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. d.b.c.a.Rate this question: Loading... Question 1 of 48Question 2 of 48 2. What is the unit of resistivity? ohm - metreohm / cm² ohm / metre ohm / cmRate this question: Loading... Question 2 of 48Question 3 of 48 3. What is the value of hot resistance of a bulb rated as 100W/250V? 31.25 ohm 62.50 ohm 312.50 ohm 625.00 ohmRate this question: Loading... Question 3 of 48Question 4 of 48 4. What is the reading of ohmmeter across opened 'R2' resistor? Total resistance value of the circuit Indicate zero reading Value of sum of the resistance of R1 and R3 only Indicate infinite resistanceRate this question: Loading... Question 4 of 48Question 5 of 48 5. What is the indication of neon polarity indicator used for checking A.C. supply? One electrode will glow and another will be flickering Both electrodes will be flickering Both electrodes will glow Only one electrode will glowRate 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 limit the current in the circuit To adjust the zero position of the pointer To increase the value of meter resistance To prevent the excess current in the circuitRate this question: Loading... Question 6 of 48Question 7 of 48 7. Calculate the voltage drop across the resistor 'R4' in the circuit. 48 V 100 V 72 V 80 VRate this question: Loading... Question 7 of 48Question 8 of 48 8. What is the effect of the parallel circuit with one branch opened? No current will flow in that branch Voltage drop increase in the opened branch Whole circuit will not function Current will remain sameRate this question: Loading... Question 8 of 48Question 9 of 48 9. 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 9 of 48Question 10 of 48 10. What is the resistance of Light Dependent Resistor (LDR), if the intensity of light is increased? Remains same Increases Decreases Becomes infinityRate this question: Loading... Question 10 of 48Question 11 of 48 11. What is the effect of the circuit, if 'ab' points are shorted? Supply voltage will exist in each branch Total circuit current is equal to each branch circuit current Circuit resistance will be zero Same current will flow in all branchesRate this question: Loading... Question 11 of 48Question 12 of 48 12. What is the voltage drop in resistor 'R2' in the series circuit? 10 Volt 20 Volt 15 Volt 5 VoltRate this question: Loading... Question 12 of 48Question 13 of 48 13. 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 13 of 48Question 14 of 48 14. Which method is used for measuring 1 Ohm to 100K Ohm range resistance? Wheat stone bridge method Kelvin bridge method Substitution method Voltmeter and ammeter methodRate this question: Loading... Question 14 of 48Question 15 of 48 15. What electrical quantities are related in Ohm's law? Current, voltage and resistivity Voltage, resistance and current density Current, resistance and power Current, voltage and resistanceRate this question: Loading... Question 15 of 48Question 16 of 48 16. Which material is having negative temperature co-efficient property? Mica Copper Eureka ManganinRate this question: Loading... Question 16 of 48Question 17 of 48 17. What is the value of resistance in an open circuit? High Zero Infinity LowRate this question: Loading... Question 17 of 48Question 18 of 48 18. Which is inversely proportional to the resistance of a conductor? Area of cross section Temperature Length ResistivityRate this question: Loading... Question 18 of 48Question 19 of 48 19. 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 19 of 48Question 20 of 48 20. What is the change of resistance value of the conductor as its diameter is doubled? No change in value of resistance Decreases to four times Decrease to half of the value Increases to two timesRate this question: Loading... Question 20 of 48Question 21 of 48 21. Which type of resistor is used for Arc quenching protection in circuit breakers? Thermistors Varistors Sensistors Light dependent resistor (LDR)Rate this question: Loading... Question 21 of 48Question 22 of 48 22. Calculate the resistance value in R3 resistor. 4 Ohm 6 Ohm 12 Ohm 8 OhmRate this question: Loading... Question 22 of 48Question 23 of 48 23. Calculate the resistance value of the resistor by colour coding method. 37 x 104 Ω ± 10%23 x 10³ Ω ± 5%32 x 104 Ω ± 10%26 x 10³ Ω ± 10%Rate this question: Loading... Question 23 of 48Question 24 of 48 24. Which one defines the change in resistance in Ohm(Ω) per degree centigrade (°C)? Temperature effect Temperature coefficient Temperature constant Laws of temperatureRate this question: Loading... Question 24 of 48Question 25 of 48 25. Which type of meter is used to test the polarity of battery? Moving coil voltmeter Moving iron ammeter Dynamo meter type wattmeter Moving iron voltmeterRate this question: Loading... Question 25 of 48Question 26 of 48 26. Which law states that in closed electric circuit, the applied voltage is equal to the sum of the voltage drops? Kirchhoff's second law Kirchhoff's first law Laws of resistance Ohm's lawRate this question: Loading... Question 26 of 48Question 27 of 48 27. Calculate the value of resistance 'R2' in the parallel circuit. 8 Ω 6 Ω 4 Ω 2 ΩRate this question: Loading... Question 27 of 48Question 28 of 48 28. Which is the application of series circuit? Fuse in circuit Voltmeter connection Shunt resistor in ammeter Electrical lamp in homesRate this question: Loading... Question 28 of 48Question 29 of 48 29. What is the S.I unit of specific resistance? Ohm-metre Ohm/cm Ohm/metre²Micro ohm/cm²Rate this question: Loading... Question 29 of 48Question 30 of 48 30. Which formula is used to calculate the power of a DC circuit? Voltage x resistance Current x resistance Current x voltage Voltage x timeRate this question: Loading... Question 30 of 48Question 31 of 48 31. Calculate the hot resistance of 200W / 250V rated lamp. 31.25 Ω 62.5 Ω 625 Ω 312.5 ΩRate this question: Loading... Question 31 of 48Question 32 of 48 32. Calculate the value of resistance by colour coding method. 36 x 104 ± 5%22 x 10³ ± 10%23 x 104 ± 10% 25 x 10³ ± 5%Rate this question: Loading... Question 32 of 48Question 33 of 48 33. 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 33 of 48Question 34 of 48 34. 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 8 Ω 4 Ω 6 ΩRate this question: Loading... Question 34 of 48Question 35 of 48 35. How many electrons are there in the third cell of the copper atom? 18 13 29 8Rate this question: Loading... Question 35 of 48Question 36 of 48 36. What is the formula for Quantity of electricity (Q)? Current x Resistance Current x Time Voltage x Current Voltage x ResistanceRate this question: Loading... Question 36 of 48Question 37 of 48 37. What is the unit of conductance? Ohm/m Ohm Mho Ohm-mRate this question: Loading... Question 37 of 48Question 38 of 48 38. Calculate the value of unknown resistance 'RDC ' in the Wheatstone bridge network, If PAB = 500Ω, QBC = 300Ω, SAD = 15Ω,at balanced condition. 6Ω 3Ω 12Ω 9ΩRate this question: Loading... Question 38 of 48Question 39 of 48 39. Which resistor the lowest current flows in a parallel circuit having the values of 50Ω, 220Ω, 450Ω and 560Ω connected with supply? 220 Ω 50 Ω 450 Ω 560 Ω Rate this question: Loading... Question 39 of 48Question 40 of 48 40. What is the effect on opened resistor in series circuit? Total supply voltage will appear across the opened resistor No effect in opened resistor No voltage will appear across the opened resistor Full circuit current will flow in opened resistorRate this question: Loading... Question 40 of 48Question 41 of 48 41. What is the reading of the voltmeter 'V'? 9 V 0 V 18 V 6 VRate this question: Loading... Question 41 of 48Question 42 of 48 42. Which is the application of series circuit? Multiplier resistor of a voltmeter Lighting circuits in home Shunt resistor in ammeter Voltmeter connectionRate this question: Loading... Question 42 of 48Question 43 of 48 43. Calculate the electrical energy in unit consumed by 500W lamp for 5 hours. 1.0 unit 2.5 unit 0.5 unit 1.5 unitRate this question: Loading... Question 43 of 48Question 44 of 48 44. Which is the semiconductor material? Eureka Ebonite Manganin GermaniumRate this question: Loading... Question 44 of 48Question 45 of 48 45. 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 Current is inversely proportional to resistance Voltage is directly proportional to resistanceRate this question: Loading... Question 45 of 48Question 46 of 48 46. 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 46 of 48Question 47 of 48 47. 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 47 of 48Question 48 of 48 48. What is the name of the resistor? Metal film resistor Carbon composition resistor Carbon - film resistor Wire wound resistorRate this question: Loading... Question 48 of 48 Loading...
