NPTEL Smart Grid: Basics to Advanced Technologies Week 2 Assignment Answers 2024

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NPTEL Smart Grid: Basics to Advanced Technologies Week 2 Assignment Answers 2024

1. What is the function of DCA in SCADA?

  • Acquires data from devices
  • Manipulates the data before they presented to the master
  • Presents data to the master station
  • Acquire the data from the RTU
Answer :- For Answer Click Here

2. In context of signal conditioning, prior to input to the ADC stage, ________ is applied to signal.

  • Feedback signal
  • High pass filter
  • Low pass filter
  • None of these
Answer :- For Answer Click Here

3. The main impact of series resistance is to ______ the fill factor.

  • Increase
  • Decrease
  • Double
  • Multiply
Answer :- For Answer Click Here

4. Which of the following PV technologies has the Highest efficiency?

  • Amorphous Silicon
  • Copper indium Gallium Selenide
  • Mono-crystalline Silicon
  • Poly-crystalline Silicon
Answer :- 

5. A PV array has the open circuit voltage 370V, short circuit current 28 A and maximum power is 8kW then find the fill factor

  • 0.66
  • 0.55
  • 0.77
  • 0.88
Answer :- 

6. In context of solar cell characteristics as solar irradiance and temperature change, the P-V curves shifts

  • down and to the right
  • down and to the left
  • up and to the right
  • up and to the left
Answer :- For Answer Click Here

7. Maximum efficiency of wind turbine is:

  • 69.3
  • 59.3
  • 70.3
  • 65.3
Answer :- 

8. Why is the low speed shaft connected to the gearbox?

  • To increase stability
  • To increase the rpm
  • To decrease the stress
  • None of these
Answer :- 

9. During the periods of extremely high winds and maintenance, which of the below equipment is used to stop the wind turbine for safety of the whole system?

  • Low speed shaft
  • Brake
  • Nacelle
  • Both (b) and (c)
Answer :- 

10. In the DFIG Tem>0 and S<0 than the mode of operation and speed of the machine is

  • Generator, ωm> ωs
  • Motor, ωm> ωs
  • Generator, ωm< ωs
  • Generator, ωm> ωs
Answer :- For Answer Click Here