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Fluid Hammer Effect

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About this collection

MINTRA CET includes short topic-based sets such as incident investigation, accommodation safety, anchoring operations and firefighting. Study an individual module, then review your mistakes in your account.

“MINTRA CET — Fluid Hammer Effect” contains 5 questions across 1 collection.

Learning

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Exam

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Sample questions and answers

These examples come from the published collection. Choose Learning to study questions in sequence, or Exam to check your knowledge.

What is the fluid hammer effect?

One correct answer

  • The sudden increase in pressure inside a pipe.✓ Correct answer
  • The sudden decrease in pressure inside a pipe.
  • The use of high-pressured water to clean inside a pipe.
  • The use of high-pressure steam to clean inside a pipe.
What are some of the possible effects of fluid hammer?

Multiple correct answers

  • Damage to pumps, valves and filters.✓ Correct answer
  • Chemical and oil cargo contamination.✓ Correct answer
  • Fractured pipework.✓ Correct answer
  • Damage to ballast water tanks.
What are common causes of fluid hammer?

Multiple correct answers

  • Rapid manual valve opening or closing.✓ Correct answer
  • Too high-speed settings on remotely operated valves.✓ Correct answer
  • Overuse of swing valves.
  • Closed discharge valves.
How can you prevent the risk of a slug forming in compressed air systems?

One correct answer

  • Open the inlet valve slowly.✓ Correct answer
  • Open the inlet valve quickly.
Which type of fluid hammer is typically encountered within ballast water, cargo and engine cooling systems?

One correct answer

  • Hydraulic shock.✓ Correct answer
  • Differential shock.
  • Thermal shock.
  • Piston shock.

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