更多"The lower end of each piston rod is"的相关试题:
[单项选择]The lower end of each piston rod is reduced in diameter to fit a bore in the cross-head, this being secured to the piston rod by （）.
A. a bolt
B. a cap
C. a disc
D. a nut
[单项选择]The section of each end of a barge which is heavily reinforced to take the pressure of pushing is called the（）.
A. Headlog
B. Towhead
C. Collision bulkhead
D. Bullnose
[单项选择]The connecting rod large end bearing shell generally has tags for location and oil grooves round the center of its axial length which correspond with grooves in the （） through which oil is transmitted up the rod to lubricate the small end.
A. connecting rod
B. piston rod
C. bearing housing
D. none of the above
[单项选择]The small end of the connecting rod is attached to the piston with a （）.
A. crankpin
B. sliding wedge
C. wrist pin
D. torque bashing
[单项选择]The design of the connecting rod large end bearing is similar to that of the mainbearings Whats the meaning of "that" in the sentence above?（）
A. the connecting rod
B. large end bearing
C. the main bearing
D. the design
[单项选择]Planning to stow（）in the end lower holds will result in much broken stowage.
A. large crates or cases
B. small curved items
C. drums
D. filler cargo
[单项选择]
An acceptable means of tightening connecting rod and main bearing cap bolts is to measure the （）
Ⅰ.torque applied to each nut and bolt assembly
Ⅱstretch of each nut before and after tightening
A. Ⅰonly
B. Ⅱ only
C. both Ⅰ and Ⅱ
D. neither Ⅰ nor Ⅱ
[单项选择]The connecting rod is fitted between the crosshead and the crankshaftI t transmits the firing force, and together with the crankshaft converts the （）motion to a （）motion.
A. rotary；reciprocating
B. up and down；fore and aft
C. fore and aft；up and down
D. up and down；rotary
[单项选择]Diesel engine main and connecting rod precision bearings are made in halvesEach half exceeds one-half the bearing circumference by a small amountThe small amount is termed （）.
A. clearance
B. crush
C. pitch
D. thrust
[单项选择]Because the top of the connecting rod swings about the pin and changes direction each time the piston reaches mid-stroke, the relative speed between bearing and pin at mid-stroke is zero, （）to a maximum as the piston approaches top or bottom dead center and then （） back to zero again as the piston approaches mid-stroke and the connecting rod changes direction.
A. accelerates；decelerates
B. accelerates；accelerates
C. decelerates；decelerates
D. decelerates；accelerates
[单项选择]The control rod of a steering gear pump is attached at its outer end to （）.
A. the hunting gear
B. the rudder stock
C. the rudder controller
D. the feedback unit
[单项选择]（） is fully floating in both connecting rod small end and the piston skirt.
A. The piston rod
B. The cross head pin
C. The gudgeon pin
D. The crank-pin
[单项选择]A lower thermostatic temperature setting will provide a desired degree of comfort in a room where （）
A. low relative humidity is maintained
B. triple banded squirrel cage fans are used
C. air circulation is a maximum
D. high relative humidity is maintained
[单项选择]The （） returns the pump operating rod to mid position as soon as the helmsman stops turning the wheel.
A. hunting gear
B. cut-off level
C. servo-motor
D. swivel block
[单项选择]For one or two types of engine,the piston and rod can be withdrawn downwards from the cylinder into the crankcase and then out through （）.
A. the cylinder cover
B. the bottom of bed-plate
C. the sump
D. the crankcase door
