Tag: universe and space science

Questions Related to universe and space science

The International space Station is currently under construction. Eventually, simulaced earth gravity may become a reality on the space station.What would the gravitational  field through the central axis be like under these conditions?

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  1. zero

  2. $0.25 g$

  3. $0.5 g$

  4. $0.75 g$

Show answer
Correct Option: A

When the temperature raised to $50^0C$, how did scientist adjust its temperature?

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  1. The temperature was brought down by about $10^\circ C$ by rotating the spacecraft about 20 degrees and switching off some of the instruments

  2. The temperature was brought down by about$ 0^\circ C$ by removing the parts spacecraft.

  3. The temperature was brought down by about $30^\circ C$ by rotating the spacecraft about 100 degrees and by removing some of the instruments

  4. None of the above

Show answer
Correct Option: A
Explanation:

Temperature was bought down by about $10°C$ by rotating the spacecraft $20$degrees and switching of some of the instruments.

Which of the following is an Air-to-Air Missile?

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  1. Astra

  2. Aakash

  3. Prithvi

  4. None of these

Show answer
Correct Option: A
Explanation:

Astra is an all weather beyond-visual-range air-to-air missile developed by the DRDO, India.

What should be done to successfully convert the format of an image from BMP to JPEG ?

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  1. Compress the file

  2. Rename the image

  3. Use the save as command

  4. Change the image file extension

Show answer
Correct Option: D
Explanation:

Open paint and then open your BMP file, Next click on file and then save as. In newer version of paint that have the ribbon interface click on the title menu icon, in the Save As type dropdown choose the JPEG as the file format.

Geo stationary satelites revolves at:

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  1. Any height

  2. Fixed height

  3. Height above pole

  4. height which depends upon its mass

Show answer
Correct Option: B
Explanation:

Geo stationary satellite revolves at fixed height. A Geo stationary satellite is an earth orbiting satellite which is placed at an altitude of approximately 35,800 kms directly over the equator, that revolves in the same direction the earth rotates.

Validation of programs is used to check that data is

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  1. In right format

  2. Of right type

  3. Within possible value ranges

  4. All of above

Show answer
Correct Option: D
Explanation:

Data validation is a process of ensuring data have undergone data cleansing to ensure they have data quality i.e they are both correct and useful. Apart from data cleansing the data must be within possible value range that ensures smooth and effective functioning of the space satellite. Hence all the three option are correct.

Why would a switch be used in a network in preference to a HUB ?

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  1. To reduce the network traffic

  2. To prevent the spread of all viruses

  3. To connect a computer directly to the internet

  4. To manage password security at the work station

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Correct Option: A
Explanation:

A switch can be used in a network in preference to HUB because a switch helps far better than a HUB to reduce the network traffic.

Equipment and programs used to process raw data into information are called

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  1. Information

  2. Information technology

  3. Information processes

  4. Raw data

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Correct Option: B
Explanation:

Information technology is the study of the use of computers to store, retrieve, transmit and manipulate data(or information). It is considered to be a subset of Information and Communication Technology(ICT).

Vikram Sarabhai played a major role in setting up of which of the following institutes ?

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  1. Indian Institute of Technology (IIT), Bombay

  2. Indian Institute of Management (IIM), Ahmedabad

  3. Indian Institute of Management (IIM), Bangalore

  4. None of these

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Correct Option: B
Explanation:

Vikram Sarabhai $\left( { 12 }^{ th }August,1919-{ 30 }^{ th }December,1971 \right) $ founded the $IIM,Ahmedabad$.

Which of the instruments used in chandrayaan were not indegenously built?

physics universe and space science human beings in space our pride - iii our scientist

  1. HEX

  2. LLRI

  3. SIR-2

  4. MIP

Show answer
Correct Option: C
Explanation:

Spectrometer Infrared -2 (SIR-2) is an infrared spectrometer build for remote sensing of the lunar surface. SIR-2 represents german scientific contribution to the Indian chandrayaan lunar mission. The project is funded by the Max Planck society and partly by European space agency.