Which weather instrument measures atmospheric pressure?
A) Beaufort scale B) Anemometer C) Sling psychrometer D) Barometer E)NULL
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If the radio signal ground wave extends out for less distance than the minimum skywave distance, there is an area in which no signal is received. This is called the __________.?
A) skip zone B) blackout zone C) diffraction zone D) shadow zone E)NULL
When a buoy is in position only during a certain period of the year, where may the dates when the buoy is in position be found?
A) Light List B) Notice to Mariners C) On the chart D) Coast Pilot E)NULL
The planet Venus can be observed in the morning before sunrise if it is well to the __________.?
A) west of and higher than the Sun B) west of and lower than the Sun C) east of and higher than the Sun D) east of and lower than the Sun E)NULL
You are underway in a vessel with a draft of 6.0 feet. You are in an area where the charted depth of the water is 4 fathoms. You would expect the depth of water beneath your keel to be approximately __________.?
A) 12 feet B) 18 feet C) 24 feet D) 30 feet E)NULL
Clouds that form as small white flakes or scaly globular masses covering either small or large portions of the sky are __________.?
A) cirrus B) cirrostratus C) altostratus D) cirrocumulus E)NULL
What is the equivalent of 83°29.6′ in time units?
A) 5h 47m 34.8s B) 5h 18m 22.7s C) 5h 01m 42.3s D) 5h 33m 58.4s E)NULL
Which statement about the gyrocompass is FALSE?
A) Its accuracy remains the same at all latitudes. B) It seeks the true meridian. C) It can be used near the Earth’s magnetic poles. D) If an error exists, it is the same on all headings. E)NULL
The buoy indicated by the letter C in illustration D044NG is a __________.?
A) nun B) can C) spar D) pillar E)NULL
When using a radar in a unstabilized mode, fixes are determined most easily from __________.?
A) center bearings B) tangent bearings C) ranges D) objects that are close aboard E)NULL