1. Select the first communication satellite which achieved geo-synchronous orbit, i.e., it stayed fixed over a point on the earth?

    Intelsat - IV

    Telstar - 1

    Relay - 1

    Syncom - 2

2. What is the minimum speed needed for a satellite to stay in an orbit around the earth?

    4600 metres per second.

    5600 metres per second.

    6600 meters per second.

    7600 meters per second.

3. What is the basic element in most guidance systems?

    Flight controls.

    Sensors.

    Computer.

    All

4. At what altitude above the earth, is the orbit of a satellite very stable?

    160 km

    100 km

    60 km

    10 km

5. If a payload, such as, a satellite, has to go into an orbit around the earth, the rocket carrying it must acheve:

    Terminal velocity

    Circular velocity

    Escape velocity

    All

6. What holds the payload in a rocket?

    Nose cone

    Fuel tank

    Rocket engine

    Instrument section

7. Who worked out the detailed plan for a space station for the first time?

    E.E.Hale

    Hermann Oberth

    Hermann Noordung

    Gerald O' Neil

8. What is used for stablizing a space capsule for landing on a heavenly body?

    Drogue

    Steering jet

    Retro-rocket

    All

9. Which is the heaviest part of a rocket?

    Roct motor

    Fuel Tank

    Nose cone

    Combustation chamber

10. What will be the purpose of a space tug?

    Carry men and equipment from earth to an orbit in space.

    Carry men and equipment from a space station to the moon.

    Carry men and equipment from one orbit to another.

    All

11. What propellants does the cryogenic engine made in India use for space flights?

    Liquid hydrogen

    Liquid oxygen

    Liquid nitrogen

    Liquid hydrogen and oxygen