Which of the following is NOT a segment of the GPS system?

• Space segment

• Control segment

• User segment

• Terrestrial segment

What is the main purpose of Differential GPS (DGPS)?

• To track satellites

• To increase signal speed

• To improve positioning accuracy

• To control drone altitude

Which Indian satellite-based augmentation system enhances GPS accuracy?

• INSAT

• GSLV

• GAGAN

• IRNSS

What type of coordinate system is used in GPS surveying?

• Grid system

• Reference coordinate system

• Elevation system

• Benchmark system

Which component is NOT essential for drone surveying?

• Flight planning software

• DGPS markers

• Drone platform

• Traffic light controller

Which method is commonly used in drone-based mapping?

• Optical triangulation

• Sonar mapping

• Photogrammetric mapping

• Magnetic resonance imaging

What is the function of post-processing in drone surveying?

• Controlling the drone speed

• Converting raw images into accurate maps

• Scheduling drone flights

• Calibrating drone batteries

Which type of GPS positioning uses a known reference point to correct measurements?

• Absolute positioning

• Relative positioning

• Differential positioning

• Static positioning

What is a key advantage of using drones in surveying?

• Manual data collection

• Higher operational costs

• Quick and accurate data capture

• Use of outdated maps

Remote sensing and GIS are primarily used in surveying to:

• Increase surveying time

• Reduce computational tasks

• Analyze spatial data and mapping

• Eliminate digital tools