更多"A lashing used to secure two barges"的相关试题:
[单项选择]A lashing used to secure two barges side by side，lashed in an "X" fashion，is called a （）.
A. scissor wire
B. towing wire
C. breast wire
D. cross wire
[单项选择]Oil control rings used in two-stroke/cycle diesel engines are located near the bottom of the piston skirt in order to （）
A. increase the liner area covered by the oil film
B. maintain an oil film on the lower liner where scuffing is prevalent
C. keep excess oil away from intake and exhaust ports
D. help cushion piston skirt side thrust by providing a hydrodynamic oil wedge
[单项选择]Two barges are being pushed ahead by a tugboat.Which statement is TRUE concerning lights on the barges（）.
A. Each vessel should show sidelights
B. Each vessel should show at least one white light
C. The barges should be lighted as separate units
D. The barges should be lighted as one vessel
[单项选择]The knot used to join two lines or two large hawsers for towing is called a（）.
A. square knot
B. carrick bend
C. sheet bend
D. bowline
[单项选择]The knot used to join two lines of different diameter is a（）.
A. square knot
B. carrick bend
C. becket bend
D. sheepshank
[单项选择]On commonly used ships,if two A√Cgenerators are operated in parallel, the load is distributed evenly by （）.
A. varying the D-Cexciter voltage
B. varying the reluctance of the air gap
C. regulating the speed of prime mover
D. shorting out part of the armature windings
[多项选择]Which two values are used by Spanning Tree Protocol to elect a root bridge?（）
A. amount of RAM
B. bridge priority
C. IOS version
D. IP address
E. MAC address
F. speed of the links
[多项选择]Which two link protocols are used to carry multiple VLANs over a single link?（）
A. VTP
B. 802.1q
C. IGP
D. ISL
E. 802.3u
[单项选择]The two most common gases used in pneumatic system are （）
A. compressed air and nitrogen
B. helium and nitrogen
C. oxygen and hydrogen
D. oxygen and acetylene
[多项选择]Which two of these key fields are used to identify a flow in a traditional NetFlow implementation?（）
A. source port
B. output interface
C. next-hop IP address
D. source MAC address
E. destination IP address
F. next-hop MAC address
[多项选择]Which two protocols are used by bridges and/or switches to prevent loops in a layer 2 network?（）
A. 802.1d
B. VTP
C. 802.1q
D. STP
E. SAP
[单项选择]The two main types of load cells used in mooring tension gauges are（）.
A. distortion and compression
B. hydraulic and mechanical
C. magnetic and applied torque
D. frictionless and hydraulic
[单项选择]A towboat is pushing barges ahead at a dangerously fast speed when（）.
A. the towboat vibrates when backing down
B. the roostertail exceeds the height of the main deck
C. a strain is placed on the face wires
D. water comes over the foredeck of the lead barges
[单项选择]Most drill ships and barges have a walled opening below the derrick，open to the water’s surface and through which various drilling tools can pass down to the sea floor called a （）.
A. moon pool
B. spider deck opening
C. pontoon
D. keyway
[单项选择]What is NOT a problem area when loading barges on a LASH type vessel? （）
A. Frequent stability calculations required
B. Thorough pre-planning required
C. Limiting depths alongside berths restrict barge drafts
D. Minimum trim and 0°list are required for optimum operations
