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#6) If a project has an estimated production of 400 LCY/hr., find the number of haulers...
#5) Find the load time if a 2 LCY articulated wheel loader transfers average material from...
#5) Find the load time if a 2 LCY articulated wheel loader transfers average material from a stockpile to 18 CY trucks. Assume that volume controls and that travel time can be neglected. Assume that the average material fill factor is 90%and the loader production is at 100% efficiency #6) If a project has an estimated production of 400 LCY/hr., find the number of haulers needed (N) if the load time is determined to be 3 minutes and the truck...
Correct answer is 238 cy/hr. How do I get this? A contractor has a project involving...
Correct answer is 238 cy/hr. How do I get
this?
A contractor has a project involving the construction of a small manufacturing plant. The contractor has selected a borrow site and has decided to use 27-cubic yard dump trucks to haul the needed fill material. The contractor has decided to use a hydraulic excavator with a shovel attachment to load the trucks. The excavator has expected productivity as 422cy/hr at 100% efficiency, and the truck cycle time excluding loading is...
Excavation and removal of earth has to be done in a road project. One excavator with...
Excavation and removal of earth has to be done in a road
project. One excavator with a 0.80 cy bucket and a bucket fill
factor of 0.9, is used to cut the soil and load the trucks. A total
of 5 trucks are being used for transportation of the soil. Each
truck can transport 10 cy. The dump site is 30 miles away and the
trucks travel at 40 mph, and have to travel 60 miles. The
contractor is planning...
please help me. Problem 2: Evaluate cost and production using a 3-cy hoe to load wet gravel (2980 lb/lcy) into 14 cy...
please help me.
Problem 2: Evaluate cost and production using a 3-cy hoe to load wet gravel (2980 lb/lcy) into 14 cy trucks. Assume a bucket fill factor of 105% and that the hoe bucket swing cycle time is 24 sec. the truck empty weight is 36860 lb, and a rated payload of 40000 lb. Dump time will be 1.3 min. the haul distance is 2.5 miles from the pit to the plant up a 3% grade. The rolling resistance...
please help me , show all steps , please make your font clear.. Problem 1: A...
please help me , show all steps , please make your
font clear..
Problem 1: A project to move packed earth requires you to decide whether to use a dozer/scraper operation or excavator/truck operation. Determine the most economical operation based on the dozer/scraper operation estimated at S6.25/lcy All equipment carries a rated heaped capacity, has a fill factor of 105%, and works 45-min hours. Excavators costs $95/hr (including operator), cycle time is 0.28 min, and bucket heaped capacity is 3...
on and Volume Change: 10 points An earthwork project has the following conditions: Borrow Site -soil...
on and Volume Change: 10 points An earthwork project has the following conditions: Borrow Site -soil density is 120 PCF with water content w = 15% Fill Site soil density is 135 PCF with water content w 17 % - Unit weight of water: 8.34 lb per gallon a. How many gallons of water must be added to the borrow per cubic yard and 20 Points ph 4. Dozer Production material pped per hour (9CHd atteched Cat Estinated Ripper Prd...
Please answer and thoroughly explain the question ( I am more interested in UNDERSTANDING how to ...
please answer and thoroughly explain the question ( I am more
interested in UNDERSTANDING how to solve the question)
Solve question #7
3. Scrapers and a dozer are being used to haul dirt on a jobsite. The scrapers hold 38 cubic yards each. The scrapers cost 305/hr and have a Haul-Return cycle of 6.3 minutes. The dozer cost is $125/hr and has a spot time of 15 seconds and a load time of 25 seconds. Using a Maneuver and Dump...
1. A milling machine costing $60,000 has an estimated useful production life of 40,000 hours. The...
1. A milling machine costing $60,000 has an estimated useful production life of 40,000 hours. The following data are relevant for the production of a certain component using the milling machine: General overhead cost per hour $16.00 Tooling cost $400.00 Anticipated tool life of tooling 16 hours of production Setting up time 2 hours Setting up cost per hour $65.00 Time to produce each component 6 minutes Production cost per hour $10.00 Material cost per component $15.80 The component is...
The Europa Company has a large warehouse in Florida to store its inventory of goods until...
The Europa Company has a large warehouse in Florida to store its inventory of goods until they are needed by the company’s many furniture stores in that area. A single crew with four members is used to unload and/or load each truck that arrives at the loading dock of the warehouse. Management currently is downsizing to cut costs, so a decision needs to be made about the future size of this crew. Trucks arrive randomly at the loading dock at...
3. The White Noise Corporation has estimated the following Cobb-Douglas production function using monthly observations for...
3. The White Noise Corporation has estimated the following Cobb-Douglas production function using monthly observations for the past two years: ln Q = 1.386 + 0.20 ln K + 0.30 ln L + 0.25 ln N where Q is the number of units of output, K is the number of units of capital, L is the number of unit of labor, and N is the number of units of raw materials. With respect to the above results, answer the following...
#5) Find the load time if a 2 LCY articulated wheel loader transfers average material from a stockpile to 18 CY trucks. Assume that volume controls and that travel time can be neglected. Assume that the average material fill factor is 90%and the loader production is at 100% efficiency #6) If a project has an estimated production of 400 LCY/hr., find the number of haulers needed (N) if the load time is determined to be 3 minutes and the truck...
Correct answer is 238 cy/hr. How do I get
this?
A contractor has a project involving the construction of a small manufacturing plant. The contractor has selected a borrow site and has decided to use 27-cubic yard dump trucks to haul the needed fill material. The contractor has decided to use a hydraulic excavator with a shovel attachment to load the trucks. The excavator has expected productivity as 422cy/hr at 100% efficiency, and the truck cycle time excluding loading is...
Excavation and removal of earth has to be done in a road
project. One excavator with a 0.80 cy bucket and a bucket fill
factor of 0.9, is used to cut the soil and load the trucks. A total
of 5 trucks are being used for transportation of the soil. Each
truck can transport 10 cy. The dump site is 30 miles away and the
trucks travel at 40 mph, and have to travel 60 miles. The
contractor is planning...
please help me.
Problem 2: Evaluate cost and production using a 3-cy hoe to load wet gravel (2980 lb/lcy) into 14 cy trucks. Assume a bucket fill factor of 105% and that the hoe bucket swing cycle time is 24 sec. the truck empty weight is 36860 lb, and a rated payload of 40000 lb. Dump time will be 1.3 min. the haul distance is 2.5 miles from the pit to the plant up a 3% grade. The rolling resistance...
please help me , show all steps , please make your
font clear..
Problem 1: A project to move packed earth requires you to decide whether to use a dozer/scraper operation or excavator/truck operation. Determine the most economical operation based on the dozer/scraper operation estimated at S6.25/lcy All equipment carries a rated heaped capacity, has a fill factor of 105%, and works 45-min hours. Excavators costs $95/hr (including operator), cycle time is 0.28 min, and bucket heaped capacity is 3...
on and Volume Change: 10 points An earthwork project has the following conditions: Borrow Site -soil density is 120 PCF with water content w = 15% Fill Site soil density is 135 PCF with water content w 17 % - Unit weight of water: 8.34 lb per gallon a. How many gallons of water must be added to the borrow per cubic yard and 20 Points ph 4. Dozer Production material pped per hour (9CHd atteched Cat Estinated Ripper Prd...
please answer and thoroughly explain the question ( I am more
interested in UNDERSTANDING how to solve the question)
Solve question #7
3. Scrapers and a dozer are being used to haul dirt on a jobsite. The scrapers hold 38 cubic yards each. The scrapers cost 305/hr and have a Haul-Return cycle of 6.3 minutes. The dozer cost is $125/hr and has a spot time of 15 seconds and a load time of 25 seconds. Using a Maneuver and Dump...
1. A milling machine costing $60,000 has an estimated useful production life of 40,000 hours. The following data are relevant for the production of a certain component using the milling machine: General overhead cost per hour $16.00 Tooling cost $400.00 Anticipated tool life of tooling 16 hours of production Setting up time 2 hours Setting up cost per hour $65.00 Time to produce each component 6 minutes Production cost per hour $10.00 Material cost per component $15.80 The component is...
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