Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by ().
Foaming of the oil in a refrigeration compressor crankcase is caused by ().
The difference between the starboard and port drafts caused by shifting a weight transversely is().
A virtual rise in the center of gravity may be caused by().
Deviation in a compass is caused by the().
In modern fathometers the sonic or ultrasonic sound waves are produced electrically by means of a(n)().
The Shipowner is not()by the fact that a remote cause of the loss was an excepted peril.
The reciprocating pump can’t draw water from a tank may be caused by ().
A document used to indicate suspected cargo damage caused by rough weather would be the ().
The difference between the starboard and port drafts caused by a transverse shift in weight is ().
Damage caused by lighting,a storm,or a sudden gust of wind may be within the exception of ().
The major cause of trouble in a mechanical-hydraulic governor is contamination of the hydraulic fluid by ()
A virtual rise in the center of gravity of a ship may be caused by().
The ship()on a low rock was broken in two by the waves.
Above-normal tides near the center of a hurricane maybe caused by the ().
In the northern hemisphere, the largest waves or swells created by a typhoon or hurricane will be located().
The error in the measurement of the altitude of a celestial body,caused by refraction,increases as the().
In mid-ocean,the characteristics of a wave are determined by three factors. What is NOT one of these factors?()
In shallow water,waves that are too steep to be stable,causing the crests to move forward faster than the rest of the wave,are called().
The movement of heat within a fluid, caused by the application of thermal energy, is called ().
Above-normal tides near the center of a hurricane maybe caused by the().
118. In mid-ocean, the characteristics of a wave are determined by three factors. What is NOT one of these factors?
Which of the following diseases is caused by a vitamin deficiency?
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.