PY Test 3, Madrid (Ministerio de Transportes) 2021

Ministerio de Transportes (Madrid) · Convocatoria de diciembre · 40 questions

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• If a fixed weight is moved vertically upwards on a vessel:
• During a helicopter rescue, what must you NOT do?
• What mainly causes wind-drift ocean currents (“de arrastre”)?
• To forecast fog with a psychrometer, we need relative humidity and dew point. For this:
• Choose which type of fog does NOT form by cooling:
• The thin transition zone between advancing warmer air and retreating colder air is called:
• Cloud formation begins:
• How do we correct sailing directions?
• Difference of longitude is:
• Which pair of values can give the total correction?
• Magnetic variation:
• A boat meets a current from ahead of 3 knots and the GPS reads a speed of 4 knots. What is the SOG at that moment?
• What is drift?
• On 1 April 2021 at 02:20 in 36º 03.0' N, 006º 05.7' W on Ra = 134º (deviation –7.5º, variation –3.5º) at 10 knots, you enter an unknown current; at 03:35 Da Spartel = 222º and Da Malabata = 163º. Find the current's set and drift:
• Calculate the distance run and the direct course to sail from 43° 50.5´N; 005° 45.0´W to 44° 02.8´N; 005° 38.6´W.
• On 6 June 2020 at ship’s clock 07:45 we are at true position 36°08.5´ N 006°12.0´ W, on Compass Course 100° at an Engine Speed of 8 knots, Deviation being 1.5° (+) and Magnetic Variation 2.5° (-). A north wind gives 10° of leeway and we are in a current setting South at 3 knots. Which position is closest to ours at 09:00?