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【简答题】
液压系统由哪几个部分组成?请结合台车各举一个实例。
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【多选题】一般数控机床主轴伺服系统主要对( )进行控制。
A.
功率
B.
机械位移
C.
角度
D.
速度
E.
转矩
【单选题】The allocation base for an asset is:
A.
Its service life.
B.
The excess of its cost over residual value.
C.
The difference between its replacement value and cost.
D.
The amount allowable under MACRS.
【判断题】No matter which method is used, any amount of the allocation base attributable to the service department whose cost is being allocated is always ignored.
A.
正确
B.
错误
【判断题】To facilitate the allocation of manufacturing overhead to each job, we calculate a predetermined overhead rate after the period begins. The rate is calculated by dividing the total actual manufacturin...
A.
正确
B.
错误
【单选题】某加工中心在主轴转速指令为零时,主轴仍往复转动,调整零速平衡和漂移补偿也不能消除故障,这说明()。
A.
主轴转速偏离指令值
B.
主轴有定位抖动
C.
主轴伺服系统受到外界干扰
D.
主轴转速与进给不匹配
【单选题】The law firm of Smith & Jones has a staff of 30 lawyers and administrative staff. Budgeted total costs of the firm total $4,000,000 of which $2,500,000 is direct-labor costs. Assuming that the remain...
A.
38 of direct-labor cost
B.
60% of direct-labor cost
C.
63% of direct-labor cost
D.
160% of direct-labor cost
【单选题】当板厚相同时,立焊电流I立与平焊电流I平的关系是 。
A.
I立>I平
B.
I立=I平
C.
I立
D.
不变
【简答题】Table 8-12 in the text allocates joint costs using net realizable value as the allocation base. What critical assumptions underlie the ysis in Table 8-12? That is, under what circumstances can t...
【简答题】Anderson Construction assembles residential houses. It uses a job-costing system with two direct-cost categories (direct materials and direct labor) and one indirect-cost pool (assembly support). Dire...
【单选题】伺服系统与CNC位置控制部分构成( )系统,该系统主要有两种,即进给伺服系统和主轴驱动系统。
A.
位置伺服系统
B.
检测装置
C.
进给驱动系统
D.
机械传动系统
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