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 unit of conductance? Ohm Mho Ohm-m Ohm/mRate this question: Loading... Question 1 of 48Question 2 of 48 2. What is the change in value of resistance of the conductor, if its cross section area is doubled? No change Increases 2 times Decreases 4 times Decreases 2 timesRate this question: Loading... Question 2 of 48Question 3 of 48 3. Calculate the resistance value in R3 resistor. 12 Ohm 4 Ohm 6 Ohm 8 OhmRate this question: Loading... Question 3 of 48Question 4 of 48 4. What is the formula for Quantity of electricity (Q)? Voltage x Resistance Current x Time Voltage x Current Current x ResistanceRate this question: Loading... Question 4 of 48Question 5 of 48 5. What is the effect of the parallel circuit with one branch opened? Current will remain same Whole circuit will not function No current will flow in that branch Voltage drop increase in the opened branchRate this question: Loading... Question 5 of 48Question 6 of 48 6. Which material is having negative temperature co-efficient property? Eureka Manganin Copper MicaRate this question: Loading... Question 6 of 48Question 7 of 48 7. What is the specific resistance value of copper conductor?1.72 Micro ohm/cm³1.72 Ohm/cm³ 1.72 Micro ohm/m 1.72 Micro ohmRate this question: Loading... Question 7 of 48Question 8 of 48 8. Which type of meter is used to test the polarity of battery? Dynamo meter type wattmeter Moving coil voltmeter Moving iron voltmeter Moving iron ammeterRate this question: Loading... Question 8 of 48Question 9 of 48 9. 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 100 W 200 WRate this question: Loading... Question 9 of 48Question 10 of 48 10. Which is inversely proportional to the resistance of a conductor? Resistivity Temperature Area of cross section LengthRate this question: Loading... Question 10 of 48Question 11 of 48 11. What is the voltage drop in resistor 'R2' in the series circuit? 15 Volt 10 Volt 5 Volt 20 VoltRate this question: Loading... Question 11 of 48Question 12 of 48 12. What is the effect on opened resistor in series circuit? No effect in opened resistor Full circuit current will flow in opened resistor Total supply voltage will appear across the opened resistor No voltage will appear across the opened resistorRate this question: Loading... Question 12 of 48Question 13 of 48 13. What is the S.I unit of specific resistance? Ohm/cm Ohm-metreMicro ohm/cm² Ohm/metre²Rate this question: Loading... Question 13 of 48Question 14 of 48 14. What is the change of resistance value of the conductor as its diameter is doubled? Decreases to four times Decrease to half of the value No change in value of resistance Increases to two timesRate this question: Loading... Question 14 of 48Question 15 of 48 15. Calculate the value of resistance by colour coding method. 22 x 10³ ± 10%36 x 104 ± 5% 25 x 10³ ± 5%23 x 104 ± 10%Rate this question: Loading... Question 15 of 48Question 16 of 48 16. What is the name of the resistor? Carbon - film resistor Wire wound resistor Metal film resistor Carbon composition resistorRate this question: Loading... Question 16 of 48Question 17 of 48 17. Which type of resistor is used for Arc quenching protection in circuit breakers? Sensistors Light dependent resistor (LDR) Thermistors 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 Indicate infinite resistance Total resistance value of the circuitRate this question: Loading... Question 18 of 48Question 19 of 48 19. Which is the application of series circuit? Electrical lamp in homes Voltmeter connection Shunt resistor in ammeter Fuse in circuitRate this question: Loading... Question 19 of 48Question 20 of 48 20. What is the unit of resistivity?ohm / cm² ohm / cm ohm - metre ohm / metreRate this question: Loading... Question 20 of 48Question 21 of 48 21. Calculate the unknown resistance "RDC" in the Wheatstone bridge circuit, if PAB=400 ohms, QBC=200 ohms and SAD=12ohms at balanced condition. 6 Ω 12 Ω 4 Ω 8 ΩRate this question: Loading... Question 21 of 48Question 22 of 48 22. What is the value of resistance in an open circuit? Low High Infinity ZeroRate this question: Loading... Question 22 of 48Question 23 of 48 23. a.b.c.d.Rate this question: Loading... Question 23 of 48Question 24 of 48 24. What is the resistance of Light Dependent Resistor (LDR), if the intensity of light is increased? Increases Remains same Becomes infinity DecreasesRate this question: Loading... Question 24 of 48Question 25 of 48 25. Calculate the resistance value of the resistor by colour coding method. 23 x 10³ Ω ± 5%32 x 104 Ω ± 10%37 x 104 Ω ± 10%26 x 10³ Ω ± 10%Rate this question: Loading... Question 25 of 48Question 26 of 48 26. Which formula is used to calculate the power of a DC circuit? Voltage x resistance Current x voltage Current x resistance Voltage x timeRate this question: Loading... Question 26 of 48Question 27 of 48 27. Why the ohmmeter is graduated with non-linear scale?\ Voltage is directly proportional to resistance Current is inversely proportional to resistance Resistance is inversely proportional to the square of current Voltage is directly proportional to the square of the currentRate this question: Loading... Question 27 of 48Question 28 of 48 28. What is the name of the resistor if its resistance value increase with increase in temperature? Varistors Thermistors Sensistors Light Dependent Resistor (LDR)Rate this question: Loading... Question 28 of 48Question 29 of 48 29. 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 prevent the excess current in the circuit To limit the current in the circuit To increase the value of meter resistanceRate this question: Loading... Question 29 of 48Question 30 of 48 30. Calculate the voltage drop across the resistor 'R4' in the circuit. 80 V 48 V 100 V 72 VRate this question: Loading... Question 30 of 48Question 31 of 48 31. Which is the application of series circuit? Shunt resistor in ammeter Voltmeter connection Lighting circuits in home Multiplier resistor of a voltmeterRate this question: Loading... Question 31 of 48Question 32 of 48 32. Calculate the electrical energy in unit consumed by 500W lamp for 5 hours. 0.5 unit 1.5 unit 2.5 unit 1.0 unitRate this question: Loading... Question 32 of 48Question 33 of 48 33. Which is the semiconductor material? Eureka Ebonite Germanium ManganinRate this question: Loading... Question 33 of 48Question 34 of 48 34. What is the indication of neon polarity indicator used for checking A.C. supply? Both electrodes will glow Both electrodes will be flickering Only one electrode will glow One electrode will glow and another will be flickeringRate this question: Loading... Question 34 of 48Question 35 of 48 35. Calculate the value of resistance 'R2' in the parallel circuit. 6 Ω 4 Ω 2 Ω 8 ΩRate this question: Loading... Question 35 of 48Question 36 of 48 36. What is the effect of the circuit, if 'ab' points are shorted? Supply voltage will exist in each branch Circuit resistance will be zero Same current will flow in all branches Total circuit current is equal to each branch circuit currentRate this question: Loading... Question 36 of 48Question 37 of 48 37. How many electrons are there in the third cell of the copper atom? 18 8 13 29Rate this question: Loading... Question 37 of 48Question 38 of 48 38. Which law states that in closed electric circuit, the applied voltage is equal to the sum of the voltage drops? Laws of resistance Ohm's law Kirchhoff's second law Kirchhoff's first lawRate this question: Loading... Question 38 of 48Question 39 of 48 39. What electrical quantities are related in Ohm's law? Current, voltage and resistance Current, resistance and power Voltage, resistance and current density Current, voltage and resistivityRate this question: Loading... Question 39 of 48Question 40 of 48 40. What is the value of resistance of the resistor? 330 ± 5% Ohm 3300 ± 10% Ohm 33000 ± 5 % Ohm 330000 ± 10% OhmRate this question: Loading... Question 40 of 48Question 41 of 48 41. Which resistor the lowest current flows in a parallel circuit having the values of 50Ω, 220Ω, 450Ω and 560Ω connected with supply? 50 Ω 450 Ω 220 Ω 560 Ω Rate this question: Loading... Question 41 of 48Question 42 of 48 42. Which one defines the change in resistance in Ohm(Ω) per degree centigrade (°C)? Temperature constant Temperature coefficient Laws of temperature Temperature effectRate this question: Loading... Question 42 of 48Question 43 of 48 43. Calculate the value of unknown resistance 'RDC ' in the Wheatstone bridge network, If PAB = 500Ω, QBC = 300Ω, SAD = 15Ω,at balanced condition. 9Ω 12Ω 6Ω 3ΩRate this question: Loading... Question 43 of 48Question 44 of 48 44. Which electrical quantity affects the heat generated in a conductor? Square of the resistance Current passed through it Voltage Square of the currentRate this question: Loading... Question 44 of 48Question 45 of 48 45. What is the reading of the voltmeter 'V'? 9 V 6 V 0 V 18 VRate this question: Loading... Question 45 of 48Question 46 of 48 46. What is the value of hot resistance of a bulb rated as 100W/250V? 625.00 ohm 62.50 ohm 312.50 ohm 31.25 ohmRate this question: Loading... Question 46 of 48Question 47 of 48 47. Calculate the hot resistance of 200W / 250V rated lamp. 312.5 Ω 625 Ω 62.5 Ω 31.25 ΩRate this question: Loading... Question 47 of 48Question 48 of 48 48. Which method is used for measuring 1 Ohm to 100K Ohm range resistance? Wheat stone bridge method Kelvin bridge method Voltmeter and ammeter method Substitution methodRate this question: Loading... Question 48 of 48 Loading...
