What is the Kuiper Belt? A. A region of hot plasma around Jupiter B. A belt of radiation near Earth C. A disc of icy bodies beyond Neptune D. The rings of Saturn Explanation: The Kuiper Belt is a region of small icy bodies beyond Neptune's orbit.
Which space probe provided detailed images of Saturn's rings and moons? A. Voyager 1 B. Hubble Telescope C. Cassini D. Sputnik Explanation: Cassini orbited Saturn and studied its rings and moons in detail.
What is a light-year a measure of? A. Time B. Mass C. Distance D. Brightness Explanation: A light-year is the distance light travels in one year.
What is a pulsar? A. A type of black hole B. A rotating neutron star emitting beams of radiation C. A supermassive galaxy D. A comet Explanation: A pulsar is a highly magnetized, rotating neutron star that emits beams of electromagnetic radiation.
In wheeled mobile robots, what is 'skid steering'? A. Steering using a separate pivot wheel B. Rotating each wheel at different speeds to turn C. Fixed steering angle D. Flying mode Explanation: Skid steering turns by differentially driving wheels on each side.
What is the main benefit of using a parallel kinematic robot structure? A. Lower cost B. Higher stiffness and precision for certain tasks C. Requires fewer motors D. It can hover Explanation: Parallel structures, such as delta robots, provide high stiffness and precision for tasks like pick-and-place.
How does inverse kinematics differ from forward kinematics in robotics? A. Inverse computes joint angles from end position; forward does opposite B. Inverse encrypts control data; forward decrypts it C. Inverse is used for wheels; forward for arms D. They are the same Explanation: Inverse kinematics calculates joint parameters for a given end-effector pose; forward kinematics computes end pose from joint angles.
What is 'degrees of freedom' (DOF) in the context of robot manipulators? A. The number of axes the end-effector can move along or rotate B. Number of sensors onboard C. Robot's weight in kgs D. Battery capacity Explanation: DOF refers to the number of independent movements (translations/rotations) possible.
Which of these best describes an autonomous mobile robot (AMR)? A. A stationary assembly robot B. A robot that navigates dynamic environments without external control C. A robot that requires constant human teleoperation D. A drone that only follows GPS Explanation: AMRs can navigate and make decisions autonomously in changing environments.
In robot path planning, what is the role of the A* (A star) algorithm? A. Mapping 3D environment B. Optimal path search on a graph of possible moves C. Real-time motion control D. Image processing Explanation: A* is a pathfinding algorithm that efficiently finds optimal paths on graphs or grids.