PG Diploma in Solar Semester Two Paper 3 exam SECTION A

MCQs (1–70)

1. The purlin in a mounting structure is also called:
a) Junction box
b) Horizontal rail
c) Earth strip
d) Fuse holder
Answer: b

2. One important internal element of a junction box is:
a) Fan blade
b) Diode
c) Chimney
d) Meter glass
Answer: b

3. One maintenance point in a combiner box is checking the:
a) Roof paint
b) Surge protector
c) Module glass color
d) Tracker wheel
Answer: b

4. PV cables mainly carry:
a) Steam
b) Hydraulic oil
c) Electric current
d) Air pressure
Answer: c

5. The most common wire insulation used in PV wire is:
a) XLPE
b) Wood pulp
c) Ceramic
d) Cotton wrap
Answer: a

6. Which wire is designed for underground service entrance?
a) PV wire
b) THHN
c) USE-2
d) LAN cable
Answer: c

7. Increased temperature generally causes cable resistance to:
a) Decrease
b) Increase
c) Become zero
d) Reverse sign
Answer: b

8. Cable grouping affects current rating due to:
a) Better airflow
b) Mutual heating
c) Low sunlight
d) Reduced insulation
Answer: b

9. Edge clips are recommended to:
a) Increase voltage
b) Avoid drilling panels
c) Increase module tilt
d) Decrease power output
Answer: b

10. One sign of cable corrosion is:
a) Cleaner connector surface
b) Rust or discoloration
c) Lower cable temperature
d) Less resistance
Answer: b

11. Site assessment before installation is part of:
a) Post-failure analysis only
b) Site readiness
c) Billing process
d) Marketing plan
Answer: b

12. South-facing installation is usually recommended in the:
a) Southern hemisphere
b) Northern hemisphere
c) Arctic only
d) Equator only
Answer: b

13. Off-grid systems include a:
a) Charge controller
b) Steam valve
c) Boiler
d) Turbine shaft
Answer: a

14. Microinverter systems connect each:
a) Array to one large transformer
b) Panel to microinverter
c) Roof to earth pit
d) Junction box to tracker
Answer: b

15. Disconnect switches are used mainly for:
a) Lighting aesthetics
b) Isolation during maintenance
c) Increasing current
d) Reducing roof load
Answer: b

16. Color coding and clamps in installation are related to:
a) Cable management
b) Environmental clearance
c) Research design
d) Funding proposal
Answer: a

17. One inspection after installation is:
a) Fashion check
b) Insulation resistance test
c) Newspaper review
d) Market survey
Answer: b

18. Never install solar panels during:
a) Calm morning
b) Windy or rainy conditions
c) Mild daylight
d) Indoor testing
Answer: b

19. A feasibility study checks whether a system is:
a) Technically and financially appropriate
b) Only aesthetically pleasing
c) Only mechanically possible
d) Only profitable
Answer: a

20. Grid connection is part of:
a) Site decoration
b) Site selection criteria
c) Module cleaning
d) Cell cutting
Answer: b

21. MNRE provides matters related to:
a) New and renewable energy
b) Postal services
c) Sports policy
d) Mining only
Answer: a

22. PPA stands for:
a) Power Purchase Agreement
b) Panel Protection Assembly
c) Public Power Act
d) Project Performance Audit
Answer: a

23. One item under permits and approvals is:
a) Occupancy certificate
b) Passport clearance
c) Railway ticket
d) Cinema permit
Answer: a

24. EIA considers project effects during its:
a) Procurement only
b) Life cycle
c) Billing cycle only
d) Construction day only
Answer: b

25. One criterion for solar panel selection is:
a) Solar cell efficiency
b) Paint thickness
c) Fuel pressure
d) Rotor speed
Answer: a

26. One key module parameter mentioned is:
a) PID resistance
b) Water content
c) Colour temperature
d) Shaft alignment
Answer: a

27. The notes state that a 1 MW plant may produce per day:
a) 400 kWh
b) 4,000 kWh
c) 40,000 kWh
d) 400,000 kWh
Answer: b

28. Typical residential payback in the notes is:
a) 1–2 years
b) 5–7 years
c) 10–15 years
d) 20 years
Answer: b

29. Gantt chart is associated with:
a) Community meeting
b) Project timeline
c) PV cleaning
d) Earthing design only
Answer: b

30. Finish-to-start is a type of:
a) Weather change
b) Dependency relationship
c) Cable route
d) Cell structure
Answer: b

31. Critical path influences:
a) Panel colour
b) Project duration
c) Daily weather
d) Glass reflection
Answer: b

32. Procurement strategy includes:
a) Bulk buying
b) Quality-certified product
c) Reputed vendors
d) All of these
Answer: d

33. One supplier-contractor partnership requirement is:
a) Clear communication
b) Random delay
c) Unchecked quality
d) Unrecorded delivery
Answer: a

34. Construction process overview includes:
a) Site survey
b) Panel mounting
c) Inverter connection
d) All of these
Answer: d

35. One quality control point is:
a) Continuous improvement
b) No documentation
c) No inspection
d) No testing
Answer: a

36. Health and safety measures include:
a) PPE
b) Risk assessment
c) Fall protection
d) All of these
Answer: d

37. One importance of testing is:
a) Fault identification
b) Safety assurance
c) Reliability
d) All of these
Answer: d

38. Commissioning includes:
a) Voltage polarity
b) I-V curve testing
c) Thermal imaging
d) All of these
Answer: d

39. One performance evaluation parameter is:
a) Capacity factor
b) Panel color index
c) Roof mass ratio
d) Fuel efficiency
Answer: a

40. Ground faults are checked under:
a) Monitoring and maintenance
b) Literature review
c) Funding source
d) Community meeting
Answer: a

41. Educational programs are part of:
a) Community engagement
b) Cable testing
c) Roof loading
d) Inverter repair
Answer: a

42. Solar access for nonprofits is an example of:
a) Social responsibility initiative
b) Voltage testing
c) Procurement audit
d) Land acquisition
Answer: a

43. Bifacial solar panels are mentioned under:
a) Future trends
b) Procurement failures
c) Commissioning tests
d) Thesis appendix
Answer: a

44. Renewable portfolio standards are a:
a) Policy change affecting solar projects
b) Mounting bracket type
c) Grounding method
d) Billing document
Answer: a

45. AI and machine learning are listed as:
a) Potential advancements in the field
b) Cable faults
c) Earthing methods
d) Structural loads
Answer: a

46. Curiosity is described as the:
a) Source of our questions
b) Final answer only
c) Opposite of research
d) End of study
Answer: a

47. Research is described as:
a) Casual opinion
b) Systematic inquiry
c) Only classroom discussion
d) Simple guesswork
Answer: b

48. A research question should end with a:
a) Full stop
b) Colon
c) Question mark
d) Hyphen
Answer: c

49. A valid research question should be:
a) Focused
b) Feasible
c) Original
d) All of these
Answer: d

50. Literature review helps to identify:
a) Research contribution possibilities
b) Panel cleaning tools only
c) Earthing rod size only
d) Roof paint brand only
Answer: a

51. One preliminary question in research is:
a) Who is involved in the problem?
b) What is the panel color?
c) Which truck delivered material?
d) What is the rooftop paint code?
Answer: a

52. “Why” questions mainly seek:
a) Causal explanations
b) Location only
c) Responsible person only
d) Sequence only
Answer: a

53. “How” questions mainly seek:
a) Mechanisms
b) Time sequence only
c) Geographical location only
d) Only final answers
Answer: a

54. A good research question cannot be answered in:
a) One word
b) Paragraph form
c) Analytical discussion
d) Literature form
Answer: a

55. One thesis component is:
a) Abstract
b) Gearbox
c) Boiler code
d) Shaft sleeve
Answer: a

56. Another thesis component is:
a) Problem statement
b) Weather vane
c) Rafter clamp
d) Fuse socket only
Answer: a

57. Residential case study sizing is based on:
a) Live electricity bill
b) Weather report
c) Roof color
d) Government survey only
Answer: a

58. Commercial case study starts at:
a) 25 kW
b) 100 kW
c) 250 kW
d) 1 MW
Answer: c

59. Industrial case study starts at:
a) 500 kW
b) 1 MW
c) 2 MW
d) 5 MW
Answer: d

60. One major project objective is:
a) Regulatory compliance
b) Engine lubrication
c) Coal transport
d) Boiler pressure
Answer: a

61. Solar project scope may include:
a) Geographical coverage
b) Budget and funding
c) Monitoring and maintenance
d) All of these
Answer: d

62. One social benefit of solar energy in the notes is:
a) Improving quality of life
b) Increased coal ash
c) More fuel imports
d) Higher smoke emission
Answer: a

63. One environmental benefit in the notes is:
a) Reducing air and water pollution
b) Increasing hazardous waste
c) Increasing fuel use
d) More smoke
Answer: a

64. One economic benefit in the notes is:
a) Decrease utility bills
b) Increase pollution cost
c) Increase diesel dependency
d) Reduce system life
Answer: a

65. Thorough planning increases the:
a) Success rate
b) Confusion level
c) Cable resistance
d) Roof leakage
Answer: a

66. Community engagement is included under:
a) Importance of thorough planning
b) Cable derating only
c) Junction box rating
d) Inverter cooling
Answer: a

67. Site conditions for construction are part of:
a) Site selection criteria
b) Thesis appendix
c) Ground fault test
d) PR calculation
Answer: a

68. One permit needed is:
a) Net metering approval
b) TV license
c) Vehicle permit
d) Passport renewal
Answer: a

69. One funding institute listed is:
a) IREDA
b) ISRO
c) DRDO
d) RBI mint
Answer: a

70. One important step before thesis formulation is:
a) Reading literature on the topic
b) Choosing roof color
c) Counting bolts only
d) Selecting panel brand randomly
Answer: a