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WorksheetsSatellite Technology
Total questions: 49
Worksheet time: 49mins
Name
Class
Date
1.
Any object that revolves around a larger object in space is called
a)
Launch Vehicles
b)
Satellite
c)
Liquid rocket
d)
Solid rocket
2.
The path about which the satellite repeatedly travels is called ____________
a)
interplanetary orbit
b)
transfer orbit
c)
Orbit
d)
trajectory
3.
The world's first artificial satellite is
a)
Sputnik 1
b)
Aryabhatta
c)
INSAT-1A
d)
Explorer 1
4.
The communication satellites are used in
a)
International telephony
b)
Television broadcasting
c)
Internet
d)
All the above
5.
Remote sensing is a technology used for obtaining information about
a)
information about objects or areas from a distance
b)
International telephony
c)
Television broadcasting
d)
All the above
6.
Navigation satellite systems are based on ___________
a)
Einstein's relativity theory
b)
Doppler effect
c)
First law of thermodynamics
d)
None of the above
7.
Earth is shape is __________
a)
Perfectly spherical
b)
geoid
c)
cannot be determined
d)
both 1 and 2
8.
Military satelite generally uses ______
a)
low frequency bands
b)
medium frequency bands
c)
very low frequency bands
d)
powerfull frequency bands
9.
GPS system falls under the category of __________
a)
Military satellites
b)
Scientific Satellites
c)
Weather Satellites
d)
Navigation satellites
10.
Motion of different planets of the solar system around the sun is __________
a)
Interplanetary orbit
b)
trajectory
c)
transfer orbit
d)
orbit
11.
The motion of natural and artificial satellites around Earth is governed by
a)
centripetal and centrifugal forces
b)
centripetal force alone
c)
centrifugal force alone
d)
None of the above
12.
When the eccentricity is ____ the orbit becomes circular.
a)
0.5
b)
1
c)
zero
d)
0.25
13.
Molniya Orbit is __________
a)
Zero eccentric
b)
Zero inclined
c)
Circular orbits
d)
Highly eccentric, inclined and elliptical orbits
14.
These satellites, being closer to the surface of the Earth, have much ________ orbital periods
a)
higher
b)
shorter
c)
cannot be determined
d)
None of the above
15.
MEO Satellites orbit at a distance of approximately above the surface of the Earth
a)
below 1000 km
b)
above 36000 km
c)
cannot be determined
d)
10,000 to 20,000 km
16.
A ____________ is a orbit with an altitude entirely above that of a geosynchronous orbit
a)
GEO
b)
HEO
c)
LEO
d)
MEO
17.
A geosynchronous Earth orbit is a prograde orbit whose orbital period is
a)
equal to Earth’s rotational period
b)
not equal to Earth’s rotational period
c)
lesser than Earth’s rotational period
d)
higher than Earth’s rotational period
18.
In geosunchronous orbit, the orbit plane and equatorial plane _________
a)
should not be same
b)
are highly varies
c)
cannot be determined
d)
are same
19.
The height of geosynchronous orbit is about ______________ above the surface of the Earth
a)
16000 km
b)
35 786 km
c)
2000 kmm
d)
3200 km
20.
The orbital period for geosynchronous orbit should be ___________
a)
12 hours
b)
6 hours
c)
36 hours
d)
23 hours 56 minutes
21.
The satellite motion for geosynchronous orbit should be
a)
west to east
b)
east to west
c)
south to north
d)
north to south
22.
The helio-synchronous orbit is also called as ___________
a)
geosynchronous orbit
b)
sun-synchronous orbits
c)
geostaionary orbit
d)
None of the above
23.
Spin-stabilized satellites are generally __________ in shape
a)
box
b)
non-cylindrical
c)
cylindrical
d)
None of the above
24.
For maximum stability, the satellite should be spun about its _______
a)
minor axis
b)
vernal equinox
c)
azimuth axis
d)
major axis
25.
The antenna of the satellites are usually placed in the ____________
a)
direction of sun
b)
de-spun platform
c)
spinning platform
d)
None of the above
26.
The satellite body is generally _______ for three-axis stabilized satellites
a)
cylindrical
b)
non-cylindrical
c)
spheroid
d)
box shaped
27.
Spin-stabilized satellites are _______ than three-axis stabilized satellites.
a)
simpler in design and less expensive
b)
complex in design
c)
highly expensive
d)
None of the above
28.
What causes most of the atmosphere’s molecules to be close to the earths surface?
a)
radiation
b)
Force of gravity
c)
solar wind
d)
plasmas
29.
Which orbit would have the more density?
a)
GEO
b)
HEO
c)
MEO
d)
LEO
30.
Outer Van-Allen radiation belt is a zone at ____________ from earth surface
a)
less than 160 km
b)
13,000 to 60,000 km
c)
less than 1000 km
d)
5000 km
31.
Atmospheric Drag in orbit can cause ________
a)
orbital decay
b)
orbital acceleration
c)
injeciton velocity
d)
escape velocity
32.
The solar wind is an outward flux from the Sun causes ____________
a)
vaccum
b)
outgassing
c)
cold welding
d)
solar radiation
33.
_________________ carry payloads from the Earth’s surface into outer space
a)
International space station
b)
Antenna
c)
Launch Vehicles
d)
Platform
34.
___________inject the payload in a orbit
a)
Launch vehicle
b)
Platform
c)
International space station
d)
Antenna
35.
Expendable launch vehicles can be used ____________
a)
only once and their components are not recovered after launch
b)
several times and their componentscan be recovered after launch
c)
two times
d)
None of the above
36.
_____ designed to be recovered intact and used again for subsequent launches.
a)
expendable launch vehicles
b)
reusable launch vehicles
c)
multi-stage rockets
d)
payload
37.
Liquid rocket launch vehicles stores __________
a)
fuel only
b)
fuel and oxidiser combinedly
c)
oxidiser only
d)
fuel and oxidiser separately
38.
The International Space Station is revolving around the earth in which orbit
a)
HEO
b)
MEO
c)
LEO
d)
GEO
39.
In expandable launch vehicles, after the exhaustion, the stage will _________
a)
fall back to earth
b)
move in space
c)
orbit around earth
d)
not separate
40.
Small launch vehicle can put ___________ of payload into low earth orbit
a)
1000 kg -2000 kg
b)
10 000 kg
c)
less than 2000 kg
d)
more than 5000 kg
41.
Large launch vehicle can put ____________ of payload into low earth orbit
a)
1000 kg
b)
5000 kg
c)
2000 kg -5000 kg
d)
5000 kg - 10000 kg
42.
Heavy launch vehicle can put ____________ of payload into geostationary transfer orbit
a)
1000 kg
b)
5000 kg
c)
1000 kg -2000 kg
d)
more than 5000 kg
43.
The launch vehicle needs to accelerate the payload to a velocity in excess of _________ in order to launch it into an Earth orbit
a)
5000 km per hour
b)
28 000 km per hour
c)
1000 km per hour
d)
3000 km per hour
44.
If the velocity of injection is in excess of 28 000 km per hour the satellite will _________
a)
launch to moon
b)
launch to mars
c)
launch it into an Earth orbit
d)
fall back to earth
45.
If the velocity of injection is in excess of _________ payload is Mars or the moon.
a)
40 000 km per hour
b)
5000 km per hour
c)
28 000 km per hour
d)
1000 km per hour
46.
If the velocity of injection is in excess of 40 000 km per hour payload ___________
a)
can go to Mars or the moon
b)
will be in earth orbit
c)
fall back to earth
d)
None of the above
47.
The launch system includes _____
a)
the launch vehicle
b)
the launch pad
c)
other infrastructure
d)
all the above
48.
_________ can spin in both directions
a)
Solar cells
b)
Reaction wheels
c)
Momentum wheels
d)
Antenna
49.
____________ orbit will always have sun light
a)
Geosynchronous Earth orbit
b)
Sun-synchronous Orbit
c)
LEO
d)
HEO
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