an open circuit? Infinity Low Zero HighRate this question: Loading... Question 28 of 48Question 29 of 48 29. Calculate the hot resistance of 200W / 250V rated lamp. 625 Ω 31.25 Ω 62.5 Ω 312.5 ΩRate this question: Loading... Question 29 of 48Question 30 of 48 30. a.b.d.c.Rate this question: Loading... Question 30 of 48Question 31 of 48 31. What is the S.I unit of specific resistance?Micro ohm/cm² Ohm-metre Ohm/metre² Ohm/cmRate this question: Loading... Question 31 of 48Question 32 of 48 32. What is the indication of neon polarity indicator used for checking A.C. supply? Only one electrode will glow Both electrodes will be flickering One electrode will glow and another will be flickering Both electrodes will glowRate this question: Loading... Question 32 of 48Question 33 of 48 33. What is the name of the resistor? Carbon composition resistor Wire wound resistor Carbon - film resistor Metal film resistorRate this question: Loading... Question 33 of 48Question 34 of 48 34. What is the reading of the voltmeter 'V'? 0 V 18 V 9 V 6 VRate this question: Loading... Question 34 of 48Question 35 of 48 35. What is the effect of the parallel circuit with one branch opened? Current will remain same Voltage drop increase in the opened branch No current will flow in that branch Whole circuit will not functionRate this question: Loading... Question 35 of 48Question 36 of 48 36. What electrical quantities are related in Ohm's law? Current, resistance and power Current, voltage and resistivity Current, voltage and resistance Voltage, resistance and current densityRate this question: Loading... Question 36 of 48Question 37 of 48 37. How many electrons are there in the third cell of the copper atom? 13 29 18 8Rate this question: Loading... Question 37 of 48Question 38 of 48 38. Calculate the resistance value of the resistor by colour coding method. 37 x 104 Ω ± 10%26 x 10³ Ω ± 10%23 x 10³ Ω ± 5%32 x 104 Ω ± 10%Rate this question: Loading... Question 38 of 48Question 39 of 48 39. Which is the semiconductor material? Ebonite Manganin Eureka GermaniumRate this question: Loading... Question 39 of 48Question 40 of 48 40. Which formula is used to calculate the power of a DC circuit? Current x resistance Current x voltage Voltage x resistance Voltage x timeRate this question: Loading... Question 40 of 48Question 41 of 48 41. Calculate the electrical energy in unit consumed by 500W lamp for 5 hours. 1.5 unit 0.5 unit 2.5 unit 1.0 unitRate this question: Loading... Question 41 of 48Question 42 of 48 42. What is the value of resistance of the resistor? 3300 ± 10% Ohm 330000 ± 10% Ohm 33000 ± 5 % Ohm 330 ± 5% OhmRate this question: Loading... Question 42 of 48Question 43 of 48 43. Which electrical quantity affects the heat generated in a conductor? Square of the resistance Voltage Current passed through it Square of the currentRate this question: Loading... Question 43 of 48Question 44 of 48 44. What is the name of the resistor if its resistance value increase with increase in temperature? Thermistors Sensistors Light Dependent Resistor (LDR) VaristorsRate this question: Loading... Question 44 of 48Question 45 of 48 45. Which is the application of series circuit? Voltmeter connection Multiplier resistor of a voltmeter Lighting circuits in home Shunt resistor in ammeterRate this question: Loading... Question 45 of 48Question 46 of 48 46. Why the ohmmeter is graduated with non-linear scale?\ Current is inversely proportional to resistance Voltage is directly proportional to resistance Voltage is directly proportional to the square of the current Resistance is inversely proportional to the square of currentRate this question: Loading... Question 46 of 48Question 47 of 48 47. What is the unit of resistivity?ohm / cm² ohm / metre ohm / cm ohm - metreRate this question: Loading... Question 47 of 48Question 48 of 48 48. Which is the application of series circuit? Fuse in circuit Electrical lamp in homes Voltmeter connection Shunt resistor in ammeterRate this question: Loading... Question 48 of 48 Loading...
