更多"With reference to an axial piston p"的相关试题:
[单项选择]With reference to a radial piston pump, which one of the following statements is false?（）
A. Surrounding the fixed shaft is a hollow shaft
B. This hollow shaft carries radial bores
C. Each bore is fitted with a well-lapped plunger
D. There are always even numbers of bores
[单项选择]Which pump is the self-priming pump?（）
A. turbine
B. centrifugal
C. ejector
D. mixed flow
[单项选择]Which pump installation would require an external source of sealing water?（）
A. Main circulator pump jacket water cooling
B. Salt water service pump
C. Auxiliary condensate pump
D. Bilge pump
[单项选择]An axial轴向 piston pump differs from a radial piston pump as the pistons of an axial piston pump are positioned （）.
A. radially from the shaft
B. parallel to each other and to the shaft
C. parallel to each other but at a right angle to the shaft
D. at an angle to each other and to the shaft
[单项选择]The volute pump is one in which the impeller （）.
A. discharges into a gradually widening channel
B. has stationary diffuser vanes
C. produces no kinetic energy
D. All of the above are true
[单项选择]An axial piston, variable stroke pump is used in a vessels hydraulic steering gearUnder pressure, oil continually leaks out from between the valve plate/cylinder barrel and will（）.
A. cause loss of hydraulic oil from the system
B. result in extreme damage to the pump
C. cause damage to the pump ff not continually drained from the pump casing
D. result in the system high side pressure to substantially drop off
[单项选择]An overtaking situation would be one in which one vessel is approaching another from more than how many degrees abaft the beam? （）
A. 0°
B. 10°
C. 22.5°
D. None of the above
[单项选择]Which of the following centrifugal pump components converts the liquid kinetic energy of velocity to the potential energy of pressure?（）
A. Impeller
B. Electric motor
C. Volute
D. Eye
[单项选择]Which of the following statements about pump operations is NOT a correct statement?（）
A. In order for a fluid to be pumped, a fluid must be made to flow
B. A substance must be cold in order for it to be pumped
C. The kinetic energy imparted by the pump can be used to force a liquid through a hydraulic system
D. A pump must receive its energy from an external source
[单项选择]With respect to centrifugal pump impellers, which of the following descriptions represents the correct centrifugal pump classification? （）
A. Single stage or multistage
B. High pressure or low pressure
C. Open or close coupled
D. Horizontal or vertical
[单项选择]Which features of a centrifugal pump reduce the need for renewing worn impellers and pump casings?（）
A. Close radial clearance between impeller hub and casing
B. Low rotational speed of impeller
C. Removable end plate
D. Replaceable impeller and casing wearing rings
[单项选择]Which one of the following statements best explains the split horizon rule?（）
A. Only routers can split boundaries (horizons) between networks in separate AS numbers.
B. Each AS must keep routing tables converged to prevent dead routes from being advertised across boundaries.
C. Once a route is received on an interface, advertise that route as unreachable back out the same interface.
D. Information about a route should never be sent back in the direction from which the original update came.
[单项选择]Which one is not true?（）
A. Two main areas of skill are involved in the construction of ship
B. There are distinct divisions in responsibilities between naval architects and marine engineers
C. Each ship will assume varying proportions according to its type
D. Ships can be divided into different categories from different perspectives
[单项选择]The injector pump is operated by a cam which drives （） up and down.
A. the needle valve
B. the plunger
C. the piston
D. the cylinder
[单项选择]Which one of the binary number ranges shown below corresponds to the value of the first octet in Class B address range?（）
A. 10000000-11101111
B. 11000000-11101111
C. 10000000-10111111
D. 10000000-11111111
E. 11000000-10111111
[单项选择]Which one of the following parameters is the very first thing that needs to be configured as part of the IGRP routing process?（）
A. The wild card mask
B. The IP address
C. The IP address mask
D. The metric weights
E. The Autonomous System number
[单项选择]Which one of the following EIGRP commands can check the IP addresses of the adjacent neighbors, as well as verifying the EIGRP retransmit intervals and queue counts?（）
A. TK1#show ip eigrp adjacency
B. TK1#show ip eigrp topology
C. TK1#show ip eigrp interfaces
D. TK1#show ip eigrp neighbors
E. None of the above
