Hotel Service Unit 16 Q2 Quiz

hotel service unit 16 Q2

1 / 9

How do bilge keels help reduce vessel motion?

B) By increasing resistance to roll through hydrodynamic drag

D) By adjusting the center of gravity

C) By stabilizing the vessel during pitch

A) By creating lift at high speeds

2 / 9

What is the "sway" motion of a vessel?

D) The rolling of the vessel

C) The forward and backward motion

A) The rotational movement around the longitudinal axis

B) The sideways movement to port and starboard

3 / 9

Where are bilge keels typically located on a vessel?

A) Near the bow

C) Along the bilge, at the turn of the hull

D) Near the propeller

B) Along the keel at the vessel’s centerline

4 / 9

Which of the following best describes the degree of freedom known as "heave"?

D) The forward and backward motion

C) The rotational movement about the vessel's vertical axis

A) The vertical up and down movement of the vessel

B) The sideways movement to port and starboard

5 / 9

What is the term for the rotational movement around a vessel's vertical axis?

B) Roll

A) Pitch

D) Heave

C) Yaw

6 / 9

Which degree of freedom describes the vessel's rotational motion about its longitudinal axis?

C) Roll

D) Surge

B) Pitch

A) Yaw

7 / 9

Why are bilge keels less effective in controlling pitch compared to roll?

A) They are too small to control pitch

C) They are only used at high speeds

D) Bilge keels are located at the bow

B) Pitch involves movement along the longitudinal axis, not the transverse

8 / 9

What is "pitch" in the context of vessel motion?

A) Rotation about the vertical axis

D) Rotation about the transverse axis

B) Forward and backward motion

C) Vertical movement

9 / 9

Which degree of freedom involves the vessel's forward and backward movement?

C) Surge

A) Heave

D) Roll

B) Sway

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