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. Calculate the resistance value in R3 resistor. 4 Ohm 12 Ohm 6 Ohm 8 OhmRate 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 time Voltage x resistance Current x resistanceRate this question: Loading... Question 2 of 48Question 3 of 48 3. What is the formula for Quantity of electricity (Q)? Current x Time Current x Resistance Voltage x Current Voltage x ResistanceRate this question: Loading... Question 3 of 48Question 4 of 48 4. Why the ohmmeter is graduated with non-linear scale?\ Resistance is inversely proportional to the square of current Voltage is directly proportional to the square of the current Voltage is directly proportional to resistance Current is inversely proportional to resistanceRate this question: Loading... Question 4 of 48Question 5 of 48 5. Which type of meter is used to test the polarity of battery? Dynamo meter type wattmeter Moving iron ammeter Moving coil voltmeter Moving iron voltmeterRate this question: Loading... Question 5 of 48Question 6 of 48 6. 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 increase the value of meter resistance To limit the current in the circuit To prevent the excess current in the circuitRate this question: Loading... Question 6 of 48Question 7 of 48 7. 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 first law Kirchhoff's second lawRate this question: Loading... Question 7 of 48Question 8 of 48 8. What is the effect on opened resistor in series circuit? Full circuit current will flow in opened resistor No effect in opened resistor No voltage will appear across the opened resistor Total supply voltage will appear across the opened resistorRate this question: Loading... Question 8 of 48Question 9 of 48 9. What is the voltage drop in resistor 'R2' in the series circuit? 5 Volt 10 Volt 15 Volt 20 VoltRate this question: Loading... Question 9 of 48Question 10 of 48 10. 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 10 of 48Question 11 of 48 11. What is the S.I unit of specific resistance?Micro ohm/cm² Ohm-metre Ohm/cm Ohm/metre²Rate this question: Loading... Question 11 of 48Question 12 of 48 12. Calculate the electrical energy in unit consumed by 500W lamp for 5 hours. 2.5 unit 1.5 unit 0.5 unit 1.0 unitRate this question: Loading... Question 12 of 48Question 13 of 48 13. What is the reading of ohmmeter across opened 'R2' resistor? Value of sum of the resistance of R1 and R3 only Total resistance value of the circuit Indicate infinite resistance Indicate zero readingRate this question: Loading... Question 13 of 48Question 14 of 48 14. Which is the semiconductor material? Ebonite Germanium Manganin EurekaRate this question: Loading... Question 14 of 48Question 15 of 48 15. What is the unit of conductance? Ohm Ohm-m Ohm/m MhoRate this question: Loading... Question 15 of 48Question 16 of 48 16. Calculate the hot resistance of 200W / 250V rated lamp. 312.5 Ω 625 Ω 62.5 Ω 31.25 ΩRate this question: Loading... Question 16 of 48Question 17 of 48 17. Which method is used for measuring 1 Ohm to 100K Ohm range resistance? Wheat stone bridge method Voltmeter and ammeter method Substitution method Kelvin bridge methodRate this question: Loading... Question 17 of 48Question 18 of 48 18. Which one defines the change in resistance in Ohm(Ω) per degree centigrade (°C)? Temperature coefficient Laws of temperature Temperature effect Temperature constantRate this question: Loading... Question 18 of 48Question 19 of 48 19. 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 19 of 48Question 20 of 48 20. Which type of resistor is used for Arc quenching protection in circuit breakers? Light dependent resistor (LDR) Varistors Sensistors ThermistorsRate this question: Loading... Question 20 of 48Question 21 of 48 21. What is the name of the resistor? Wire wound resistor Carbon composition resistor Carbon - film resistor Metal film resistorRate this question: Loading... Question 21 of 48Question 22 of 48 22. Calculate the resistance value of the resistor by colour coding method. 32 x 104 Ω ± 10%26 x 10³ Ω ± 10%37 x 104 Ω ± 10%23 x 10³ Ω ± 5%Rate this question: Loading... Question 22 of 48Question 23 of 48 23. c.b.d.a.Rate this question: Loading... Question 23 of 48Question 24 of 48 24. What is the value of resistance in an open circuit? High Infinity Low ZeroRate this question: Loading... Question 24 of 48Question 25 of 48 25. Which is the application of series circuit? Shunt resistor in ammeter Multiplier resistor of a voltmeter Voltmeter connection Lighting circuits in homeRate this question: Loading... Question 25 of 48Question 26 of 48 26. Which is the application of series circuit? Fuse in circuit Shunt resistor in ammeter Electrical lamp in homes Voltmeter connectionRate this question: Loading... Question 26 of 48Question 27 of 48 27. What is the resistance of Light Dependent Resistor (LDR), if the intensity of light is increased? Becomes infinity Decreases Increases Remains sameRate this question: Loading... Question 27 of 48Question 28 of 48 28. Which is inversely proportional to the resistance of a conductor? Resistivity Length Temperature Area of cross sectionRate this question: Loading... Question 28 of 48Question 29 of 48 29. What is the effect of the circuit, if 'ab' points are shorted? Total circuit current is equal to each branch circuit current Same current will flow in all branches Supply voltage will exist in each branch Circuit resistance will be zeroRate this question: Loading... Question 29 of 48Question 30 of 48 30. Which electrical quantity affects the heat generated in a conductor? Voltage Current passed through it Square of the current Square of the resistanceRate this question: Loading... Question 30 of 48Question 31 of 48 31. Calculate the unknown resistance "RDC" in the Wheatstone bridge circuit, if PAB=400 ohms, QBC=200 ohms and SAD=12ohms at balanced condition. 4 Ω 12 Ω 8 Ω 6 ΩRate this question: Loading... Question 31 of 48Question 32 of 48 32. 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 Increases to two times No change in value of resistanceRate this question: Loading... Question 32 of 48Question 33 of 48 33. Which material is having negative temperature co-efficient property? Eureka Mica Manganin CopperRate this question: Loading... Question 33 of 48Question 34 of 48 34. Calculate the value of resistance 'R2' in the parallel circuit. 4 Ω 2 Ω 6 Ω 8 ΩRate this question: Loading... Question 34 of 48Question 35 of 48 35. What is the unit of resistivity?ohm / cm² ohm / cm ohm - metre ohm / metreRate this question: Loading... Question 35 of 48Question 36 of 48 36. What is the change in value of resistance of the conductor, if its cross section area is doubled? Decreases 4 times Decreases 2 times Increases 2 times No changeRate this question: Loading... Question 36 of 48Question 37 of 48 37. Calculate the value of unknown resistance 'RDC ' in the Wheatstone bridge network, If PAB = 500Ω, QBC = 300Ω, SAD = 15Ω,at balanced condition. 12Ω 3Ω 9Ω 6ΩRate this question: Loading... Question 37 of 48Question 38 of 48 38. Which resistor the lowest current flows in a parallel circuit having the values of 50Ω, 220Ω, 450Ω and 560Ω connected with supply? 560 Ω 50 Ω 450 Ω 220 ΩRate this question: Loading... Question 38 of 48Question 39 of 48 39. Calculate the value of resistance by colour coding method. 25 x 10³ ± 5%23 x 104 ± 10%22 x 10³ ± 10%36 x 104 ± 5%Rate this question: Loading... Question 39 of 48Question 40 of 48 40. What is the effect of the parallel circuit with one branch opened? Whole circuit will not function No current will flow in that branch Current will remain same Voltage drop increase in the opened branchRate this question: Loading... Question 40 of 48Question 41 of 48 41. Calculate the total power of the circuit of two lamps rated as 200W/240V are connected in series across 240V supply? 400 W 200 W 100 W 50 WRate this question: Loading... Question 41 of 48Question 42 of 48 42. What is the reading of the voltmeter 'V'? 6 V 0 V 9 V 18 VRate this question: Loading... Question 42 of 48Question 43 of 48 43. What electrical quantities are related in Ohm's law? Current, voltage and resistivity Voltage, resistance and current density Current, voltage and resistance Current, resistance and powerRate this question: Loading... Question 43 of 48Question 44 of 48 44. What is the value of resistance of the resistor? 3300 ± 10% Ohm 330000 ± 10% Ohm 330 ± 5% Ohm 33000 ± 5 % OhmRate this question: Loading... Question 44 of 48Question 45 of 48 45. How many electrons are there in the third cell of the copper atom? 13 8 18 29Rate this question: Loading... Question 45 of 48Question 46 of 48 46. What is the name of the resistor if its resistance value increase with increase in temperature? Light Dependent Resistor (LDR) Thermistors Varistors SensistorsRate this question: Loading... Question 46 of 48Question 47 of 48 47. 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 47 of 48Question 48 of 48 48. Calculate the voltage drop across the resistor 'R4' in the circuit. 80 V 100 V 72 V 48 VRate this question: Loading... Question 48 of 48 Loading...
