Question : A recent project included 1,594 square feet : 2152206
ESSAY. Write your answer in the space provided or on a separate sheet of paper.
1) A recent project included 1,594 square feet of 4  inch thick concrete slab. The cost of the concrete material for the sidewalk was $2,487. Determine the material cost for 1 square foot of sidewalk.
2) The price for 2,225  pounds of stair treads has been quoted FOB the factory. You have obtained a shipping price of $19.75/cwt to ship the stair treads from the factory to the jobsite. Determine the cost of shipping the stair treads.
3) You have been quoted $56,258.95 for an order of lumber, all of which is subject to sales tax. The price does not include sales tax. The local sales tax rate is 6.65%. How much sales tax must be paid on the lumber?
4) You have been quoted $47,268 for an order of lumber. You expect lumber prices to increase by 5.5% between now and the time you place the order. How much should you include in your bid to cover the cost of the lumber?
5) A project needs 600 each 8  foot  long 2 × 4s and 75 each 8  foot  long 2 × 6s. You have received a bid from a local lumber supplier of $3.39/each for the 2 × 4s and $4.61/each for the 2 × 6s. The supplier charges $20 for shipping on orders of this size and the local sales tax rate is 6.85%. The project is not to start for another year, so your boss wants you to include 10% for escalation. What cost would you include in your bid for this lumber?
6) Excel Quick Tip 19  1: Request for Material Quote
Determine the total cost for a lumber order consisting of the following materials.
• 121 each 2 × 4 × 8' @ $3.46/each
• 217 each 2 × 6 × 8' @ $4.90/each
The sales tax rate is 6 percent and the supplier charges a $20 deliver charge on orders less than $2,000.
The following table is used for the test questions for this chapter:
Table 1: Cycle Times (minutes) 

Observation 
Cycle Time 

Observation 
Cycle Time 

Observation 
Cycle Time 
1 
105 

11 
100 

21 
105 
2 
88 

12 
100 

22 
89 
3 
89 

13 
99 

23 
100 
4 
88 

14 
81 

24 
102 
5 
101 

15 
84 

25 
89 
6 
91 

16 
94 

26 
98 
7 
88 

17 
87 

27 
105 
8 
95 

18 
79 

28 
107 
9 
91 

19 
106 

29 
83 
10 
101 

20 
79 

30 
89 
7) Convert the output of 300 lineal feet of caulking per 8  hour day for a single mason to labor hours per lineal foot.
8) Convert the output of 150 square feet of elastomeric roofing per labor hour to labor hours per square foot.
9) A recent project included 2,000 square feet of steel decking. It took 18 labor hours to complete the installation of the steel deck. Determine the productivity in labor hours per square foot based on this historical data.
10) The cycle times in Table 1 were observed for the installation of water closets in a hotel. Determine the average cycle time.
11) The cycle times in Table 1 were observed for the installation of water closets in a hotel. Using a system efficiency of 50 minutes per hour, an adjustment factor of 0.95, and a crew size of one, determine the productivity in labor hours per water closet.
12) An operator of a paint  striping machine is painting the centerline of a road. The road is 3.5 miles long and includes 25 intersections. Each intersection is 60 feet wide, and the centerline is not painted in the intersections. When striping, the operator can paint 45 feet of line per minute. The average time it takes to get through the intersection is 2 minutes. Using a system efficiency of 50 minutes per hour, determine the productivity for striping the road in labor hours per mile.
13) The measured output for a crew installing built  up roofing is 22 squares per day. The crew consist of one foreperson, four roofers, and two helpers. Determine the productivity of the crew in labor hours per square of installed roof. Assume that the crew worked an 8  hour shift.
14) A crew needs to install 2,550 square feet of fiber cement siding. The estimated productivity is 0.038 labor hours per square foot. Determine the number of labor hours required to install the siding.
15) Using Figure 21  1 from the textbook, how many labor hours would it take to install 800 square feet of 5/8  inch oriented strand board pneumatically nailed on a roof.
16) Excel Quick Tip 20  1: Cycle Time Worksheet
The following cycle times were observed for the installation of a 4  foot by 10  foot sheet of drywall. Using an adjustment factor of 1.1, a crew size of 2, and a system efficiency of 45 minutes per hour determine the productivity in labor  hours per square foot of drywall.
Cycle Times

CT 


CT 


CT 
OBS. 
(min) 

OBS. 
(min) 

OBS. 
(min) 
1 
1.98 

11 
2.05 

21 
1.16 
2 
1.93 

12 
1.59 

22 
1.34 
3 
1.65 

13 
1.97 

23 
1.89 
4 
2.29 

14 
1.82 

24 
2.15 
5 
2.15 

15 
1.60 

25 
1.93 
6 
1.41 

16 
1.63 

26 
2.54 
7 
1.20 

17 
2.88 

27 
1.47 
8 
1.38 

18 
2.28 

28 
1.94 
9 
2.86 

19 
2.47 

29 
1.71 
10 
1.84 

20 
1.18 

30 
1.96 
17) Excel Quick Tip 20  2: Rate of Progress Worksheet
A concrete machine is pouring a highway median barrier. The machine can pour 20 feet per hour. The machine will need to stop to move around eight light poles that are integrated into the barrier. Each move will take 30 minutes. The machine is operated by a five person crew. How long will it take to pour 3,600 feet of barrier if the system efficiency is 45 minutes per hour?
18) An employee is paid $100 per month for use of her personal car on the job. How much of this payments is subject Social Security and Medicare taxes?
19) A typical electrician works 47 hours per week for 22 weeks of the year and 40 hour per week for 25 weeks of the year, and gets 5 weeks off in the form of vacation, holidays, and sick leave (for which the electricians are paid for 40 hours per week). The typical electrician is paid $39.50 per hour. The employer must comply with the overtime requirements in the Fair Labor Standards Act. Determine the wages paid to a typical electrician and the number of billable hours during a one  year period. Assume that all hours are billable except holidays, vacation, and sick leave.
20) Plumbers on a Federal project are required by the Davis  Bacon act to be paid $30.05 per hour in wages and $12.93 per hour in fringe benefits. The typical plumber works 2,000 hours per year and is paid for 240 hours of vacation per year. The employer pays $1,100 per month for the plumber's health insurance and $500 per month for workers' compensation insurance. If the employer plans on covering the $12.93 for fringe benefits by providing "bona fide" fringe benefits, has the employer provided enough "bona fide" fringe benefits? If not, how much additional "bona fide" fringe benefits must the employer provide?
21) Using the 2015 rates, determine the Social Security and Medicare taxes paid by the employer on an employee that is paid $92,476 in wages for the year.
22) Determine the state and federal unemployment taxes paid by the employer on an employee that is paid $92,476 in wages for the year. The company's state unemployment rate is 1.95% on the first $10,500 of the employee's wages. The company can take the full 5.4% credit against its federal unemployment tax.
23) Determine the cost of workers' compensation insurance for a superintendent that is paid $92,476 per year. The workers' compensation insurance rate for supervision is $3.75 per $100 of wages.
24) Determine the cost of general liability insurance for a superintendent that is paid $92,476 per year. The general liability insurance rate for supervisors is 1.88% of wages.
25) Health insurance premium for an employee and his family is $1,125 per month. The employer pays 80% of the premium and the remaining portion is deducted from the employee's paycheck. Determine the cost of the health insurance to the employer.
26) Determine the cost of retirement for a superintendent making $92,476 per year. For retirement, the company has provided the employee with access to a 401(k) plan and matches the employee's contributions to the plan at a rate of $0.75 per $1.00 contributed by the employee on the first 6% of the employee's wages for a maximum matching contribution of 4.5% of the employee's wages. The employee is expected to contribute at least 6% of his or her wages to the 401(k) plan.
27) Excel Quick Tip 21  1: Labor Rate Worksheet
During the year, the average carpenters work 48 hours per week for 40 weeks and 40 hours per week for 10 weeks. They are paid time  and  a  half for any hours over 40 hours per week and receive 10 days off per year in the form of vacation, sick leave, and holidays. The employee's health insurance is paid for entirely by the employer. Determine the average hourly cost and burden markup for the carpenters given the following information:
Item: 
Cost: 
Wages 
$24.25/hr 
Bonus 
$200 
Allowances 
None 
Social Security 
6.2% of wages to $118,500 
Medicare 
1.45% of wages 
FUTA 
0.6% of wages to $7,000 
SUTA 
2.15% of wages to $22,000 
Workers' Comp. 
$8.32 per $100 of wages 
General Liability 
0.78% of wages 
Health Insurance 
$258/month 