Tag: science & technology

Questions Related to science & technology

The steam engine requires a _____, where water is turned into steam. Be sure this part does not build too much pressure!!
general knowledge science & technology

  1. griller

  2. boiler

  3. steamer

  4. evaporator

Show answer
Correct Option: B

In order to escape the gravity of the Earth, a spaceship must reach a velocity of:

general knowledge science & technology

  1. 550 m/s

  2. 5.5 km/s

  3. 11 km/s

  4. 110 km/s

Show answer
Correct Option: C
Explanation:

To solve this question, the user needs to know about the escape velocity of an object. Escape velocity is the minimum speed required for an object to overcome the gravitational pull of a celestial body and escape into space.

Now, let's go through each option and explain why it is right or wrong:

A. 550 m/s: This option is not correct. This velocity is too low for an object to escape Earth's gravitational pull. It is not sufficient to overcome the gravitational attraction of the Earth.

B. 5.5 km/s: This option is not correct. Although this velocity is faster than option A, it is still too low for an object to escape Earth's gravity. It is only the speed required to reach low Earth orbit.

C. 11 km/s: This option is correct. This is the minimum speed required for an object to escape Earth's gravitational pull. When an object reaches this velocity, it has enough kinetic energy to break free of the Earth's gravity.

D. 110 km/s: This option is not correct. This velocity is much higher than the escape velocity required to escape Earth's gravity. It is not necessary to reach such a high velocity to escape Earth's gravity.

Therefore, The Answer is: C

In an CRT or LCD monitor, the following three colors are used to form all of the other colors:

general knowledge science & technology

  1. yellow

  2. orange

  3. red

  4. blue

  5. violet

  6. green

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Correct Option: C,D,F

What is the Speed of light?
general knowledge science & technology

  1. 300,000 Mt/Sec

  2. 30000 Km/Sec

  3. 300,000 Km/Sec

  4. None of above

Show answer
Correct Option: C
Explanation:

To solve this question, the user needs to know the definition of the speed of light.

The speed of light is defined as the distance light travels in a vacuum per unit of time.

Now, let's go through each option and explain why it is right or wrong:

A. 300,000 Mt/Sec: This option is incorrect because "Mt" is not a standard unit of measurement for speed. Also, the correct value of the speed of light is 299,792.458 km/s, which is not equal to 300,000 Mt/Sec.

B. 30000 Km/Sec: This option is incorrect because the actual value of the speed of light is much greater than 30,000 km/s. The correct value is around 299,792.458 km/s.

C. 300,000 Km/Sec: This option is correct. The speed of light in a vacuum is approximately 299,792.458 km/s, which is rounded up to 300,000 km/s for convenience.

D. None of the above: This option is incorrect because Option C is the correct answer.

Therefore, the Answer is: C. 300,000 Km/Sec

E=MC^2 is given by :
general knowledge science & technology

  1. Newton

  2. Albert Einstein

  3. Archimedes

  4. None of the above

Show answer
Correct Option: B

Which of the following is not a type of Convex lens?
general knowledge science & technology

  1. Biconvex

  2. Plane Convex

  3. Positive Meniscus

  4. Negative Meniscus

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Correct Option: B

Voice travels faster in rainy season.

general knowledge science & technology

  1. True

  2. False

Show answer
Correct Option: A

AI Explanation

To answer this question, we need to understand the concept of how sound travels through different mediums.

In general, sound travels faster in solids and liquids compared to gases. This is because the particles in solids and liquids are closer together, allowing sound waves to propagate more easily.

During the rainy season, the air is often more humid. Humidity refers to the amount of water vapor present in the air. When the air is humid, it contains more water molecules, which can act as additional particles for sound waves to travel through. This can increase the speed of sound in the air, making it travel faster during the rainy season.

Therefore, the statement "Voice travels faster in the rainy season" is true. Option A is correct.

Roads should not be tilted towards center on turns.
general knowledge science & technology

  1. True

  2. False

Show answer
Correct Option: B

Which animal is also known as the "Painted dog"
general knowledge science & technology

  1. Wolf

  2. African Wild Dog

  3. Artic Fox

  4. Coyote

Show answer
Correct Option: B

Which is the world's largest Fish?
general knowledge science & technology

  1. Killer Whale

  2. Great White Shark

  3. Blue Whale

  4. Whale Shark

Show answer
Correct Option: D
Explanation:

To solve this question, the user needs to have knowledge of marine biology.

Now, let's go through each option and explain why it is right or wrong:

A. Killer Whale: Killer whales are not fish. They are actually the largest member of the dolphin family.

B. Great White Shark: Great white sharks are also not the largest fish in the world. They are one of the most well-known shark species but are not the largest.

C. Blue Whale: Blue whales are the largest animals on earth but they are not fish. They are mammals.

D. Whale Shark: This option is correct. Whale sharks are the largest fish in the world, growing up to 40 feet (12 meters) in length and weighing up to 47,000 pounds (21,500 kg). They are filter feeders and feed mainly on plankton.

The Answer is: D