CHIEF ENGINEER Unit 12 Q4

1 / 11

Why is ultrasonic testing preferred for measuring hull thickness?

C) It requires no training to operate

B) It provides a visual color change for corrosion detection

D) It removes the need for dry docking

A) It is fast, accurate, and non-destructive

2 / 11

Which of the following areas is checked for leaks and structural integrity during a dry dock survey?

A) Communication room

D) Electrical wiring

C) Passenger lounges

B) Sea chest and associated valves

3 / 11

Which underwater component is likely to be inspected during a classification survey in dry dock?

D) Crew quarters

B) Propeller and shaft

C) Bridge navigation systems

A) Ballast control panel

4 / 11

What part of the anchoring system is inspected during a dry dock classification survey?

C) Life raft

B) Anchor and anchor chain

A) Bridge controls

D) Galley stove

5 / 11

Which tool is used to measure the steel hull thickness using a physical indentation method?

A) Ultrasonic tester

C) Hammer test

D) Ultrasonic gauge

B) Micrometer

6 / 11

What external part of the hull is typically inspected for signs of biofouling during a dry dock survey?

B) Hull surface below the waterline

C) Lifejackets

A) Steering wheel

D) Anchor chains

7 / 11

Which of the following systems related to hull stability is inspected during a dry dock classification survey?

C) Navigation lighting

A) HVAC system

D) Medical facilities

B) Ballast tanks

8 / 11

What would likely be inspected during a continuous hull survey to check for corrosion?

C) Crew uniforms

A) Deck furniture

D) Communication devices

B) Hull plating and welds

9 / 11

Which safety component is inspected on the hull during a dry dock survey?

A) Fire hoses

C) Kitchen appliances

D) Ship's log

B) Bilge keels

10 / 11

During a dry dock survey, what part of the vessel would be examined to check for possible water ingress and corrosion?

B) Rudder and associated fittings

C) Passenger cabins

D) Mess hall

A) Engine room

11 / 11

Which of the following methods is commonly used to determine the thickness of a steel hull?

B) Visual inspection only

A) Ultrasonic testing

D) Chemical testing

C) Temperature measurement

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