Tag: launching of an artificial satellites around the earth

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Questions Related to launching of an artificial satellites around the earth

Multiple choice physics universe and space science launching of an artificial satellites around the earth launching of satellite india’s space programmes

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

  1. Compress the file

  2. Rename the image

  3. Use the save as command

  4. Change the image file extension
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

Multiple choice physics universe and space science launching of an artificial satellites around the earth launching of satellite india’s space programmes

Geo stationary satelites revolves at:

  1. Any height

  2. Fixed height

  3. Height above pole

  4. height which depends upon its mass
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

Multiple choice physics universe and space science launching of an artificial satellites around the earth launching of satellite india’s space programmes

Validation of programs is used to check that data is

  1. In right format

  2. Of right type

  3. Within possible value ranges

  4. All of above
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

Multiple choice physics universe and space science launching of an artificial satellites around the earth launching of satellite india’s space programmes

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

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

Multiple choice physics universe and space science launching of an artificial satellites around the earth launching of satellite india’s space programmes

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

  1. Information

  2. Information technology

  3. Information processes

  4. Raw data
Reveal answer Fill a bubble to check yourself
B Correct answer
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).

Multiple choice evs space missions space research and satellites artificial satellites space missions and artificial satellites launching of an artificial satellites around the earth launching of satellite india’s space programmes

Transponder is a device in satellites to: 

  1. correct the orbit of satellite

  2. photograph features of the Earth

  3. receive and broadcast audio and video signals

  4. spy on criminals
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

Multiple choice evs space missions space research and satellites artificial satellites space missions and artificial satellites launching of an artificial satellites around the earth launching of satellite india’s space programmes
The process of acquiring information about an object or phenomenon without making actual physical contact within, as opposed to onsite observation is called :

  1. Remote Sensing

  2. Actuation

  3. Transducing

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

Multiple choice evs space missions space research and satellites artificial satellites space missions and artificial satellites launching of an artificial satellites around the earth launching of satellite india’s space programmes

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

  1. $Constellation$

  2. $Satellites$

  3. $Sun$

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A celestial body that revolves around a planet is defined as a satellite (natural or artificial).

Multiple choice physics space missions launching of an artificial satellites around the earth launching of satellite india’s space programmes

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?

  1. Angular momentum

  2. mass of an object

  3. Total mechanical energy

  4. Linear momentum
Reveal answer Fill a bubble to check yourself
D Correct answer
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