Consider the following statements:
1. Ballistic missiles are jet-propelled at subsonic speeds throughout their fights, while cruise missiles are rocket-powered only in the initial phase of flight.
2. Agni-V is a medium-range supersonic cruise missile, while BrahMos is a solid-fuelled intercontinental ballistic missile.
Which of the statements given above is/are correct?
Prelims
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Science and Technology › Defence
Science and Technology › Defence
Options
Answer
(D)
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Science and Technology › Genetics,Biotechnology
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Science and Technology › Nanotechnology,Carbon
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Science and Technology › PhysicsXGeneral
Science and Technology › PhysicsXGeneral
Consider the following actions:
1. Detection of car crash/collision which results in the deployment of airbags almost instantaneously
2. Detection of accidental free fall of a laptop towards the ground which results in the immediate turning off of the hard drive.
3. Detection of the tilt of the smart phone which results in the rotation of display between portrait and landscape mode
In how many of the above actions is the function of accelerometer required?Options
Answer
(C)
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Science and Technology › Renewable Energy Technology
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Science and Technology › Renewable Energy Technology
With reference to green hydrogen, consider the following statements:
1. It can be used directly as a fuel for internal combustion.
2. It can be blended with natural gas and used as fuel for heat or power generation .
3. It can be used in the hydrogen fuel cell to run vehicles.
How may of the abvoe statements are correct?Options
Answer
(C)
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Science and Technology › Space ProgramsXIntl
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Science and Technology › SpaceXTheory
Science and Technology › SpaceXTheory
Consider the following pairs:
Objects in space Description
1. Cepheids : Giant clouds of dust and gas in sapce
2. Nebulae : Stars which brighten and dim periodically
3. Pulsars : Neutron stars that are formed when massive stars run out of fuel and collapse
How many of the above pairs are correctly matched?Options
Answer
(A)
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Science and Technology › Specific Diseases