Level 1 Cost Engineer Exam Case Study Subject (Civil Engineering) (Installation)
Second question (20 points) main points
The second question is mainly a comprehensive investigation of the economic and technical analysis, program selection and optimization in the second chapter of the textbook and the knowledge points related to project bidding and bidding in the fourth chapter.
Key points include:
1. The application of comprehensive analysis method in the selection of programs specifically involves the construction plan (such as: the use of purchased commodity concrete or self-mixing concrete, the combination of a variety of construction machinery, the use of formwork and other issues), mainly the proportion of fixed costs and variable costs, direct costs and indirect costs, and ultimately seek the lowest total cost of the program. Most of these question types are based on time or quantity as a function, and the relevant cost will change with the change of quantity or time, and finally seek a critical value, and then determine the best (least cost) solution according to the duration or quantity given in the condition in the question. The question type is simple but must be smoothed out of its logical relationship, and it is generally more common to set the unknown number;
2. Minimum cost method, life cycle efficiency method. Most of these types of questions are aimed at finding the minimum cost or maximum efficiency of each program, and the difficulty lies in the comprehensive investigation of the knowledge points of the discounted time value of the funds, and remember to analyze whether the clear question requires the annual value or the initial value, or the final value. The question type is simple, but the accuracy of the main calculation, mainly the calculation of discounting;
3, the value engineering program to seek the optimization of multiple programs, the main requirements of the value index of each program, to the value index maximum as the optimal program, pay attention to the calculation of weighted sum in the function index and the calculation of 0-1, 0-4 score; the improvement of a single program, the target cost of all the functions of a program, compared with its actual cost, the largest reduction is the most priority to improve the function, pay attention to the calculation of the functional importance coefficient, and distinguish whether the total target cost is given or needed. (Note the logical relationship I mentioned in my lecture)
4, double code (time marker) network diagram of the duration cost optimization, such question types generally do not have problems, the network diagram is relatively simple, mainly pay attention to the logical relationship between the work and the change of the construction period, generally are the construction period compression and cost changes combined analysis, to determine whether to compress, how much compression, how much cost after compression.
5. The wrong questions in the bidding and bidding procedures should appear unsurprisingly. Pay attention to errors in the procedure regarding the time of sale of tender documents, the time of opening bids and the validity period of tenders, the signing of contracts, the return of deposits, etc.; pay attention to the irregularities in the amount of security deposits, the preparation of control prices, the formation of bid evaluation committees, the evaluation methods, the bidding of consortiums, the exclusion and restriction of bidders, the withdrawal of tenders, the clarification of tender documents, the issuance of the notice of winning bids, and the signing of contracts and the return of the security deposit.
6. Conceptual understanding of bidding techniques such as unbalanced quotation, increased suggestions, and multi-program quotation, and pay attention to the question type of calculating the income of different programs in combination with the discount of the time value of funds;
7. The lowest bid price method and comprehensive evaluation method calculated by the evaluation to determine the winning bidder or the winning candidate, the topic is simple, the calculation is basically error-free, but remember not to forget some small conditions;
8. Decision tree, selection of bidding plan, selection of machinery and equipment, construction plan, etc. At most secondary decision-making, pay attention to the drawing rules of the decision tree and the calculation of the expected value, if combined with the discounting of the time value of the funds, it will be somewhat difficult, pay attention to the main points of the decision tree that I said in the class (if I have listened to the class).
In this question, attention should be paid to the knowledge points about the adjustment of costs, such as the preparation of control prices and the adjustment of material costs in sub-projects.