Tag: india’s space programmes

Questions Related to india’s space programmes

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

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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

Show answer
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).

Transponder is a device in satellites to: 

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  1. correct the orbit of satellite

  2. photograph features of the Earth

  3. receive and broadcast audio and video signals

  4. spy on criminals

Show answer
Correct Option: C
Explanation:

To receive and broadcast audio and video signals
Transponders basically receive and transfer signals in satellite communication. Hence, it can be used to broadcast received audio and video signals.

The process of acquiring information about an object or phenomenon without making actual physical contact within, as opposed to onsite observation is called :
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  1. Remote Sensing

  2. Actuation

  3. Transducing

  4. None of the above

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Correct Option: A
Explanation:

Remote Sensing is the process of acquiring Information about an object or phenomenon without making actual physical contact within, as opposed to onsite observation.

This often requires the use of aerial sensor technologies.

A celestial body that revolves around a planet is known as _____. 

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  1. $Constellation$

  2. $Satellites$

  3. $Sun$

  4. None of these

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Correct Option: B

The planet having the largest number of satellites amongst the following is

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  1. Jupiter

  2. Saturn

  3. Uranus

  4. Mars

Show answer
Correct Option: A
Explanation:

Jupiter is having largest no. of satellites.

ENERGY OF AN ORBITING SATELLITE
In motion of an object under the gravitational influence of another object. Which of the following quantities is not conserved?

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  1. Angular momentum

  2. mass of an object

  3. Total mechanical energy

  4. Linear momentum

Show answer
Correct Option: D
Explanation:

While considering the motion of an object under the gravitational influence of another object, angular momentum and total mechanical energy are conserved.Linear momentum is not conserved