更多"Blocks and falls used as lifeboat g"的相关试题:
[单项选择]All wire rope used in shipboard cargo gear must be identified and described in a certificate. The certificate shall certify all of the following EXCEPT the（）.
A. date of the test
B. load at which a test sample broke
C. name of the vessel
D. number of strands and of wires in each strand
[单项选择]The auxiliary steering gear must be capable of being brought speedily into operation and be able to put the rudder over from 15 degrees on one side to 15 degrees on the other side in no more than （） with the ship at its deepest service draught and running ahead at the greater of one half of the maximum service speed or （）.
A. 28 seconds；7 knots
B. 28 seconds；14 knots
C. 60 seconds；7 knots
D. 60 seconds；14 knots
[单项选择]The main steering gear must be able to steer the ship at maximum ahead service speed and be capable at this speed, and at the ships deepest service draught, of putting the rudder from 35 degrees on one side to 30 degrees on the other side within no （）.
A. more than 28 seconds
B. more than 60 seconds
C. less than 28 seconds
D. less than 60 seconds
[单项选择]Fittings used for towing must be（）.
A. Coast Guard approved
B. stamped with maximum working loads
C. securely fastened
D. positioned exactly at the bow of the towed vessel
[单项选择]Chafing gear is used to（）.
A. anchor the boat
B. pick up heavy loads
C. protect fiber rope from abrasion
D. strengthen mooring lines
[单项选择]（）are used for anchor gear in marine work where the chains must withstand the corrosive effects of seawater.
A. Chains
B. Wires
C. Ropes
D. Lines
[单项选择]Chafing gear is normally used（）.
A. for portable fenders
B. for ground tackle
C. on the inside of the hawsepipe
D. on mooring lines
[单项选择]Which lashing gear used aboard Ro-Ro vessels should be painted or soaked in oil when not in use（）.
A. Chain
B. Wire rope
C. Webbing
D. All of the above
[单项选择]Peck and Hale gear is used most commonly for securing（）.
A. automobiles
B. baled cargo
C. large wooden crates
D. palletized cargo
[单项选择]How could lashing gear used aboard Ro-Ro vessels be stowed when not in use? （）
A. Drape along brackets
B. Leave in place while back loading cargo to save time
C. Hang vertically in the paint locker
D. All of the above
[单项选择]Each hose used for transferring vapors must（）.
A. have a design burst pressure of at least 25 psig
B. be capable of withstanding at least 2.0 psi vacuum without collapsing or constricting
C. be electrically continuous with a maximum resistance of ten thousand ohms
D. All of the above
[单项选择]Gear-type flexible couplings are often used in diesel engine drive trains because they（）
A. require no lubrication under normal operating conditions
B. compensate for gross misalignment in the drive train
C. are able to transmit high torque ,even where slight misalignment exists
D. will rapidly disconnect the engine from the line shaft
[单项选择]Hoses used for cargo transfer operations must be tested and inspected at specified intervals by（）.
A. a representative of the Captain of the Port
B. the operator of the vessel or facility
C. a representative of the National Cargo Bureau
D. low inert gas temperature
[单项选择]A light used to signal passing intentions must be an（）.
A. alternating red and yellow light
B. alternating white and yellow light
C. all-round white or yellow light
D. all-round white light only
