Principle check: jet propulsion used for ships and aircraft Statement: The principle of jet propulsion is used in driving ships and aeroplanes. Assess the correctness of this engineering statement. Choose the correct option.
Mechanical Engineering
Hydraulic Machines
Difficulty: Easy
Choose an option
-
ATrue — the statement is correct
-
BFalse — the statement is incorrect
-
CTrue only for aircraft, not for ships
-
DTrue only for ships, not for aircraft
Answer
Correct Answer: True — the statement is correct
Explanation
ConceptJet propulsion relies on Newton’s third law: thrust is generated by expelling mass at high velocity in the opposite direction.
ApplicationsAircraft: turbojets/turbofans eject high-velocity gases to produce thrust.Ships/boats: water-jets eject a high-speed water stream to push the craft forward (waterjet propulsion).
Final AnswerTrue — the statement is correct.