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 S.I unit of specific resistance? Ohm/cm Ohm/metre² Ohm-metreMicro ohm/cm²Rate this question: Loading... Question 1 of 48Question 2 of 48 2. Which formula is used to calculate the power of a DC circuit? Current x voltage Voltage x resistance Voltage x time Current x resistanceRate this question: Loading... Question 2 of 48Question 3 of 48 3. Which resistor the lowest current flows in a parallel circuit having the values of 50Ω, 220Ω, 450Ω and 560Ω connected with supply? 220 Ω 450 Ω 50 Ω 560 Ω Rate this question: Loading... Question 3 of 48Question 4 of 48 4. Which is inversely proportional to the resistance of a conductor? Length Resistivity Temperature Area of cross sectionRate this question: Loading... Question 4 of 48Question 5 of 48 5. Which method is used for measuring 1 Ohm to 100K Ohm range resistance? Voltmeter and ammeter method Substitution method Wheat stone bridge method Kelvin bridge methodRate this question: Loading... Question 5 of 48Question 6 of 48 6. What is the change in value of resistance of the conductor, if its cross section area is doubled? No change Decreases 2 times Decreases 4 times Increases 2 timesRate this question: Loading... Question 6 of 48Question 7 of 48 7. What is the unit of resistivity? ohm - metre ohm / metre ohm / cmohm / cm²Rate this question: Loading... Question 7 of 48Question 8 of 48 8. Which is the application of series circuit? Electrical lamp in homes Voltmeter connection Shunt resistor in ammeter Fuse in circuitRate this question: Loading... Question 8 of 48Question 9 of 48 9. What is the indication of neon polarity indicator used for checking A.C. supply? Only one electrode will glow Both electrodes will be flickering Both electrodes will glow One electrode will glow and another will be flickeringRate this question: Loading... Question 9 of 48Question 10 of 48 10. Which one defines the change in resistance in Ohm(Ω) per degree centigrade (°C)? Temperature effect Temperature constant Temperature coefficient Laws of temperatureRate this question: Loading... Question 10 of 48Question 11 of 48 11. What is the resistance of Light Dependent Resistor (LDR), if the intensity of light is increased? Remains same Becomes infinity Increases DecreasesRate this question: Loading... Question 11 of 48Question 12 of 48 12. What is the voltage drop in resistor 'R2' in the series circuit? 20 Volt 5 Volt 15 Volt 10 VoltRate this question: Loading... Question 12 of 48Question 13 of 48 13. a.c.b.d.Rate this question: Loading... Question 13 of 48Question 14 of 48 14. Calculate the total power of the circuit of two lamps rated as 200W/240V are connected in series across 240V supply? 50 W 200 W 100 W 400 WRate this question: Loading... Question 14 of 48Question 15 of 48 15. Which is the application of series circuit? Lighting circuits in home Voltmeter connection Multiplier resistor of a voltmeter Shunt resistor in ammeterRate this question: Loading... Question 15 of 48Question 16 of 48 16. Which is the semiconductor material? Germanium Manganin Eureka EboniteRate this question: Loading... Question 16 of 48Question 17 of 48 17. What is the unit of conductance? Ohm-m Mho Ohm/m OhmRate this question: Loading... Question 17 of 48Question 18 of 48 18. Calculate the voltage drop across the resistor 'R4' in the circuit. 48 V 72 V 80 V 100 VRate this question: Loading... Question 18 of 48Question 19 of 48 19. What is the effect of the parallel circuit with one branch opened? Whole circuit will not function Voltage drop increase in the opened branch Current will remain same No current will flow in that branchRate this question: Loading... Question 19 of 48Question 20 of 48 20. What is the change of resistance value of the conductor as its diameter is doubled? Decreases to four times Increases to two times No change in value of resistance Decrease to half of the valueRate this question: Loading... Question 20 of 48Question 21 of 48 21. Which electrical quantity affects the heat generated in a conductor? Square of the resistance Square of the current Voltage Current passed through itRate this question: Loading... Question 21 of 48Question 22 of 48 22. 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 22 of 48Question 23 of 48 23. How many electrons are there in the third cell of the copper atom? 29 8 18 13Rate this question: Loading... Question 23 of 48Question 24 of 48 24. Why the ohmmeter is graduated with non-linear scale?\ Voltage is directly proportional to the square of the current Voltage is directly proportional to resistance Resistance is inversely proportional to the square of current Current is inversely proportional to resistanceRate this question: Loading... Question 24 of 48Question 25 of 48 25. Which material is having negative temperature co-efficient property? Copper Eureka Mica ManganinRate this question: Loading... Question 25 of 48Question 26 of 48 26. What is the effect of the circuit, if 'ab' points are shorted? Circuit resistance will be zero Total circuit current is equal to each branch circuit current Same current will flow in all branches Supply voltage will exist in each branchRate this question: Loading... Question 26 of 48Question 27 of 48 27. Calculate the hot resistance of 200W / 250V rated lamp. 312.5 Ω 31.25 Ω 62.5 Ω 625 ΩRate this question: Loading... Question 27 of 48Question 28 of 48 28. What is the value of resistance in an open circuit? Zero High Low InfinityRate this question: Loading... Question 28 of 48Question 29 of 48 29. Calculate the value of resistance by colour coding method. 25 x 10³ ± 5%36 x 104 ± 5%23 x 104 ± 10%22 x 10³ ± 10%Rate this question: Loading... Question 29 of 48Question 30 of 48 30. Calculate the resistance value of the resistor by colour coding method. 26 x 10³ Ω ± 10%23 x 10³ Ω ± 5%37 x 104 Ω ± 10%32 x 104 Ω ± 10%Rate this question: Loading... Question 30 of 48Question 31 of 48 31. Calculate the value of unknown resistance 'RDC ' in the Wheatstone bridge network, If PAB = 500Ω, QBC = 300Ω, SAD = 15Ω,at balanced condition. 12Ω 9Ω 6Ω 3ΩRate this question: Loading... Question 31 of 48Question 32 of 48 32. Which type of resistor is used for Arc quenching protection in circuit breakers? Thermistors Sensistors Varistors Light dependent resistor (LDR)Rate this question: Loading... Question 32 of 48Question 33 of 48 33. What is the value of hot resistance of a bulb rated as 100W/250V? 62.50 ohm 625.00 ohm 312.50 ohm 31.25 ohmRate this question: Loading... Question 33 of 48Question 34 of 48 34. Which law states that in closed electric circuit, the applied voltage is equal to the sum of the voltage drops? Kirchhoff's second law Laws of resistance Kirchhoff's first law Ohm's lawRate this question: Loading... Question 34 of 48Question 35 of 48 35. What is the specific resistance value of copper conductor? 1.72 Micro ohm1.72 Micro ohm/cm³1.72 Ohm/cm³ 1.72 Micro ohm/mRate 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. What is the name of the resistor? Metal film resistor Carbon composition resistor Carbon - film resistor Wire wound resistorRate this question: Loading... Question 37 of 48Question 38 of 48 38. What is the formula for Quantity of electricity (Q)? Current x Time Voltage x Resistance Current x Resistance Voltage x CurrentRate this question: Loading... Question 38 of 48Question 39 of 48 39. What is the reading of the voltmeter 'V'? 0 V 18 V 6 V 9 VRate this question: Loading... Question 39 of 48Question 40 of 48 40. What is the value of resistance of the resistor? 33000 ± 5 % Ohm 3300 ± 10% Ohm 330000 ± 10% Ohm 330 ± 5% OhmRate this question: Loading... Question 40 of 48Question 41 of 48 41. Calculate the electrical energy in unit consumed by 500W lamp for 5 hours. 2.5 unit 0.5 unit 1.5 unit 1.0 unitRate this question: Loading... Question 41 of 48Question 42 of 48 42. What is the name of the resistor if its resistance value increase with increase in temperature? Varistors Sensistors Thermistors Light Dependent Resistor (LDR)Rate this question: Loading... Question 42 of 48Question 43 of 48 43. Calculate the resistance value in R3 resistor. 4 Ohm 12 Ohm 6 Ohm 8 OhmRate this question: Loading... Question 43 of 48Question 44 of 48 44. Calculate the value of resistance 'R2' in the parallel circuit. 4 Ω 8 Ω 6 Ω 2 ΩRate this question: Loading... Question 44 of 48Question 45 of 48 45. Calculate the unknown resistance "RDC" in the Wheatstone bridge circuit, if PAB=400 ohms, QBC=200 ohms and SAD=12ohms at balanced condition. 8 Ω 4 Ω 6 Ω 12 ΩRate this question: Loading... Question 45 of 48Question 46 of 48 46. What is the effect on opened resistor in series circuit? Total supply voltage will appear across the opened resistor Full circuit current will flow in opened resistor No voltage will appear across the opened resistor No effect in opened resistorRate this question: Loading... Question 46 of 48Question 47 of 48 47. Which type of meter is used to test the polarity of battery? Moving iron ammeter Moving iron voltmeter Dynamo meter type wattmeter Moving coil voltmeterRate this question: Loading... Question 47 of 48Question 48 of 48 48. 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 increase the value of meter resistance To limit the current in the circuitRate this question: Loading... Question 48 of 48 Loading...
