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单选题
Which of the following statements represents the function of the compression rings installed at the top of a diesel Engine piston?（）
A
Control the amount of lube oil burned in the combustion chamber
B
Transmit heat from the piston to the cylinder liner
C
Prevent damage to ring groove inserts by acting as a heat dam
D
Dissipate combustion chamber gas pressure by channeling it through the ring gap
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更多 “单选题Which of the following statements represents the function of the compression rings installed at the top of a diesel Engine piston?（）A Control the amount of lube oil burned in the combustion chamberB Transmit heat from the piston to the cylinder linerC Prevent damage to ring groove inserts by acting as a heat damD Dissipate combustion chamber gas pressure by channeling it through the ring gap” 相关考题
考题
Which of the following statements represents the function of the compression rings installed at the top of a diesel Engine piston?A.Control the amount of lube oil burned in the combustion chamberB.Transmit heat from the piston to the cylinder linerC.Prevent damage to ring groove inserts by acting as a heat damD.Dissipate combustion chamber gas pressure by channeling it through the ring gap
考题
Which of the following statements describe the use of the keywordstatic?a) Within the body of a function: A static variable maintains its valuebetween function revocationsb) Within a module: A static variable is accessible by all functionswithin that modulec) Within a module: A static function can only be called by otherfunctions within that module
考题
Which of the following are types of routine objects?()
A.Package and functionB.Function and userexitC.Procedure and packageD.Function and procedure
考题
Which of the following statements is NOT a way of consolidating vocabulary A.Defining.
B.Matching.
C.Gapfilling.
D.Labeling.
考题
Which 4 statements regarding MPLS Label Stack Encoding is true？（）A、A value of 4 represents the "Implicit NULL Label."B、A value of 0 represents the "IPv4 Explicit NULL Label."C、A value of 1 represents the "Router Alert Label". The use of this label is analogous to the use of the"Router Alert Option" in IP packets （for example， ping with record route option）D、A value of 2 represents the "IPv6 Explicit NULL Label"E、A value of 1 represents the "IPv1 Explicit NULL Label"F、A value of 3 represents the "Implicit NULL Label"
考题
Which two statements are true about the role of split horizon？（）A、It is a function used by routing protocols to install routes into routing tableB、It is a function that prevents the advertising of routes over an interface that the router is usingto reach a routeC、Its function is to help avoid routing loops.D、It is a redistribution technique used by routing protocols
考题
Which of the following will allow a server to continue to function if a stick of memory fails？（）A、 ChipkillB、 Memory RAIDC、 Registered memoryD、 ECCE、 Hot spare
考题
Which of the following server types performs the same function as the HOSTS file？（）A、 FTPB、 DHCPC、 DNSD、 WINS
考题
Which of the following represents a wiring standard for twisted pair cables?（）A、FiberB、T568AC、IEEE1394D、CAT5
考题
Which of the following represents a safety hazard？（）A、liquid on the floorB、a tiled floorC、a concrete floorD、carpet
考题
Which of the following describes what the number two represents in l00Base2 cabling?（）A、FiberB、Coaxial cableC、UTPD、Twisted pair
考题
Which of the following are types of routine objects?（）A、Package and functionB、Function and userexitC、Procedure and packageD、Function and procedure
考题
The internet address 198.102.27.120 represents which of the following addresses？（）A、Class AB、Class BC、Class CD、Class D
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
多选题Concerning the figure below, if a =b, which of the following statements must be true? (Indicate all such statements.)Ac=dBl and k are parallelCm and l are perpendicular
考题
单选题Which of the following statements describes the function of an air compressor intake filter?（）A
Protects against suction valve floatB
Provides a positive pressure on the air inlet valvesC
Prevents lubricating oil contamination of the compressed air supplyD
Protects against the damaging effects of airborne solid particles
考题
多选题Which of the following statements are true? (Indicate all such statements.)Aτ(5) =τ(7)Bτ(5) τ(7) =τ(35)Cτ(5) + τ(7) =τ(12)
考题
单选题Which of the following statements represents an advantage of an electromagnetic clutch?（）A
Large misalignments can be tolerated between the shaft and engine couplingB
Slip is held to a minimum when reversing shaft rotationC
Engine torsion vibrations to the driven shaft are eliminatedD
It aids in maintaining power factor
考题
单选题Which of the following statements will the author most probably agree with?A
Foreign students are a new source of financial capital.B
Ph. D. graduates should automatically be given green cards.C
Foreign Ph.D. graduates may function as a kind of capital.D
Foreign investors ought to immigrate to high unemployment areas.
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
单选题Which of the following statements represents the FIRST precaution to be taken prior to working on any installed electrical component （）A
Wear rubber gloves and bootsB
Use only approved non-conducting toolsC
Ground the case of the machine before beginning any repairsD
Open the supply circuits and tag the switches
考题
单选题Which of the following statements represents the main difference between a relay and a contactor?（）A
Contactors control current and relays control voltageB
A relay is series connected and a contactor is parallel connectedC
Contactors can handle heavier loads than relaysD
Contactors are made from silver and relays are made from copper
考题
单选题Which of the following statements represents the reason for rolling over a diesel engine with the cylinder indicator cocks open prior?（）A
To test the starting systemB
To remove air bubbles from the jacket waterC
To ensure that the lube oil system delivers pressureD
To ensure foreign material (water etc) is not present in the cylinders
考题
单选题Which of the following represents a wiring standard for twisted pair cables?（）A
FiberB
T568AC
IEEE1394D
CAT5
考题
单选题Which of the following will allow a server to continue to function if a stick of memory fails?（）A
ChipkillB
Memory RAIDC
Registered memoryD
ECCE
Hot spare
考题
单选题Which of the following represents a safety hazard？（）A
liquid on the floorB
a tiled floorC
a concrete floorD
carpet
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