题目内容

A cost centre has an overhead absorption rate of $4.25 per machine hour, based on a budgeted activity level of 12,400 machine hours.In the period covered by the budget, actual machine hours worked were 2% more than the budgeted hours and the actual overhead expenditure incurred in the cost centre was $56,389.What was the total over or under absorption of overheads in the cost centre for the period?

A. $2,635 over absorbed
B. $2,635 under absorbed
C. $3,689 over absorbed
D. $3,689 under absorbed

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A company uses an overhead absorption rate of $3.50 per machine hour, based on 32,000 budgeted machine hours for the period. During the same period the actual total overhead expenditure amounted to $108,875 and 30,000 machine hours were recorded on actual production.By how much was the total overhead under or over absorbed for the period?

A. Under absorbed by $3,875
B. Under absorbed by $7,000
C. Over absorbed by $3,875
D. Over absorbed by $7,000

1. 完成一个学生信息调查卡程序,完善各种事件,并显示最后结果(参考教材第10章课后论述题2-1)

以下关于轴力的说法中,错误的是?

A. 拉压杆的内力只有轴力
B. 轴力的作用线与杆轴重合
C. 轴力是沿杆轴作用的外力
D. 轴力与杆的横截面和材料无关

空心圆轴受轴向拉伸时,受力在弹性范围内,它的。

A. 内外径都减小
B. 外径减小,内径增大
C. 内外径都增大
D. 外径增大,内径减小

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