Newton's Second Law of Motion

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Questions and Answers

What is the relationship between the acceleration of a body and the force causing it according to Newton's Second Law of Motion?

  • Acceleration is inversely proportional to the force causing it
  • Acceleration is directly proportional to the force causing it (correct)
  • Acceleration is independent of the force causing it
  • Acceleration is proportional to the square of the force causing it

What happens to the pendulum when the vehicle is accelerating?

  • It swings forward
  • It hangs vertically
  • It remains still
  • It swings backward (correct)

What is the purpose of an integrator circuit?

  • To filter out noise in electronic signals
  • To measure acceleration
  • To amplify electronic signals
  • To calculate velocity and distance (correct)

What is the result of integrating acceleration?

<p>Velocity (B)</p> Signup and view all the answers

What determines the direction of the pendulum's swing?

<p>The direction of acceleration (B)</p> Signup and view all the answers

What is the sensitive axis of an accelerometer?

<p>The axis of maximum sensitivity (B)</p> Signup and view all the answers

What is the primary purpose of using four or more satellites in GPS systems?

<p>To improve the accuracy of the system and provide precise altitude information (C)</p> Signup and view all the answers

What is the constant speed used in GPS calculations?

<p>300 000 000 metres per second (D)</p> Signup and view all the answers

What is the primary reason for using atomic clocks in GPS satellites?

<p>To provide accurate timing for signal emission (C)</p> Signup and view all the answers

Why is it not feasible to have atomic clocks in GPS receivers?

<p>Due to the high cost of atomic clocks (D)</p> Signup and view all the answers

What is the minimum number of satellites required for GPS calculations, if the receiver's altitude is known?

<p>Three satellites (A)</p> Signup and view all the answers

What is the principle used by GPS systems to determine the location of the receiver?

<p>Three-dimensional trilateration (B)</p> Signup and view all the answers

What is the primary reason for correct orientation of the RADALT antenna?

<p>To produce a directional radiated beam (C)</p> Signup and view all the answers

What happens when the receiver-transmitter is in the transmit mode?

<p>The receiver is disabled to prevent interference (D)</p> Signup and view all the answers

What is the purpose of the decision height (DH) annunciator on the RADALT indicator?

<p>To alert the pilot when the selected height is breached (D)</p> Signup and view all the answers

What is the typical mounting arrangement for RADALT systems in use today?

<p>Rack-mounted units (C)</p> Signup and view all the answers

What happens if the radar altitude is lost for a short period of time?

<p>The receiver-transmitter will continue to search for a period before energizing a fail flag on the indicator (B)</p> Signup and view all the answers

What is the purpose of the arrows marked on the RADALT antenna?

<p>To show the correct orientation of the antenna (D)</p> Signup and view all the answers

What is the range of an NDB with a daylight range of 600 miles over the sea, when located over unfavourable types of land?

<p>100 miles (A)</p> Signup and view all the answers

What can cause a change in bearing indications in mountainous areas?

<p>Reflection from the mountains (D)</p> Signup and view all the answers

What is the method of overcoming station interference?

<p>Using a receiver with high adjacent channel rejection ratio (D)</p> Signup and view all the answers

What type of interference occurs when an aircraft is near a thunderstorm?

<p>Static interference (A)</p> Signup and view all the answers

Why does an NDB's range vary greatly in different directions when located on the coastline?

<p>Due to the difference in environment over land and sea (C)</p> Signup and view all the answers

What type of wave can an NDB receive in mountainous areas?

<p>Both direct and reflected waves (D)</p> Signup and view all the answers

What is the primary advantage of using Area Navigation (RNAV) in aviation?

<p>Reduced flight time and fuel conservation by flying direct routes (D)</p> Signup and view all the answers

What is the function of the keypad in an RNAV computer?

<p>To enter relevant navigation information and waypoints (C)</p> Signup and view all the answers

What is the name of the navigation system that uses a combination of GPS, INS, and VOR/DME stations?

<p>Area Navigation (RNAV) System (D)</p> Signup and view all the answers

What is the term for a point in space established using a navigation system?

<p>Waypoint (D)</p> Signup and view all the answers

What is the name of the older RNAV computers?

<p>RNAV Transceiver Course-line Computer (CLC) (A)</p> Signup and view all the answers

How can waypoint parameters be entered in an RNAV computer?

<p>Using a keyboard on the front panel or from a portable magnetic card reader (C)</p> Signup and view all the answers

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