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1. What are the types of marks used in the IALA MBS?

a. Cardinal, Lateral, Isolated Danger, Safe Water, Special and Topmarks;

b. Safe Water, Lateral, Isolated Danger, Special, Cardinal and Conical Marks;

c. Lateral, Cardinal, Isolated Danger, Safe Water, Special and New Danger Marks;

d. Lateral, Cardinal, Isolated Danger, Safe Water, and Emergency Wreck Marking.

2. What are easily recognizable elements of the marks?

a. Transponder, Shape, Color, Topmark; Light; Location

b. Shape, color, topmark, light, location, markings.

c. Shape; Transponder, Color; Topmark; Light; Markings.

d. Topmark, transponder, shape; light; location; markings.

3. What are easily recognizable auxiliary features of the marks?

a. a radar transponder

b. sound signals

c. Whistle, Bell, Gong and RAdar beacon

d. Whistle, Bell, Gong

4. What is the purpose of a RACON?

a. a light used to mark maritime navigational hazards

b. an equipment used to mark MBS

c. an equipment used to mark IALA buoys

d. a device used to mark maritime navigational hazards, etc

5. What are the possible shapes of the marks?

a. Can; Conical; Spherical; Pillar; Spar.

b. Cardinal; Can; Conical; Pillar; Spar.

c. Can; Lateral; Spherical; Pillar; Spar.

d. Spherical; Can; Conical; Isolated; Spar.

6. What features describe the light?

a. Color, shape and phase.

b. Color, period and phase.

c. shape, period and phase.

d. Color, period and topmark.

7. Describe the Fixed Light.

a. a light with equal intervals.

b. a light with unequal intervals.

c. an uninterrupted light.

d. a light with equal and unequal intervals.

8. Describe the Occulting Light.

a. an uninterrupted light.

b. a light in which darkness is longer than light.

c. a light in which darkness and light are equal

d. a light in which light is longer than darkness.

9. Define the Isophase Light.

a. a light in which darkness and light are equal.

b. a light in which light is longer than darkness.

c. an uninterrupted light.

d. a light in which darkness is longer than light.

10. Describe the Flashing Light.

a. an uninterrupted light.

b. a light in which light is shorter than darkness.

c. a light in which darkness is shorter t han light

d. a light in which darkness and light are equal.