molecular fluid vibration
energy losses
wide pressure variations
mechanical damage to control valves
第1题：
Computer hardware engineers research, design, develop, and test computer hardware and supervise its manufacture and(73). Hardware refers to computer(74), circuit boards, computer systems, and related equipment such as keyboards, modems, and printers.
A．fixing
B．building
C．setting
D．installation
第2题：
Among the basic categories of equipment, which of the following are used to allow the hydraulic energy to be controlled?
A.hydraulic pumps
B.valves
C.hydraulic cylinders
D.hydraulic motors
第3题：
he five major cost categories of quality are _____ .
A . prevention, appraisal, internal failures, external failures, and equipment (measurement and test).
B . specifications, QA programs, QC programs, parts rejected and parts returned
C . Staffing, Training, reviews, equipment and rejected goods
D . sampling, design considerations, manufacturing considerations, training and rework.
E . None of the above
第4题：
The complete details of a crude oil washing system aboard your vessel，including the operating sequences and procedures，design characteristics，a description of the system，and required personnel will be found in the ______.
A.Oil Transfer Procedures Manual
B.Crude Oil Washing Operations and Equipment Manual
C.Code of Federal Regulations
D.Crude Oil Washing addendum to the Certificate of Inspection
第5题：
Among the basic categories of equipment, which of the following are used to convert the hydraulic energy into linear motion?
A.hydraulic pumps
B.valves
C.hydraulic cylinders
D.hydraulic motors
第6题：
“擀面棍”的英文单词是“()”。
A.Piping bag
B.Rolling pin
C.Plain mold
D.Piping tube
第7题：
If you install a new hydraulic hose in a hydraulic system, the hose must be long enough to allow for contraction to prevent
A.failure of the hydraulic hose
B.excessive flow through the line
C.friction in other areas of the hydraulic system
D.overheating of the hydraulic fluid
第8题：
146 The five major cost categories of quality are _____ .
A. prevention, appraisal, internal failures, external failures, and equipment (measurement and test). B. specifications, QA programs, QC programs, parts rejected and parts returned
C. Staffing, Training, reviews, equipment and rejected goods
D. sampling, design considerations, manufacturing considerations, training and rework.
E. None of the above
第9题：
Among the basic categories of equipment, which of the following is used to convert hydraulic energy into continuous rotary motion?
A.hydraulic pumps
B.valves
C.hydraulic cylinders
D.hydraulic motors
第10题：
What is NOT a requirement of cargo piping installed in tank vessels carrying grade D or E cargo ONLY ________．
A.The cargo piping system shall be fixed
B.Flanged joints shall be used for pipe sizes exceeding 2 inches in diameter
C.Piping through bunker spaces may be run through a pipe tunnel
D.Connections at bulkheads must be made so that the plating does not form part of a flanged joint