32) Principle of Electromagnetic induction was invented by the scientist _______.
A. Ohm. B. Michael Faraday C. Joule. D. Newton
33) In the power plant based on nuclear energy _______ is used to rotate the
generator.
A. Steam turbine. B.air turbine C.water turbine D.none of these.
34) When a neutron is bombarded on an atom of uranium _______ neutrons
generated in this process.
A. 1. B. 2. C. 3. D. 4.
35) Kinetic energy in flowing water drives _________ to generate electricity.
A. watermill. B. windmill C. turbines. D. generator.
36) Wind turbines with capacity are commercially available.
A. 1 KW to 7 MW. B. 1 KW to 7 KW C. 1 KW to 7000 W D. 1 W to 7 MW
37) Solar photovoltaic cells convert the solar radiation energy directly into _____
energy.
A. electrical B. potential C. kinetic. D. heat.
38) A silicon solar cell of dimension 1 sq.cm. generates current of about ______.
A. 50 mA B. 30 mA C. 50 A D. 30 A
39) A silicon solar cell of dimension 1 sq.cm. generates ______ potential
difference .
A. 0.1 V. B.0.5 V. C. 0.1 mV. D. 0.5 mV.
40) In nuclear power plants, neutrons are bombarded on atoms of ______.
A. uranium-236. B. barium C. krypton. D. premium-235.
41)My body is soft and slimy,hence I am referred as ______ .
A. mollusca B. echinodermata C. annelida D. arthropoda
42) Which of the following is a hermaphrodite animal?
A. doliolum B. scorpion C. centipede D. cockroach
43) Which of the following animals can regenerate it's broken body parts ?
A. Frog B. Starfish C. Sparrow D. Pigeon
44) Which of the following is a warm blooded (homeothers) animal?
A. Bat B. Tortoise C. Wall lizard D. Crocodile
45) My body is _______ shaped to minimize water resistance.
A. pointed B. spindle C. cartilaginous D. flat
46) _______ animal is called a friend of farmers.
A. Rabbit B. Cat C. Leech D. Earthworm
47) Which of the following animals has a hard calcareous shell?
Answers
Answered by
2
Answer:
46.earth worm
45.cartilaginous
44. crocodile
43.starfish
42.doiolum
Answered by
2
Answer:
1) Principle of Electromagnetic induction was invented by the scientist Michael Faraday.
2) In the power plant based on nuclear energy Steam turbine is used to rotate the generator.
3) When a neutron is bombarded on an atom of uranium 2 neutrons generated in this process.
4) Kinetic energy in flowing water drives turbines to generate electricity.
Explanation:
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