MODERATE WAVES，TAKING A MORE PRONOUNCED LONG FORM；MANY WHITE HORSES ARE FORMED.THIS sea condition is likely to be termed（）.
A tropical wave is located 200 miles due west of your position，which is north of the equator. Where will the wave be in 24 hours? （）
In modern fathometers the sonic or ultrasonic sound waves are produced electrically by means of a(n)（）.
Which measure should NOT be taken to reduce the pounding of a vessel in a head sea?（）
There has been a collision in sea area of Fork.（）.
In a general oil cooler circulated by sea water, the oil is at a higher pressure, the result being that any leak in the cooler will mean a loss of （）.
When lowering lifeboats in heavy seas，a good practice is to rig frapping lines（）.
（）is not a process of weathering of the oil spilled in the sea water.
A power-driven fishing vessel is underway on the high seas and is not engaged in fishing. Which of the following factors determines what lights she will show?（）.
The ship（）on a low rock was broken in two by the waves.
A fire is discovered in the forepeak of a vessel at sea. The wind is from ahead at 35 knots. You should（）.
When a rescue vessel approaches a lifeboat in heavy seas，the person in charge of the lifeboat should（）.
If a heavy sea strikes the rudder, the shock is transmitted through （） to the rams, this cause a sudden increase in oil pressure in one of the cylinders.
The condition where a ship on the end of a tow line is riding a wave crest at the same time as its tug rides a wave crest is known as riding in（）.
In the northern hemisphere, the largest waves or swells created by a typhoon or hurricane will be located（）.
The purpose of storm oil in a sea anchor is to（）.
In mid-ocean，the characteristics of a wave are determined by three factors. What is NOT one of these factors?（）
（）is the most visible signal of distress from a lifeboat at sea in the daytime.
118. In mid-ocean, the characteristics of a wave are determined by three factors. What is NOT one of these factors?
It can be inferred from the passage that if the S waves from an earthquake arrive at a given location long after the P waves, which of the following must be true？
The combination of sea/air transportation has in itself some advantages, such as （)A．reduc
The basic principle of radar is illustrated by what happens when one shouts in a e. The echoof the shouting 11 the walls helps a person determine the size of i cave. With radar, however , the waves are radio waves instead of 12 waves. dio waves travel 13 the speed of light, about 300,000 kilometers in a second. A lar set 14 a short burst of radio waves. Then it receives the echoes 15 when waves bounce (Silt) off objects. By determining the time it 16 for the echoes to imi to the radar set, a trained technician 17 determine the distance between the [ar set and other objects. The word "radar", 18 , gets its name from the term dio detection and ranging." "Ranging" is the term for detection of the 19 between object and the radar set.
Ship was reposed to be in distress a few miles out at sea．
