单项选择题
The injector pump is operated by a cam which drives the plunger （）.
A.top and bottom
B.to and fro
C.up and down
D.back and forth
点击查看答案&解析
相关考题
-
单项选择题
The injector pump is operated by a cam which drives the （） up and down.
A.piston
B.drum
C.plunger
D.barrel -
单项选择题
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 -
单项选择题
The indications of a scavenge fire are excessive black smoke, （） and peeling from scavenge trunking.
A.turbo-chargers surge
B.spark seen from the drains
C.paint blistering
D.all above are right
