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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 system
B
To remove air bubbles from the jacket water
C
To ensure that the lube oil system delivers pressure
D
To ensure foreign material (water etc) is not present in the cylinders
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更多 “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” 相关考题
考题
Which of the following best illustrates the relation between reason and revelation?［A］ They are simply identical.［B］ Revelation guides reason.［C］ They are occasionally contradictory.［D］ Reason is used to perfect revelation.
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 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 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
Which of the following represents a wiring standard for twisted pair cables?（）A、FiberB、T568AC、IEEE1394D、CAT5
考题
The "1000" in 1000BaseT cabling represents which of the following?（）A、The theoretical maximum cable lengthB、The theoretical maximum bandwidthC、The theoretical port limit of the cableD、The quality level of the copper wiring used
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
The internet address 198.102.27.120 represents which of the following addresses？（）A、Class AB、Class BC、Class CD、Class D
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
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 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 is NOT a way of consolidating vocabulary?A
Defining.B
Matching.C
Gap-filling.D
Labeling.
考题
单选题Which of the following statements represents the correct action to take when three crew members discover a fire?（）A
One man report the fire, and the other two men fight the fireB
One man report the fire, one man fight the fire, and one man evacuate and secure the areaC
One man report the fire, one man fight the fire, and one man act as a safety observerD
All three men fight the fire and report it immediately after it is extinguished
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For the following statements， which one is the strongest symmetrical encryption algorithm？（）A
AESB
3DESC
DESD
Diffie-Hellman
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 best illustrates the relation between reason and revelation? _____.A
They are simply identical.B
Revelation guides reason.C
They are occasionally contradictory.D
Reason is used to perfect revelation.
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
考题
单选题Which of the following most closely represents an image copy? （）A
Unix cp command of a fileB
Bit-by-bit copy of a fileC
Windows COPY command of a file D
All of the above
考题
多选题Which 4 statements regarding MPLS Label Stack Encoding is true？（）AA value of 4 represents the Implicit NULL Label.BA value of 0 represents the IPv4 Explicit NULL Label.CA value of 1 represents the Router Alert Label. The use of this label is analogous to the use of theRouter Alert Option in IP packets （for example， ping with record route option）DA value of 2 represents the IPv6 Explicit NULL LabelEA value of 1 represents the IPv1 Explicit NULL LabelFA value of 3 represents the Implicit NULL Label
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