更多"[单选题]Mechanical refrigeration syste"的相关试题:
[单选题] The passing of a low pressure system can be determined by periodically checking the ______．
A.Thermometer
B.Hygrometer
C.Barometer
D.Anemometer
[单选题] Refrigeration machinery is often surveyed before loading reefer cargo．This survey is usually performed by the ______．
A.MSA
B.CCS
C.CCIQ
D.Local port authority
[单选题]飞机结构修理分为几类？
How many categories divide into Aircraft structure repair ?
A.2
B.3
C.4
[单选题]Never so serious mechanical damage before.
A.our ship has experienced
B.did our ship sustained
C.our ship has been
D.has our ship sustained
[单选题] Mechanical gearing of deck machinery such as the
Windlass or boat hoists should ______．
A.Be open to view so，if a foreign object gets in the gearing，the operator can immediately stop the machinery
B.Have a guard over the gearing
C.Be painted a contrasting color from the base color in order to call attention to the gearing
D.Not be operated if there is any crew within 10 feet of the machinery
[单选题]Among the four parts of the mechanical refrigerating system, ___performs the cooling function.
A.the expansion device
B.the evaporator
C.the compressor
D.the condenser
[单选题] Mechanical lifting of air by the upslope slant of the terrain is called ______．
A.Vertical lifting
B.Convective lifting
C.Advective lifting
D.Topographic lifting
[单选题]There is some mechanical trouble __the aircraft.
A.at
B.in
C.with
D.of
[单选题]Which the system that SELCAL system must through it realize SELCAL function？选择呼叫系统必须通过哪个系统才能实现其呼叫（ ）
A.VHF or VOR systems.VHF或VOR系统
B.HF or ADF systems。HF或ADF系统
C.HF or VHF systems.HF或VHF系统
[单选题]LG 机械部件包括哪些（ ）
LG mechanical components including：
A.LG上锁，门上锁
LG up lock, door up lock
B.LG下锁，门上锁，门下锁
LG down lock, door up lock, door down lock
C.LG上锁，门上锁，门下锁
LG lock, door up lock, door down lock
[单选题] We will adopt the mechanical tallying ____.
A. soon or late
B. soon or later
C. sooner or late
D. sooner or later
[单选题]----You can teach me English and I can teach you Chinese .
----_________
A.The same to you.
B. That’s a deal !
C. What a pity!
D. Thank you.
[单选题] I can _____ catch up with you. Can you walk slowly?
A. hard
B. hardly
C. harder
D. hardlier
[单选题]下列对舒适CAN总线的CAN收发器描述错误的是（ ）
A.CAN-H线的高电压平为3.6V
B.CAN-H线的低电压平为0V
C.CAN-L线的高电压为1.4V
D.CAN-L线的低电压平为1.4V
[单选题]----Tom, Mary can’t sharpen the pencil. Can you give ____ a hand?
---- Certainly.
A.she
B.his
C.hers
D.her
[单选题](单选题).CAN-H对CAN-L的电阻值为( )。
A.60..Ω左右
B.30..Ω左右
C.240..Ω左右
D.120..Ω左右
