GTU BE/B.Tech 2019 Winter Question Papers || Gujarat Technological University
Subject Name: Space Dynamics
Time: 02:30 PM TO 05:00 PM
Subject Code: 2180103
GUJARAT TECHNOLOGICAL UNIVERSITY
--- Content provided by FirstRanker.com ---
BE - SEMESTER- VIII (New) EXAMINATION — WINTER 2019Subject Name: Space Dynamics
Time: 02:30 PM TO 05:00 PM
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
--- Content provided by FirstRanker.com ---
| Q.1 | (a) | Is there gravity in space? Justify. | 03 |
| (b) | Explain Newton’s law of gravitation in detail. | 04 | |
| (c) | Define Space. Classify types of space vehicles. | 07 | |
| Q.2 | (a) | Explain Mechanics of Circular Orbit. | 03 |
| (b) | State and Prove Kepler’s 3™ law. | 04 | |
| (c) | With neat sketch explain different types of space trajectories. | 07 | |
| OR | |||
| (a) | Explain The Two body problem. | 07 | |
| (b) | State and Prove Kepler’s 2 law. | 03 | |
| (c) | Explain Zero potential energy configurations. | 04 | |
| Q.3 | (a) | Derive Orbit equation. | 07 |
| OR | |||
| (b) | What is Escape Velocity? Calculate the same for an object escaping from the earth’s surface. | 03 | |
| (c) | Write a note on Elliptic orbit. | 04 | |
| Q.3 | (a) | With neat sketch explain The Hohmann transfer-ellipse. | 07 |
| Q4 | (a) | What is Attitude maneuvering? | 03 |
| (b) | Why the stability of Satellite is very important? Write methods for stability control of satellites. | 04 | |
| (c) | What are the major sources of Attitude disturbance torques? Explain any one in detail. | 07 | |
| OR | |||
| Q4 | (a) | Establish a relation between Impulse and change in momentum. | 03 |
| (b) | What do you mean by Dual spin satellite? Explain the functions of Rotor & Platform with labeled diagram. | 04 | |
| (c) | Write a short note on Yo-Yo Mechanism. | 07 | |
| Q.5 | (a) | What is (a) Re-entry corridor (b) Overshoot boundary & (c) Undershoot boundary? | 03 |
| (b) | How Re-entry is more important in (a) Ballistic missiles (b) Planetary entry probes & (c) Manned spacecraft. | 04 | |
| (c) | Explain Motion of Re-entry objects using Motion Analysis Process (MAP). | 07 | |
| OR | |||
| Q.5 | (a) | How re-entry mission is designed? Explain using block diagram. | 03 |
| (b) | What are the functions of (a) Heat Shield & (b) Back Shell? | 04 | |
| (c) | Compare a study between Sphere, Cone & Blunted cone. And prove using parameters like Deceleration, Heat rate, Accuracy why Blunted cone shape is preferable for Re-entry vehicle design. | 07 |
Date: 21/11/2019
Total Marks: 70
--- Content provided by FirstRanker.com ---
This download link is referred from the post: GTU BE/B.Tech 2019 Winter Question Papers || Gujarat Technological University
--- Content provided by FirstRanker.com ---