Unlike internal expanding-band brakes, the internal expanding-shoe brakes replace the
A.small brake shoes
B.spinning discs
C.rigid brake shoes
D.large brake band with a suitable friction material
A.small brake shoes
B.spinning discs
C.rigid brake shoes
D.large brake band with a suitable friction material
第1题
The ( ) brake was designed to solve the problem that small shoes would overheat or wear out, and braking power would be lost.
A.internal expanding-band
B.external contracting-band
C.disk
D.interal expanding-shoe
第2题
By the method of changing the gear ratio,the transmissions are divided into ( ),stepless, and combined transmissions.
A.fixed-ratio
B.multiple-speed
C.five-speed
D.fixed-axle
第3题
The ( ) brake was adopted in a two-ton-plus automobile to safely stop from the 70m/h and 80m/h highway speeds of the time.
A.internal expanding-shoe
B.service
C.external expanding-band
D.disc
第4题
When the tire is on a dry asphalt surface, the maximum frictional force of the tire ( without sliding) is usually between ( ) of the radial load.
A.60%-90%
B.60%-70%
C.80%-90%
D.50%-60%
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