Circular Orbits - 2 MCQ

Test your knowledge with important Circular Orbits - 2 MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Circular Orbits - 2 MCQs at Bissoy

• What is the specific energy of a LEO satellite of specific angular momentum of 10,000 km2/s?
  ক

  -149.21 km2/s2

  খ

  -912.01 km2/s2

  গ

  -794.41 km2/s2

  ঘ

  -49.25 km2/s2
• A satellite is in an orbit with a velocity of 3.156 km/s, radius of 3,000 km and eccentricity of 0. What is the specific angular momentum of the satellite?
  ক

  126,269.5 km2/s

  খ

  16,269.4 km2/s

  গ

  9,468 km2/s

  ঘ

  14,121.4 km2/s
• Describe the equation of the circular orbit in cartesian coordinates. Given, a point is P(6,054.78,6492.95) along the orbit in cartesian coordinates. Assume the centre of larger body to be the origin O(0,0).
  ক

  (x – 6,054.78)2 + (y – 6,492.95)2 – 8,878 = 0

  খ

  x2 + y2 – 12,548 = 0

  গ

  x2 + y2 – 8,878 = 0

  ঘ

  x2 + y2 – 78,818,884 = 0
• What is the specific energy of an asteroid in a circular orbit around the Sun of radius 4.8 AU. The gravitational parameter of Sun is 1.327124 x 1011 km3/s2.
  ক

  -2.705 m2/s2

  খ

  92.405 km2/s2

  গ

  -2.705 x 10-3 m2/s2

  ঘ

  -2.705 x 10-3 km2/s2
• Velocity of a satellite in circular orbit is _____________________ the radius of orbit.
  ক

  directly proportional to

  খ

  inversely proportional to

  গ

  inversely proportional to square root of

  ঘ

  inversely proportional to square of
• Velocity of a satellite in a circular orbit is dependent on radius of orbit, mass of the earth and true anomaly.
  ক

  True

  খ

  False
• What is the time period of revolution of a satellite around Venus if its specific angular momentum is 18,919 mi2/s. The orbit of the satellite is circular. Gravitational parameter of Venus is 77,937.75 mi3/s.
  ক

  1.809 hours

  খ

  1.946 hours

  গ

  2.01 hours

  ঘ

  22 hours
• What is the escape velocity of a satellite around Venus if its specific angular momentum is 47,862.73 km2/s? The orbit of satellite is circular and gravitational parameter of Venus is 324,859 km3/s2.
  ক

  10.36 km/s

  খ

  11.11 km/s

  গ

  9.599 km/s

  ঘ

  9.45 km/s
• How much is the delta-v required to put a satellite in circular orbit of altitude 3,000 km over Mars surface. The satellite is travelling initially at 27 km/s. Radius and gravitational parameter of Mars are 3,389.5 km and 42,828 km3/s2.
  ক

  24.41 km/s

  খ

  21.11 km/s

  গ

  15.8 km/s

  ঘ

  22.67 km/s