Which of the problems listed could be indicated if a sight g

题目
单选题
Which of the problems listed could be indicated if a sight glass in the refrigerant liquid line is full of bubbles?()
A

Proper refrigerant charge

B

Faulty expansion valve

C

Insufficient refrigerant

D

Solenoid valve stuck open

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相似问题和答案

第1题:

A legacy network that is prone to errors may have issues with services that use UDP. Which of the following services could have problems in this case, due to the fact that UDP is used?()

A.DNS

B.Telnet

C.SMTP

D.SNMP

E.HTTP

F.TFTP


参考答案:A, D, F

第2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


正确答案:D

第3题:

In the refrigeration system, a shortage of refrigerant is indicated by

A.the compressor short cycling on high pressure cut out switch

B.high suction pressure

C.high head pressure

D.bubbles in the sight glass


正确答案:D

第4题:

单选题
Which of the listed problems would be indicated by an accumulation of water in one cylinder, in addition to the crankcase of an idle diesel engine?()
A

Excessive cylinder liner

B

water in the fuel system

C

Cracked cylinder liner

D

Leaking lube oil cooler


正确答案: A
解析: 暂无解析

第5题:

A legacy network that is prone to errors may have issues with services that use UDP. Which of the following services could have problems in this case, due to the fact that UDP is used?()

  • A、DNS
  • B、Telnet
  • C、SMTP
  • D、SNMP
  • E、HTTP
  • F、TFTP

正确答案:A,D,F

第6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


正确答案:D

第7题:

Which statement about the dangerous cargo manifest,carried on a ship,is TRUE ________.

A.The manifest must be made up by the Master or other designated ship's officer

B.Shipments of hazardous and non-hazardous cargo may be listed on the manifest if they are destined for the same consignee

C.The manifest must be kept in a designated holder on or near the bridge

D.The type of label(s)required for each cargo must be indicated


正确答案:C

第8题:

Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?

A.A shortage of liquid refrigerant.

B.Excessive frost on the evaporator.

C.Excessive condenser cooling water.

D.Insufficient condenser cooling water flow.


正确答案:D

第9题:

A server is having problems accessing its presented storage on a SAN.  Which of the following could be causing the problem?()

  • A、NIC
  • B、HBA
  • C、Tape backup drive
  • D、SCSI adapter
  • E、CPU

正确答案:A,B

第10题:

单选题
When lighting off an auxiliary boiler, which of the problems listed could cause the burners to sputter?()
A

cold fuel oil

B

low fuel oil pressure

C

low atomizing steam pressure

D

water in the fuel oil


正确答案: C
解析: 暂无解析

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