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Solar PV: NABCEP Exam solved MCQs with theory explained

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Guaranteed learning and preparation for Certifications like NABCEP Associate with detailed theory explained


1. Introduction
  • 1. Introduction

  • 2. Solved Certification Questions with Theory Explained
  • 1. Color of Earthing Cable
  • 2. Color Scheme of the 120220 AC Split
  • 3. Calculate Voltage in a Cable
  • 4. Calculate System Power given Solar Irradiance and Module Power
  • 5. Understanding Multimode Inverter
  • 6. Understanding Sun Path Chart
  • 7. Which type of System to install at home
  • 8. Which Grounding System is used these days
  • 9. Type of Mounting Method required for roof top
  • 10. Difference between Inverter, Charge Controller, Transformer and Super Capacitor
  • 11. What is PV Cable
  • 12. Understanding OSHA
  • 13. Understanding Transformers
  • 14. Calculating least No of PV Modules for a System
  • 15. Understanding Units of Solar Irradiance
  • 16. Where is Grounding Point in support structure of PV array
  • 17. Why Bypass Diodes are used
  • 18. Different areas in IV Curve of a PV Module
  • 19. Understanding change in PV Voltage due to temperature
  • 20. Fuse rating of a PV Module
  • 21. Difference between equipment of transmission, distribution and service equipment
  • 22. Calculating mppt voltage given 4 No. of source circuits
  • 23. Understand to Calculate Electrical Power
  • 24. Understanding Voltage drop phenomenon in a cable
  • 25. Understanding Sealed Batteries
  • 26. Ground Fault detection by Inverter
  • 27. Calculating System Size given two No of Source circuits
  • 28. Who approves a PV System
  • 29. Understanding and Calculating Cell Voltage of a PV Module
  • 30. Understanding various tools for troubleshooting
  • 31. Understanding effect due to undersized PV system
  • 32. Understanding Mounting types for PV Modules
  • 33. Recommended slop of the ladder as per OSHA
  • 34. Safety concerns while working on an electrical system
  • 35. Location where PV disconnect not allowed
  • 36. Understanding most possible hazard while working on PV Systems
  • 37. Understanding how current ca be effected in a PV Module
  • 38. Calculating Electrical Energy Units (KWh)
  • 39. Calculating Resistance in a Circuit
  • 40. What is STC Standard
  • 41. What is Direct PV application
  • 42. Understanding specifications of a Charge Controller
  • 43. What is Fall Protection as per OSHA
  • 44. Requirements of Safety Net as per OSHA
  • 45. Requirements of Stairways as per OSHA
  • 46. Category of High Voltage Safety Hats
  • 47. How much current passing through human body is dangerous
  • 48. Safest way to find out the PV Output Current
  • 49. Understanding MPPT
  • 50. What insulation of a conductor represents
  • 51. Calculating Annual Energy Yield of a System given specs
  • 52. Safe way of handling PV modules on a roof
  • 53. Safe way to test DC voltage of a PV Disconnect
  • 54. Understanding effect of PV Modules connected in parallel
  • 55. Troubleshooting Off-Grid PV system often shuts down during winter
  • 56. Where Bypass Diodes are located
  • 57. Who make requirements for electrical safety for Employees
  • 58. Understanding Cable sizing
  • 59. Understanding core component of a PV Module
  • 60. Understanding Magnetic Declination
  • 61. Who decides which standards to apply
  • 62. Calculating Efficiency of the PV Module given rated power and size
  • 63. Calculating Voltage drop between Battery and Charge Controller
  • 64. Understanding Equinox
  • 65. What happens if output terminals of a PV Module are shorted
  • 66. What to do if stand-alone PV System designed hardly fulfil the Load requirements
  • 67. Finding tilt angle of the PV Module for best summer performance
  • 68. Suitable Tools to check and troubleshoot
  • 69. What are requirements to replace faulty Inverter
  • 70. Understanding Equalizing in Batteries
  • 71. Requirement of heavy equipment Operator as per OSHA
  • 72. Suitable instrument to measure the insulation resistance of a Cable
  • 73. What is Residential Voltage scheme in US
  • 74. Understanding the importance of ASHRAE in design of Solar PV Systems
  • 75. Understanding requirements of MC4 connectors
  • 76. Understanding PV Wire or cable for a PV Module
  • 77. Finding suitbale location of an Inverter for a Farm land given site data
  • 78. Understanding Interactive PV system
  • 79. Selecting econimical PV Module for a site given cost and others
  • 80. Prohibited area of installing Lead Acid Battery
  • 81. Understanding Electrical Voltage
  • 82. Understanding Hybrid System
  • 83. Requirements of terminals of PV Module
  • 84. Understanding Secondary Battery
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