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单选题
Which of the following statements regarding low expansion foam and its application is INCORRECT?（）.
A
Foam should not be used on electrical fires
B
One kilo of low expansion foam solution produces much more foam
C
Foam is only efficient when it covers the top of burning combustibles
D
A stream of foam should be deflected off the deck in order to best agitate the fire
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更多 “单选题Which of the following statements regarding low expansion foam and its application is INCORRECT?（）.A Foam should not be used on electrical firesB One kilo of low expansion foam solution produces much more foamC Foam is only efficient when it covers the top of burning combustiblesD A stream of foam should be deflected off the deck in order to best agitate the fire” 相关考题
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In the following statements about the principle of the low level controlling, which is WRONG? 0
A.Low level is monitored on the drain tank and header tank.B.If there is high differential the filters pressure across the circulatingpumps is alarmedC.The lubricating oil purifier cannot take oil from the drain tankD.If the sea water pressure falls, this also operates an alarm
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Which of the following statements is correct regarding an oil with a high viscosity index?A.A large change of viscosity occurs with a minor change in temperatureB.No change in viscosity occurs with any change in temperatureC.Very little change in viscosity occurs with a significant change in temperatureD.The viscosity of the oil increases with an increase in temperature
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The man page for command shows the following syntax: The man page for command shows the following syntax: command [ －a | －b ] Which of the following statements is true regarding this entry?()
A. Either the -a or flag -b may be used, but not both.B. If the flag -a is used then the flag -b also must be used.C. One of the -a or -b flags must be used, but not both at the same time.D. Both the flags may be used together, but neither are mandatory.
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The following configuration command was entered into a router:ip route 172.16.3.0 255.255.255.0 192.168.2.4 Which of the following statements are true regarding this configuration change?()
A. The default administrative distance is used.B. The command is used to establish a static route.C. The command is used to configure the router interfaces.D. The command is used to establish a stub network.E. The subnet mask for the source address is 255.255.255.0
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Which of the following expansion slots would be BEST for a fiber network card？（）A、 ISAB、 PCIxC、 PCIeD、 AGP
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Which of the following statements is true regarding the VERSIONS BETWEEN clause？（） A、 The VERSIONS BETWEEN clause may be used in DML statements.B、 The VERSIONS BETWEEN clause may be used in DDL statements.C、 The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.D、 The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.
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Which of the following statements is TRUE concerning the po column of the vmstat command？（）A、 The sys is high when po is high.B、 The po represents the number of page steals.C、 The low values usually indicate insufficient paging space.D、 The low values usually indicate sufficient memory for the load.
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Which of the following statements is correct regarding a hybridcrypto system？（）A、 uses symmetric crypto for keys distributionB、 uses symmetric crypto for proof of originC、 uses symmetric crypto for fast encrypted/decryptionD、 uses asymmetric crypto for message confidentialityE、 uses symmetric crypto to transmit the asymmetric keys that is thenused to encrypt a session
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The following configuration command was entered into a router:ip route 172.16.3.0 255.255.255.0 192.168.2.4 Which of the following statements are true regarding this configuration change?（）A、The default administrative distance is used.B、The command is used to establish a static route.C、The command is used to configure the router interfaces.D、The command is used to establish a stub network.E、The subnet mask for the source address is 255.255.255.0
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Which of the following expansion cards can be installed into an AGP slot?（）A、ModemB、NetworkC、VideoD、RAID
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The man page for command shows the following syntax: The man page for command shows the following syntax: command [ -a | -b ] Which of the following statements is true regarding this entry?（）A、Either the -a or flag -b may be used, but not both.B、If the flag -a is used then the flag -b also must be used.C、One of the -a or -b flags must be used, but not both at the same time.D、Both the flags may be used together, but neither are mandatory.
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Which of the following statements are true regarding the Recycle Bin？（）A、 The Recycle Bin is a physical storage area for dropped objects.B、 The Recycle Bin is a logical container for dropped objects.C、 The Recycle Bin stores the results of a Flashback Drop operation.D、 The objects in the Recycle Bin are stored in the tablespace in which they were created.
考题
单选题Which of the following statements describes the function of an expansion tank in a diesel engine cooling system?（）A
Maintains a constant head on the systemB
Reduces the likelihood of air or steam pockets formationC
Provides a low pressure point for the addition of makeup cooling waterD
All of the above
考题
单选题If the turbocharger of a four-stroke/cycle diesel engine fails to operate, which of the following statements best describes the probable effect?（）A
Intake manifold pressure will be highB
Intake manifold pressure will be unaffectedC
Exhaust temperatures will be highD
Exhaust temperatures will be low
考题
单选题Which of the following is the author’s primary concern regarding the application of the new technology?A
The expansion of the new technology may not bring profits to the companies.B
Most people who use the technology will not have a baby as they want.C
The effect of the new technology still needs to be carefully examined.D
Increasing use of the technology may disturb the sex balance in the population.
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单选题Which of the following statements is TRUE regarding crane operations（）.A
Radio communications allow the crane operator to disregard the use of hand signalsB
The crane operators and signalman must be familiar with the correct hand signalsC
The forward cranes can be operated from the bridgeD
The aft cranes can be operated from the aft steering station
考题
单选题Which of the following statements is TRUE concerning the po column of the vmstat command？（）A
The sys is high when po is high.B
The po represents the number of page steals.C
The low values usually indicate insufficient paging space.D
The low values usually indicate sufficient memory for the load.
考题
多选题Which of the following statements are true regarding the Recycle Bin？（）AThe Recycle Bin is a physical storage area for dropped objects.BThe Recycle Bin is a logical container for dropped objects.CThe Recycle Bin stores the results of a Flashback Drop operation.DThe objects in the Recycle Bin are stored in the tablespace in which they were created.
考题
多选题On a Cisco Unified Computing System （UCS）， which two statements regarding Ethanalyzer are true？（）AInterface inbound-low handles Rx and Tx of low-priority control packetBInterface inbound-lo handles Rx and Tx of high-priority control packetCInterface inbound-low maps to internal interface eth3DInterface inbound-low maps to internal interface eth4
考题
单选题Which of the following statements regarding documentation would not be considered a helpful stepin the troubleshooting process？（）A
Use the Cisco Auto Configuration toolB
Use the Cisco Rollback featureC
Automate documentationD
Schedule documentation checksE
Use the Cisco Configuration Archive toolF
Require documentation prior to a ticket being closed out
考题
单选题Which of the following statements is true regarding the VERSIONS BETWEEN clause？（）A
The VERSIONS BETWEEN clause may be used in DML statements.B
The VERSIONS BETWEEN clause may be used in DDL statements.C
The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.D
The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.
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单选题Which of the following expansion cards should be installed into a server to provide iSCSI SANconnectivity?（）A
HBAB
PBXC
VoIPD
NIC
考题
单选题Which of the following statements is correct regarding an oil with a high viscosity index?（）A
A large change of viscosity occurs with a minor change in temperatureB
No change in viscosity occurs with any change in temperatureC
Very little change in viscosity occurs with a significant change in temperatureD
The viscosity of the oil increases with an increase in temperature
考题
单选题Which of the listed components is considered to separate the high pressure side of a refrigeration cycle from the low pressure side of the cycle?（）A
The condenser and the expansion valveB
The king valve and the solenoid valveC
The compressor and the expansion valveD
The condenser and the solenoid valve
考题
单选题You are passing the Bayou Sara gage which reads 3.9 feet. Which of the following statements is TRUE?（）A
The river level is above the Low Water Reference PlaneB
Red Store Landing Revetment is ahead on your starboard sideC
This gage reading is at a lower elevation than the same reading on the gage at Head of PassesD
None of the above
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