RYA Yachtmaster IRPCS 2

Question 1

What lights does a vessel 'not under command' display at night?

Accepted Answer

Two all-round red lights in a vertical line, plus sidelights and stern light if making way

Answer

A vessel not under command (NUC) displays two all-round red lights in a vertical line. If making way through the water, she must also display sidelights and a stern light, but no masthead light.

Question 2

Under Rule 10, what obligations does a vessel have when navigating in a Traffic Separation Scheme (TSS)?

Accepted Answer

She must use the appropriate traffic lane in the general direction of traffic flow, join and leave at a shallow angle, and avoid crossing if possible

Answer

In a TSS, vessels must travel in the correct lane, join/leave at as shallow an angle as practicable, avoid crossing but if necessary cross at right angles. Vessels under 20m or sailing vessels must not impede vessels following the lane.

Question 3

What does a single prolonged blast followed by two short blasts signify?

Accepted Answer

A vessel in restricted visibility that is not under command, restricted in ability to manoeuvre, constrained by draught, sailing, fishing, or towing

Answer

One prolonged followed by two short blasts is the fog signal for vessels that are: NUC, RAM, CBD, sailing, fishing, or engaged in towing/pushing. It identifies vessels with restricted manoeuvrability in poor visibility.

Question 4

According to Rule 8, what are the requirements for action to avoid collision?

Accepted Answer

Action must be positive, made in ample time, large enough to be readily apparent to the other vessel, and made with due regard to good seamanship

Answer

Rule 8 requires that avoiding action be: taken in ample time, positive and obvious (large enough to be detected by radar), and made with good seamanship. Small, tentative alterations should be avoided.

Question 5

What is a 'vessel constrained by her draught' (CBD) and what lights does she display?

Accepted Answer

A power-driven vessel deeply loaded and severely restricted in ability to deviate from the course being followed — displays three all-round red lights in a vertical line in addition to normal lights

Answer

A CBD vessel is a power-driven vessel so deeply loaded that its draught severely restricts its ability to deviate from its course. It displays three all-round red lights in a vertical line plus its normal power-driven vessel lights.

RYA Yachtmaster Practice Test

RYA Yachtmaster Practice Test

RYA Yachtmaster IRPCS 2