All Nations University - AFRICAN SPACE STATION PROJECT

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All Nations University - AFRICAN SPACE STATION PROJECT - EXAMINATION.

You have 30 questions to answer. Each question is 2 marks hence a total of 60 marks. To pass is to answer 23 questions correctly hence a pass mark of 46/60. ALL THE BEST !

Full Name ( as should appear on your award certificate) *

Your Country *

Your school or institution *

1) What is the full meaning of LEO orbit?

2 points

Least Earth Orbit

Low Earth Orbit

Line Earth Orbit

Little Earth Orbit

Clear selection

2) What is satellite pass prediction?

2 points

A prediction to know why a satellite will pass over your region

A prediction to know what type of data the satellite will transmit over your region

A prediction to know when a satellite will pass over your region

A prediction to know when you can see a satellite with your naked eyes.

Clear selection

3) Which of the following tools do you need to be able know when a particular satellite will pass over your region?

2 points

A satellite compass software

A satellite tracking software

A satellite data analysis software

A satellite owner's contact

Clear selection

4) What is the full meaning of AOS and LOS times in satellite tracking?

2 points

Approaching of satellite (AOS), Leaving of satellite (LOS)

Approaching of signal (AOS), Loss of signal (LOS)

Acquisition of signal (AOS) , Loss of signal (LOS)

Acquisition of satellite (AOS), Loss of satellite (LOS)

Clear selection

5) Which is the following could be a correct duration of a satellite pass (AOS to LOS) for a satellite in Low Earth Orbit (about 400 Km) over your country or school?

2 points

3 hours ( 3:00pm to 6:00pm)

7 minutes (3:00pm to 3:07pm)

40 minutes (3:00pm to 3:40pm)

A full day since the satellite is in Low Earth Orbit

Clear selection

6) Which of the following is the most important information you need to input into your satellite tracking software to be able to predict passes of different satellites?

2 points

Your location (Longitude, Latitude and Altitude)

Your tracking angles (Azimuth and Elevation)

Your available times ( AOS and LOS)

Your radio frequency

Clear selection

7) Which of the following predicted maximum satellite pass angles will you consider the best pass to receive the best signal from the satellite ?

2 points

Azimuth 45 deg, Elevation 45 deg.

Azimuth 280 deg, Elevation 65 deg.

Azimuth 30 deg, Elevation 88 deg.

Azimuth 340 deg, Elevation 15 deg.

Clear selection

8) Why do satellites in LEO revolve faster around the earth than satellites in higher altitudes?

2 points

Because we have to track them to receive data faster.

Because they were launched to space by a simple rocket.

Because they are much closer to the earth hence experiencing a greater gravitational pull

Because they have stronger motors and engines to move faster

Clear selection

9) What is the full meaning of SDR radio ?

2 points

Satellite Defined Radio

Space Defined Radio

Systems Defined Radio

Software Defined Radio

Clear selection

10) What is Doppler effect in satellite tracking?

2 points

The changing of satellite transmited frequency as it is approaching or departing.

The changing of your antenna frequency as you are moving to track the satellite.

The changing of your antenna frequency as satellite moving over your region.

The changing of the satellite frequency since the earth is round.

Clear selection

11) How will you deal with the Doppler effect when tracking a satellite in LEO?

2 points

By simply changing the type of antenna you are using.

By using a better tracking software to predict it next time.

By continually changing you receiver's frequency according to the Doppler frequency.

By changing your Azimuth and Elevation according to the Doppler Frequency.

Clear selection

12) What type of electromagnetic waves do satellites transmit?

2 points

Light waves

Radio waves

Sound waves

Internet waves

Clear selection

13) What is the full meaning of MHz in radio frequency?

2 points

Multi Hertz

Mega Hertz

Micro Hertz

None of the above

Clear selection

14) What is the full meaning of UHF in radio frequency ranges?

2 points

Ultra High Frequency

Under High Frequency

User High Frequency

User's Hearing Frequency

Clear selection

15) What is the full meaning of VHF in radio frequency ranges?

2 points

Visual High Frequency

Visual Hearing Frequency

Very High Frequency

Voltage High Frequency

Clear selection

16) What is the most basic definition of a satellite?

2 points

A bigger object that is close to a smaller object

A bigger object that goes around a smaller object

A smaller object that is very close to a bigger object

A smaller object that goes around a bigger object

Clear selection

17) Which of the following could be a reason why you did not receive any signal from a certain satellite?

2 points

The satellite was not transmitting any signal at all.

It was too late in the evening when we tracked.

It was too hot in the afternoon when we tracked.

It was too early in the morning when we tracked.

Clear selection

18) What is the total estimated budget for the satellite receiver system we will use in this project?

2 points

600 USD

60 USD

6,000 USD

About 1,000 USD only

Clear selection

19) Which of the following statement is TRUE ?

2 points

We can receive signals from satellites anywhere around our school by pointing our antenna to the sky.

We can only receive signals from satellites when we stand on the closest mountain to our school.

We need a very good internet connection in our school to receive signals from satellites.

We need to pay some money to All Nations University to be able receive signals from their satellite.

Clear selection

20) Which of the following statement is FALSE about the satellite receiver system we will use in this project?

2 points

We can receive some images from a satellite.

We can receive some weather and climate data from a satellite.

We can receive some scientific and experimental data from a satellite.

We can now receive internet services direclty from a satellite in our school.

Clear selection

21) Which of the following conductors will produce the best Yagi-Uda antenna with the same dimensions.

2 points

Stainless Steel

Aluminium

Copper

Bronze

Clear selection

22) Which of the following material can you use as the elements for your Yagi-Uda antenna?

2 points

Any dry wood we find in our school

The stainless steel material in a measuring tape

Any new plastic bowl

Any tinted glass

Clear selection

23) What is the full meaning of CW modulation in amateur satellite operation?

2 points

Created Wave modulation

Continuous Walk modulation

Created Walk modulation

Continuous Wave modulation

Clear selection

24) Which of the following is true about an Antenna?

2 points

An antenna is used to decode satellite signals.

An antenna is used to program satellites correctly.

An antenna is used to determine the frequency of a satellite.

An antenna is used to receive the electromagnetic waves sent from a satellite.

Clear selection

25) Which of the following statements is FALSE about Satellite communication under normal conditions?

2 points

The higher the pass elevation, the closer the satellite is to us.

At elevation 90 degrees, the satellite is most closest to us.

The closer the satellite is to us, the more likely to get a better signal.

We cannot receive any signal until the satellite is at elevation 90 degrees.

Clear selection

26) Which particular element of the Yagi-Uda antenna is directly connected to the radio ?

2 points

The driven element

The director elements

The main reflector element

The boom itself

Clear selection

27) What is the full meaning of ITU ?

2 points

International Telecommunication Union

International Telecommunication Unity

International Telephone Union

Institute of Telephone Units

Clear selection

28) About how many times will you have a good pass (good elevation) of a typical satellite in LEO over your region in a day?

2 points

About 30-40 times in a day

About 3-6 times in a day

Every 90 minutes everyday since it is moving very fast.

It is always available for tracking since it is very close to the earth.

Clear selection

29) Which of the following is a complete set for your satellite receiver system?

2 points

Antenna | SDR | Laptop

Antenna | Internet Router | SDR | Laptop

Antenna | MODEM| Router| SDR| Laptop

Antenna| Laptop

Clear selection

30) Bonus Question :

How will you grade the content of the online class

2 points

Good

Bad

Clear selection

31) Any comment about how the online class is conducted?

32) Which course did you or do you offer or wish to offer?

General Science

General Arts

Business

Visual Arts

Home Economics

Agriculture

Technical Studies

None of the above

Clear selection

33) If you are currently in senior high school, which form or grade are you?

Form 1

Form 2

Form 3

Not Applicable

Clear selection

34) Please provide your phone number here.

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