海船船员考试
单选题Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?（）A Thermal expansion valve frozen openB Suction gas heat exchanger bypassedC Condenser clogged or fouledD High pressure cutout switch ino
题目
Thermal expansion valve frozen open
Suction gas heat exchanger bypassed
Condenser clogged or fouled
High pressure cutout switch inoperative
相似问题和答案
第1题：
Which of the listed problems could produce a high absolute pressure within a flash type evaporator?
A.production of high salinity distillate
B.seawater feed temperature below 165℃
C.a leak in the first stage demister
D.a cracked distillate pump vent line
第2题：
A datacenter manager would like to ensure that all fire suppression in the datacenter is safe for the equipment in the room. Which of the following classifications should be listed on the fire suppression system？（）
- A、A
- B、B
- C、C
- D、D
正确答案:C
第3题：
Which of the listed pressure control valves would be used to establish the maximum operating pressure of a hydraulic system?
A.Pressure-reducing valve
B.Unloading valve
C.Counterbalance valve
D.Pressure-relief valve
第4题：
Excessive cylinder liner
water in the fuel system
Cracked cylinder liner
Leaking lube oil cooler
第5题：
A system without a monitor has crashed. The administrator would like to see the console output to determine a possible cause of the crash and ensure that there were no problems on reboot. Which command would be used？（）
- A、alog
- B、swcons
- C、lscons
- D、syslog
正确答案:A
第6题：
Which tanker discharge pattern would be the safest and most efficient ________．
A.Empty the forward tanks and start working aft，emptying each tank in sequence
B.Start discharging with most of the discharge coming from forward，but include some from midships and after tanks
C.Start pumping from forward，midships，and aft with the discharge distributed equally among the tanks
D.Start pumping from midships and then work forward and aft simultaneously as the midships tank is emptied
第7题：
Which of the following items would MOST likely be kept in a documentation file for each server？（）
- A、 Cost of the equipment
- B、 The users home directories
- C、 Server configuration
- D、 Warranty information
- E、 Accessories that came with the system
正确答案:C,D
第8题：
Which of the problems listed could cause erosion of the expansion valve disks and seats?
A.Overcharging the system with refrigerant
B.Faulty compressor suction valve
C.Failure of the high pressure cutout
D.Flash gas formed in the liquid line
第9题：
The garbage to be discharged will sink
Garbage accumulation onboard has exceeded storage space
A person falls overboard, and a plastic ice chest is thrown for flotation
The destination port or terminal cannot receive garbage
第10题：
cold fuel oil
low fuel oil pressure
low atomizing steam pressure
water in the fuel oil