网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
When the propeller blades are integral with the hub, the propeller is called a （）.
A
built up propeller
B
solid propeller
C
controllable pitch propeller
D
suction back propeller
参考答案
参考解析
解析：
暂无解析
更多 “单选题When the propeller blades are integral with the hub, the propeller is called a （）.A built up propellerB solid propellerC controllable pitch propellerD suction back propeller” 相关考题
考题
When the tail-shaft is drawn from a vessel in dry-dock, which of the following inspections is required to be carried out?A.The propeller hub taper and shaft keyway should be inspected for cracks or corrosionB.The stern bearing alignment with the stern frame should be checkedC.The interior of the stern tube should be inspected for leaksD.The shaft liner should be removed and inspected for cracks
考题
_____ of the controllable pitch propeller enables the blades to be moved to change the pitch angleA.An external mechanismB.An internal mechanismC.An interlock deviceD.A hunting gear system
考题
Vessel propellers are classified as being right hand or left hand.A right hand propeller turns clockwise when viewed from______.A.the bowB.the sternC.the port sideD.the starboard side
考题
A large vessel is equipped with a controllable pitch propeller. Which statement is TRUE?A.When dead in the water，it is often difficult to find the neutral position and slight headway or sternway may resultB.When going directly from full ahead to full astern，there is complete steering controlC.When the vessel has headway and the propeller is in neutral，there is no effect on rudder controlD.When maneuvering in port，full ahead or astern power can usually be obtained without changing shaft RPM
考题
On a vessel with a single propeller，transverse force has the most effect on the vessel when the engine is put ______．A.full aheadB.full asternC.half aheadD.slow astern
考题
When an MPLS Layer 2 VPN runs in the hub-and-spoke model， where is QoS implemented？（）A、hub and spokeB、PEC、CED、hubE、spoke
考题
螺旋桨有四个桨叶。 （）A、The helm has four blades.B、The propeller has forty blades.C、The windlass has four blades.D、The propeller has four blades.
考题
Which two statements are true regarding an Ethernet collision domain?（）A、The likelihood of collisions occurring increases when a switch is used.B、The likelihood of collisions occurring increases when a hub is used.C、If a hub is used, the collision domain is limited to each device and the hub.D、If a switch is used, the collision domain is limited to each device and the switch.
考题
单选题When backing a motor propelled lifeboat (right-hand propeller) with the rudder amidships，the stern will back（）.A
straightB
to portC
to starboardD
None of the above
考题
单选题If keep the fuel injection of main engine unchanged when ship is fouled, that will causeⅠ.The speed of main engine to be reduced Ⅱ.Ship speed to be reduced Ⅲ.The resistance torque of propeller to be increased Ⅳ.Trim at stern to increase（）A
Ⅰ + ⅡB
Ⅰ ~ ⅢC
Ⅰ ~ ⅣD
Ⅰ + Ⅱ + Ⅳ
考题
单选题Vessel propellers are classified as being right hand or left handA right hand propeller turns clockwise when viewed from（）.A
the bowB
the stemC
the port sideD
the starboard side
考题
单选题In twin-screw engine installations while going ahead，maneuvering qualities are most effective when the tops of the propeller blades both turn（）.A
to starboardB
outboard from the centerC
to portD
inboard toward the center
考题
单选题A customer wants to implement the following Blades in BladeCenter H:Two POWER Blades running IBM i partitions.Two POWER Blades running AIX and LinuxFour x86 Blades running Windows. Which of the following design consideration statements is correct?（）A
The Blades must use the same CIOv and CFFh expansion adapter types.B
Two physical BladeCenter H chassis will be required. One for the POWER Blades, the other for the x86 Blades.C
The x86 Blades and POWER Blades may use different expansion adapters provided the POWER Blades are in bays 1-7 and the x86 Blades are in slots 8-14.D
The x86 Blades and POWER Blades may use different expansion adapters, provided the corresponding I/O modules to Blade midplane connections are configured in the Advanced Management Module (AMM).
考题
单选题When the tail-shaft is drawn from a vessel in dry-dock, which of the following inspections is required to be carried out?（）A
The propeller hub taper and shaft keyway should be inspected for cracks or corrosionB
The stern bearing alignment with the stern frame should be checkedC
The interior of the stern tube should be inspected for leaksD
The shaft liner should be removed and inspected
考题
单选题Sidewise force of the propeller tends to throw a vessel’s stern to the right or left，depending on rotation. This force is caused by（）.A
back current from the rudderB
greater pressure on the right or left side of the propeller，depending on rotationC
lower pressure on the right or left side of the propeller，depending on rotationD
torque from the velocity and angle at which the surrounding water impinges upon the propeller blades
考题
单选题How does a vessel’s rate of turn change when entering shallow water?（）A
It is fasterB
It is slowerC
There is no changeD
It remains constant for varying propeller revolutions
考题
单选题When in command of a lifeboat under oars，the command TOSS OARS means to（）.A
lift oars to vertical position，trim blades fore and aft with handles resting on the thwartsB
complete the stroke，come to Oars，raise the oars smartly to the vertical，rest handles on footings and trim blades fore and aftC
place oars in row locks directly from the boated position or from Stand by oars positionD
complete the stroke (when rowing in ahead motion)，raise the oars with crook of elbow to about 30 degrees，swing blades forward
考题
单选题The propeller consists of a （）with several blades of helicoidal form attached to it.A
shaftB
bossC
wheelD
lever
考题
单选题Which characteristic is a disadvantage of a controllable- pitch propeller as compared to a fixed-pitch propeller? （）A
Slightly higher fuel consumptionB
Lack of directional control when backingC
Inefficient at high shaft RPMD
Some unusual handling characteristics
考题
单选题The difference between Fixed pitch propeller (FPP) and Controllable pitch propeller (CPP) is in that（）A
for FP, once fitted, the position of the blades can also be changed in operationB
for CP, once fitted, the position of the blades can also be changed in operationC
the CP type has a relatively smaller hub compared with the FP propellersD
the FP type has a relatively larger hub compared with the CP propellers
考题
单选题As the propeller turns，voids are formed on the trailing and leading edges of the propeller blades causing a loss of propulsive efficiency，pitting of the blades，and vibration. These voids are known as（）.A
advanceB
cavitationC
edgingD
slip
考题
单选题螺旋桨有四个桨叶。 （）A
The helm has four blades.B
The propeller has forty blades.C
The windlass has four blades.D
The propeller has four blades.
考题
单选题A variable pitch propeller is made （） a boss with separate blades mounted into it.A
ofB
up ofC
fromD
out
考题
单选题When viewed from astern, if the propeller revolves in a clockwise direction when going ahead, it is known as （）.A
ahead directionB
astern directionC
right-handedD
left-handed
考题
多选题Which two statements are true regarding an Ethernet collision domain?（）AThe likelihood of collisions occurring increases when a switch is used.BThe likelihood of collisions occurring increases when a hub is used.CIf a hub is used, the collision domain is limited to each device and the hub.DIf a switch is used, the collision domain is limited to each device and the switch.
考题
单选题By which of the following means is force efficiently provided to vary the pitch of the blades on a modem controllable pitch propeller?（）A
HydraulicB
MechanicalC
PneumaticD
Electrical
考题
单选题During the dock repair, when installing the tail shaft and propeller, who should be on the spot to supervise?（）A
chief engineerB
the engineerC
captainD
any member of the engine department
热门标签
最新试卷