Renewable energy sources

1➤ Which of the following is the building block of pv system?

SiliconModulesArrayCells

2➤ Which of the following resources is renewable?

All of theseOceanSunForest

3➤ Which of the following defines the ocean thermal energy conversion?

Technology for producing energy by ocean surface waters and deep ocean watersTechnology for producing energy by temperature difference between ocean wave force of surface watersTechnology for producing energy by steam made from ocean waters and then steam rotates the turbineAll of these

4➤ Usually solar cell efficiency ranges from

25%10-25%780%12-15%

5➤ Radiant energy can not be measured in

Joules Radiant power AngstronRadiant flux

6➤ The angle at which PV panel is installed from the horizontal affects it's output . The ideal angle from horizontal surface is

10°55°60°30 to 45°

7➤ Solar array is a:

parallel combination of solar plant with another plantcascade connected solar plant combination of solar panel with inverter series and parallel combination of solar cells

8➤ The unit of wind speed is

KnotKm/sS/kmnone of these

9➤ In Photo Voltaic system (PV-system) arrange the following from smallest to the largest unit (A) Module (B) Array (C) Solar cell (D) Array field Choose the correct answer from the options given below:

(B), (D), (A), (C(C), (A), (B), (D) (C), (B), (D), (A)(B), (D), (C), (A)

10➤ The First Union Territory of India to run 100 percent on solar energy is-

Andaman-Nicobar PuducherryChandigarhDiu

11➤ Which is the first hydropower plant in India?

Tehri damIdukkiShivana samudraBhakra nangal dam

12➤ Which is the largest hydel power project in India?

Koyna Salal Sardar sarovarTehri

13➤ What is life expectancy of hydro power plant in years?

40-5060-10010-20>100

14➤ Which device is used to measure solar irradiance on planner surface?

Net radiatorGordon guagePyranometer All of these

15➤ What is range of small generation electricity windmils?

<10KW>10 KWAll of theseNone of these

16➤ What is efficiency of geothermal power generation?

1.5%0.5%5%37.7%

17➤ What is range of large electricity generation windmils?

250KW-2 + MW150 KW300 KWNone of these

18➤ Which component is NOT required in conversion of wind energy to electrical DC supply?

Wind turbineCharge controllerGeneratorDC load

19➤ Which component in the wind power plant controls the angle of blades whenever the wind changes by rotating the angle of blades to cut the maximum wind?

NacelleWind vanePitch driveYaw drive

20➤ The target set by the Indian government for generating power from wind energy by the year 2022:?

50 GW60 GW40 GWNone of these

21➤ The target set by the Indian government for generating power from small hydro plant by the year 2022:

5 GW5 MW50 MWNone of thess

22➤ What is the effect of increase in solar irradiance level on solar PV cell open circuit voltage and short circuit current? (A) (B) (C) (D)

the open circuit voltage decreases and short circuit current increase the open circuit voltage increases and short circuit current decreaseBoth the open circuit voltage and short circuit current increaseBoth the open circuit voltage and short circuit current decrease

23➤ The Sun-radiated solar energy on the surface of Erath on a normal sunny day is approximately: A. B. C. D.

1000W/m21320 W/m2100 W/m2 10000 W/m2

24➤ What is full form of MHD generators?

Magneto hydro dynamicMomento hydro dynamic Magneto hydro discharge All of these

25➤ In a biogas plant, PH of slurry is kept between

6.5-8.55.5-6.54.5-5.58.5-10.5

26➤ What is VAWT considering wind turbine?

Variable axis wind turbine Vertical axis wind turbine Volt ampere wind turbine Vertical area wind turbine

27➤ What is principle of operation of MHD generators?

Faradays lawKirchoff lawPlanks ruleFleming's rule

28➤ For wind power electricity generation which among the following type of rotors is most commonly used?

Savonius rotorPropeller rotorMulti blade rotorDarrius rotor

29➤ Which type of solar cells is most expensive?

Monocrystalline solar panelsPolycrystalline germanium Amorphous silicon solar pannelsPolycrystalline silicon

30➤ Hirakund hydro electric power plant is in which state ?

Andra pradeshOdishaSikkim Uttarakhand

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