题目内容

The Safe Soap Co makes environmentally-friendly soap using three basic ingredients. The standard cost card for one batch of soap for the month of September was as follows:
The budget for production and sales in September was 120,000 batches. Actual production and sales were 136,000 batches. The actual ingredients used were as follows:
Required:
(a) Calculate the total material mix variance and the total material yield variance for September. (8 marks)
(b) In October the materials mix and yield variances were as follows:
Mix: $6,000 adverse
Yield: $10,000 favourable
The production manager is pleased with the results overall, stating:
‘At the beginning of September I made some changes to the mix of ingredients used for the soaps. As I expected, the mix variance is adverse in both months because we haven’t yet updated our standard cost card but, in both months, the favourable yield variance more than makes up for this. Overall, I think we can be satisfied that the changes made to the product mix are producing good results and now we are able to produce more batches and meet the growing demand for our product.’
The sales manager, however, holds a different view and says:
‘I’m not happy with this change in the ingredients mix. I’ve had to explain to the board why the sales volume variance for October was $22,000 adverse. I’ve tried to explain that the quality of the soap has declined slightly and some of my customers have realised this and simply aren’t happy but no-one seems to be listening. Some customers are even demanding that the price of the soap be reduced and threatening to go elsewhere if the problem isn’t sorted out.’
Required:
(i) Briefly explain what the adverse materials mix and favourable materials yield variances indicate about production at Safe Soap Co in October.
Note: You are NOT required to discuss revision of standards or operational and planning variances. (4 marks)
(ii) Discuss whether the sales manager could be justified in claiming that the change in the materials mix has caused an adverse sales volume variance in October. (3 marks)

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Jamair was founded in September 2007 and is one of a growing number of low-cost airlines in the country of Shania. Jamair’s strategy is to operate as a low-cost, high efficiency airline, and it does this by:
– Operating mostly in secondary cities to reduce landing costs.
– Using only one type of aircraft in order to reduce maintenance and operational costs. These planes are leased rather than bought outright.
– Having only one category of seat class.
– Having no pre-allocated seats or in-flight entertainment.
– Focusing on e-commerce with customers both booking tickets and checking in for flights online.
The airline was given an ‘on time arrival’ ranking of seventh best by the country’s aviation authority, who rank all 50 of the country’s airlines based on the number of flights which arrive on time at their destinations. 48 Jamair flights were cancelled in 2013 compared to 35 in 2012. This increase was due to an increase in the staff absentee rate at Jamair from 3 days per staff member per year to 4·5 days.
The average ‘ground turnaround time’ for airlines in Shania is 50 minutes, meaning that, on average, planes are on the ground for cleaning, refuelling, etc for 50 minutes before departing again. Customer satisfaction surveys have shown that 85% of customers are happy with the standard of cleanliness on Jamair’s planes.
The number of passengers carried by the airline has grown from 300,000 passengers on a total of 3,428 flights in 2007 to 920,000 passengers on 7,650 flights in 2013. The overall growth of the airline has been helped by the limited route licensing policy of the Shanian government, which has given Jamair almost monopoly status on some of its routes. However, the government is now set to change this policy with almost immediate effect, and it has become more important than ever to monitor performance effectively.
Required:
(a) Describe each of the four perspectives of the balanced scorecard. (6 marks)
(b) For each perspective of the balanced scorecard, identify one goal together with a corresponding performance measure which could be used by Jamair to measure the company’s performance. The goals and measures should be specifically relevant to Jamair. For each pair of goals and measures, explain why you have chosen them. (9 marks)

The Hi Life Co (HL Co) makes sofas. It has recently received a request from a customer to provide a one-off order of sofas, in excess of normal budgeted production. The order would need to be completed within two weeks. The following cost estimate has already been prepared:
Notes
1 The fabric is regularly used by HL Co. There are currently 300 m2 in inventory, which cost $17 per m2. The current purchase price of the fabric is $17·50 per m2.
2 This type of wood is regularly used by HL Co and usually costs $8·20 per m2. However, the company’s current supplier’s earliest delivery time for the wood is in three weeks’ time. An alternative supplier could deliver immediately but they would charge $8·50 per m2. HL Co already has 500 m2 in inventory but 480 m2 of this is needed to complete other existing orders in the next two weeks. The remaining 20 m2 is not going to be needed until four weeks’ time.
3 The skilled labour force is employed under permanent contracts of employment under which they must be paid for 40 hours’ per week’s labour, even if their time is idle due to absence of orders. Their rate of pay is $16 per hour, although any overtime is paid at time and a half. In the next two weeks, there is spare capacity of 150 labour hours.
4 There is no spare capacity for semi-skilled workers. They are currently paid $12 per hour or time and a half for overtime. However, a local agency can provide additional semi-skilled workers for $14 per hour.
5 The $3 absorption rate is HL Co’s standard factory overhead absorption rate; $1·50 per hour reflects the cost of the factory supervisor’s salary and the other $1·50 per hour reflects general factory costs. The supervisor is paid an annual salary and is also paid $15 per hour for any overtime he works. He will need to work 20 hours’ overtime if this order is accepted.
6 This is an apportionment of the general administration overheads incurred by HL Co. Required: Prepare, on a relevant cost basis, the lowest cost estimate which could be used as the basis for the quotation. Explain briefly your reasons for including or excluding each of the costs in your estimate.
Required:
Prepare, on a relevant cost basis, the lowest cost estimate which could be used as the basis for the quotation. Explain briefly your reasons for including or excluding each of the costs in your estimate.

背景：某施工单位承建一矿井风井井筒及井下二、三期工程的施工任务，该井筒直径为6.0m，井深500m。为加快井筒施工速度，施工单位布置了2台JKZ2.8/15.5提升机配2个3m3吊桶出矸，施工组织设计中设备一览表显示，该井筒还布置了0.6m3抓岩机，排水卧泵、压风管、供水管、溜灰管、风筒、动力电缆、通讯、监控及信号电缆，由于风筒较轻，采用单绳悬吊。
井筒施工到430m时，早班工人打好炮眼，装好药后升井，放炮由地面操作放炮，班长带领吊盘信号工及6名出渣工人乘吊桶准备下井，班长指令井口信号工发令下放吊桶，吊桶到达吊盘位置停止后，吊盘信号工下到吊盘上，发现风筒在吊盘处脱节，班长安排吊盘信号工处理，吊桶继续运行到达工作面，由于炮烟浓度较大，视线不清，吊盘信号工没有及时发出停罐信号，致使发生吊桶蹲罐倾倒事故，造成1人死亡，其余人员被炮烟熏倒，后经抢救，5人脱险，1人死亡。
问题：
1、该风井井筒施工的提升设备选型及风筒布设有何不妥之处？说明理由并给出正确做法。
2、为保证安全和正确施工，该井筒布置尚缺少哪些设施？
3、造成本次事故的直接原因有哪些？应该采取什么措施避免同类事故发生？
4、按《生产安全事故报告和调查处理条例》，该井筒施工的伤亡事故属哪一等级？该等级的划分标准是什么？

背景：一级建造师证书领取中某单位承建一矿井主要运输大巷，巷道顶板和两帮为泥岩与泥质砂岩互层，底板为泥岩，岩石的单轴抗压强度平均为10MPa左右，巷道设计为直墙半圆拱形，净宽3.8m，净断面11.5m2，巷道采用锚喷支护，锚杆长度1.6m，间排距0.8m*0.8m，抗拔力70KN，喷射混凝土强度C20，厚度100mm。
施工单位根据设计要求和自身特点编制了施工作业规程规定：该巷道施工采用“四六”工作制，巷道掘进实施三掘一喷，循环掘进进尺2.0m，巷道支护采用单个树脂药卷锚固，锚固长度300mm，喷混凝土支护一次喷射完成。
该巷道施工一段后发现断面变形较大，底鼓明显。监理单位组织月度验收时，对施工单位自检记录进行了检查，其中：巷道断面实测宽度尺寸的自检记录如表4;锚杆抗拔力有每30m一组，共5组(每组三根锚杆)的自检记录，其中三组中均有一根锚杆抗拔力达不到合格要求，质量员认为抗拔力平均值能达到合格要求，于是自检结论确定为合格。监理单位按验收规范进行了复检，结果发现多数锚杆抗拔力仍然达不到合格要求。为查清锚杆抗拔力的问题，监理和施工人员一起按相应施工规范和作业规程在实验室对锚杆锚固情况进行了试验，发现锚杆的抗拔力均达不到设计要求。
根据巷道变形越来越严重的情况和此次检查发现的质量问题，业主自行决定对施工单位提出索赔，要求施工单位承担所有的损失，同时保证巷道的质量和安全使用，要求在该段巷道断面内增加架棚支护。施工单位对此提出异议，并认为可以对不合格的锚杆进行重新锚固或在其附近补打锚杆，以满足要求。
表4
实测巷道断面宽度尺寸和设计偏差mm
自我评定
编号
中线左帮
中线右帮
全宽
验收标准
结论
整体评价
断面1
50
100
150
0-150
合格
合格
断面2
-20
50
30
合格
断面3
-50
100
50
合格
断面4
10
20
30
合格
断面5
40
60
100
合格
问题：
1、施工单位编制的施工作业规程存在哪些问题？
2、施工单位进行的质量自检和评定存在哪些错误做法？
3、指出业主的索赔和对该质量问题处理中的不妥之处，并给出正确的做法;
4、针对巷道变形问题，可采用哪些合理的支护技术和措施？
5、影响锚杆支护质量的因素主要有哪些？针对施工单位作业规程内容，说明提高该巷道锚杆拉拔力的方法。