路基翻浆根据导致其发生水类来源可分为地下水类、()、()、()、混合水类五种类型。
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Which of the following statements is correct for the design and installation of diesel engine cooling water systems?()
An alarm device with audible and visible signals is required for all cooling water systems
B. Propulsion engines with bores over 200 mm are to be fitted with cooling water jackets
C. Each totally enclosed cooling system shall be provided with a suitable head tank
Drain cocks are to be provided at the lowest points of all cylinder water jacket
德国博世(Bosch)公司已经将高压共轨系统发展到第三代,其优点是可以实现高压喷射,最高压力达到()Mpa。
A. 5
B. 10
C. 20
D. 50
关于制动控制单元BCU,下列说法错误的是()。
A. 机车配备两套单独的制动控制单元
B. 为了和CCU交换制动信号,制动控制单元与CCU的接口通过MVB网线连接
C. 停车制动信号不属于制动控制单元BCU控制