更多"A-frames are mounted on the bed pla"的相关试题:
[单项选择]（） are mounted on and bolted to the bed-plate cross girders.
A. The crankshaft
B. The crankcase
C. The guide-ways
D. The frames
[单项选择]The bed-plate is secured in the longitudinal direction by means of bolts known as （）.
A. end-chock bolts
B. side-chock bolts
C. through bolts
D. tie rods
[单项选择]You should frequently compare drum-mounted and remote-reading water level indicators（） between these have contributed to failures because of overheating through shortage of water, when a boiler was being oil-fired.
A. descriptions
B. discrepancies
C. different
D. deflections
[单项选择]The NAVTEX receiver can be mounted on（）.
A. on the bridge
B. in the coast station
C. on the forecastle
D. on starboard side
[单项选择]The crane is usually mounted on a pedestal to offer adequate （） to the operator.
A. time
B. space
C. length
D. visibility
[单项选择]On the top of the cylinder is mounted the cylinder cover which is pressed onto （） of the cylinder liner by means of nuts and studs.
A. the camshaft
B. the flange
C. the ridge
D. the bulge
[单项选择]A large metallic device，mounted directly in the piping (usually located at the dock near the point where the vapor hose is attached)，designed to prevent the passage of a rapidly moving flame through the piping is called a（）.
A. flame arrestor
B. flame screen
C. detonation arrestor
D. detonation blocker
[单项选择]Some cranes are mounted in pairs on a common platform which can be rotated through（）.
A. 360°
B. 270°
C. 180°
D. 90°
[单项选择]The（） of the telemotor is mounted on the steering gear.
A. transmitter
B. receiver
C. pipes
D. charging unit
[单项选择]On top of scavenging air box is mounted a strong cast iron frame for each cylinder known as（）
A. cooling jacket
B. cylinder liner
C. piston crown
D. cylinder cover
[单项选择]（） is made of a boss with separated blades mounted into it.
A. A variable pitch propeller
B. A variable pitch nut
C. A fixed pitch parallel
D. A fixed pitch screw
[单项选择]（） are mounted in pairs to protect the boiler against overpressure.
A. Safety valves
B. Water tubes
C. Steam stop valves
D. Blow down valves
[单项选择]The terms ceiling and margin plate are associated with the（）.
A. crew's quarters
B. engine room
C. main deck
D. tank top
[单项选择]The margin plate is the（）.
A. outboard strake of plating on each side of an innerbottom
B. outer strake of plating on each side of the main deck of a vessel
C. plate which sits atop the center vertical keel
D. uppermost continuous strake of plating on the shell of a vessel
[单项选择]The oil sump, a light welded design, is mounted on the engine block from below and sealed by （）
A. O-ring
B. gasket
C. washer
D. packing
[单项选择]The safety valves are mounted in pairs to （） the boiler against overpressure.
A. use
B. release
C. protect
D. effect
