A.matching pulse rates of at least 20 stations
B.an automatic on-and-off switch
C.a horizontal matching of all delayed hyperbolic signals
D.automatic signal acquisition and cycle matching
您可能感興趣的試卷
你可能感興趣的試題
A.be a stopper
B.shorten a line
C.join lines of equal size
D.keep a line from passing through a sheave
A.there are fifteen pounds of CO2 in the container
B.the container,when full,weighs fifteen pounds
C.the pressure at the discharge nozzle is l5 psi
D.the empty container weighs fifteen pounds
A.a safety line attached to a man working over the side
B.used to measure water depth
C.used to slow the headway of a barge
D.used to measure the overhead height of a bridge
A.join lines of equal size
B.form a temporary eye (loop) at the end of a line
C.be a stopper
D.keep a line from fraying
A.you can stop within your visibility range
B.you can take proper and effective action to avoid collision
C.you are traveling slower than surrounding vessels
D.no wake comes from your vessel
最新試題
A vessel’s quarter is that section which is().
A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain().
A copy of the Articles of Agreement,less the signatures,is required to be posted. This document is called the().
A crew member has suffered frostbite to the toes of the right foot. Which is NOT an acceptable first aid measure?()
A change of a documented vessel’s name can only be made by the().
A celestial body will cross the prime vertical circle when the latitude is numerically().
A “l(fā)iner” in riveted construction of a vessel is a(n) ().
A VLCC (100,000 DWT+) with a 30,000 Shaft Horsepower Steam Turbine is slow to respond to engine movements and has less stopping power than normal ships because it has a().
A common class of wire rope used for mooring is the 6x19 class. What does the 6 represent?()
A continual worsening of the list or trim of any floating ship indicates().