ASA 118 – Docking Clinic Examination
(2025/2026)
Official Mock Practice Exam for Revision
Content Covered by This Exam
• Docking procedures and safety protocols
• Dry dock and wet dock operations
• Hull inspection and defect identification
• Welding and cutting practices in dockyards
• Non-Destructive Testing (NDT) basics
• Corrosion types and control methods
• Ship structural components and terminology
• Alignment, blocking, and shoring principles
• Environmental and occupational safety
• Documentation, inspection reports, and quality control
PART A: MULTIPLE-CHOICE QUESTIONS (1–50)
Choose the most correct answer for each question.
1. The primary purpose of docking a vessel is to:
A. Improve fuel efficiency
B. Conduct underwater inspections and repairs
C. Increase cargo capacity
D. Test navigation systems
, B
Docking allows access to underwater hull areas for inspection, maintenance,
and repair.
2. Which type of dock is permanently attached to the shore?
A. Floating dock
B. Graving dock
C. Pontoon dock
D. Temporary dock
B
Graving docks are fixed structures excavated into the shore.
3. The main function of keel blocks during dry docking is to:
A. Prevent corrosion
B. Support the ship’s weight
C. Align the propeller
D. Reduce vibration
B
Keel blocks carry the majority of the vessel’s load.
4. Which component protects the hull from galvanic corrosion?
A. Sea chest
B. Bilge keel
C. Sacrificial anode
D. Rudder stock
C
Sacrificial anodes corrode instead of the hull material.
5. Prior to docking, stability information must be checked to avoid:
A. Overheating
B. Excessive vibration
C. Structural cracking
D. Capsizing or excessive trim
D
Improper stability conditions can lead to unsafe docking.
, 6. The area most prone to corrosion in a ship is the:
A. Superstructure
B. Engine casing
C. Splash zone
D. Cargo hold
C
The splash zone experiences alternating wet and dry conditions.
7. Ultrasonic testing (UT) is mainly used to detect:
A. Surface cracks
B. Internal thickness loss
C. Paint defects
D. Alignment errors
B
UT measures material thickness and internal flaws.
8. A cofferdam is best described as a:
A. Hull opening
B. Temporary watertight enclosure
C. Ventilation system
D. Firefighting device
B
Cofferdams isolate areas for repair.
9. Which gas is most dangerous during hot work in confined spaces?
A. Nitrogen
B. Carbon monoxide
C. Oxygen
D. Helium
B
Carbon monoxide is toxic and odorless.
10.The main purpose of side blocks is to:
A. Support propulsion systems
B. Balance cargo
(2025/2026)
Official Mock Practice Exam for Revision
Content Covered by This Exam
• Docking procedures and safety protocols
• Dry dock and wet dock operations
• Hull inspection and defect identification
• Welding and cutting practices in dockyards
• Non-Destructive Testing (NDT) basics
• Corrosion types and control methods
• Ship structural components and terminology
• Alignment, blocking, and shoring principles
• Environmental and occupational safety
• Documentation, inspection reports, and quality control
PART A: MULTIPLE-CHOICE QUESTIONS (1–50)
Choose the most correct answer for each question.
1. The primary purpose of docking a vessel is to:
A. Improve fuel efficiency
B. Conduct underwater inspections and repairs
C. Increase cargo capacity
D. Test navigation systems
, B
Docking allows access to underwater hull areas for inspection, maintenance,
and repair.
2. Which type of dock is permanently attached to the shore?
A. Floating dock
B. Graving dock
C. Pontoon dock
D. Temporary dock
B
Graving docks are fixed structures excavated into the shore.
3. The main function of keel blocks during dry docking is to:
A. Prevent corrosion
B. Support the ship’s weight
C. Align the propeller
D. Reduce vibration
B
Keel blocks carry the majority of the vessel’s load.
4. Which component protects the hull from galvanic corrosion?
A. Sea chest
B. Bilge keel
C. Sacrificial anode
D. Rudder stock
C
Sacrificial anodes corrode instead of the hull material.
5. Prior to docking, stability information must be checked to avoid:
A. Overheating
B. Excessive vibration
C. Structural cracking
D. Capsizing or excessive trim
D
Improper stability conditions can lead to unsafe docking.
, 6. The area most prone to corrosion in a ship is the:
A. Superstructure
B. Engine casing
C. Splash zone
D. Cargo hold
C
The splash zone experiences alternating wet and dry conditions.
7. Ultrasonic testing (UT) is mainly used to detect:
A. Surface cracks
B. Internal thickness loss
C. Paint defects
D. Alignment errors
B
UT measures material thickness and internal flaws.
8. A cofferdam is best described as a:
A. Hull opening
B. Temporary watertight enclosure
C. Ventilation system
D. Firefighting device
B
Cofferdams isolate areas for repair.
9. Which gas is most dangerous during hot work in confined spaces?
A. Nitrogen
B. Carbon monoxide
C. Oxygen
D. Helium
B
Carbon monoxide is toxic and odorless.
10.The main purpose of side blocks is to:
A. Support propulsion systems
B. Balance cargo
