Which one of the following statements is correct regarding the GPS satellites ?

Related Mcqs:

1. Orbital radius of GPS satellites is approximately ___________________?

   A. 15,200 km
   B. 26,600 km
   C. 18,400 km
   D. 36,000 km

2. Which one of the following statements regarding remote sensing is correct ?

   A. The interaction of the electromagnetic radiation with the target
   B. The emission of electromagnetic radiation from the target
   C. Both A. and B.
   D. Neither A. nor B.

3. Which one of the following residual biases involves the GPS accuracy ?

   A. Satellite dependent biases due to uncertainty in the orbital parameters of the satellite
   B. Receiver -dependent biases due to clock stability with line
   C. Signal propagation biases due to the sphere and troposphere propagation
   D. All the above

4. The various stages occuring in GPS system are described below ?

   1. Generation of an output to the user
   2. Detection of the GPS signals
   3. Processing the data in the built-in-computer
   4. Decoding the GPS signal

   The correct sequence of the stages is?

   A. 1, 2, 3, 4
   B. 2, 3, 4, 1
   C. 2, 4, 3, 1
   D. 3, 1, 2 , 4

5. The normal altitude of GPS satellite is about________________?

   A. 16,200 km
   B. 20,200 km
   C. 24,400 km
   D. 36,100 km

6. The code based GPS receivers are generally used for_________________?

   A. Vehicle tracking
   B. Land navigation
   C. Trans movement
   D. All of these

7. The GPS space segment consists of Navigation Satellite Timing and Ranging whose number is_______________?

   A. 8
   B. 12
   C. 16
   D. 24

8. In GPS, receivers used are___________________?

   A. Electronic clocks
   B. Atomic clocks
   C. Quartz clocks
   D. Mechanical clocks

9. The most widely used antenna in GPS is_______________?

   A. Parabolic antenna
   B. Microstrip antenna
   C. Horn antenna
   D. Slotted antenna

10. Consider the following statements regarding the satellite imaging_________________?

    1. The satellite orbit is fixed in the inertial space
    2. During successive across-track imaging, the earth rotates beneath the sensor
    3. The satellite images a skewed area
    Which one of the following statements is/are correct?

    A. 1, 2, 3
    B. 1, 3
    C. 2, 3
    D. 1, 2