final round

1.What is the main component of biogas, and what makes it a sustainable alternative to fossil

fuels?

• A) Methane can be used for various purposes like cooking, lighting, heating,

  electricity generation, and vehicle fuel

• B) Carbon dioxide has a lower global warming potential than methane

• C) Water vapour helps absorb excess greenhouse gases from the atmosphere

•   D) Hydrogen sulphide is a catalyst for converting biogas into a renewable energy source

2.The household energy meter is

• a. An indicating instrument

• b. A recording instrument

• c. An integrating instrument

• d. None of these

3.In a PNP transistor the base is the N-region. Its width relative to the P-region is

• Smaller

• Larger

• Same

• Not related

4. What does positive power in an electrical element indicate?

• a) Element is absorbing power
  
  

• b) Element is supplying power
  
  

• c) Element may absorb or supply power
  
  

• d) Element is neither absorbing nor supplying power

5.The power transmitted will be maximum when

• (a) corona losses are minimum

• (b) reactance is high

• (c) sending end voltage is more

• d) receiving end voltage is more.

6. What is the value of dielectric constant of air?

• a) less than

• b) 0

• c)1

• d)none of these

7..Which state in India among these doesn’t have a gas turbine plant?

• a. Jammu Kashmir

• b. Tripura

• c. Tamil Nadu

• d. Bihar

8.A closed switch has a resistance of

• a) zero

• b) infinity

• c) around 500 ohms

• d) none of the above

9.which planet is called red planet in our solar system?

• a) Mercury

• b)Mars

• c)Jupiter

• d) Neptune

10..A circuit component that opposes the change in circuit voltage is

• (a) resistance

• (b) capacitance

• (c) inductance

• (d) all of the above