Question: For the drawworks drum dimensions given in Exercise 1.9 and a fast line tension of 50,000 lbf, com- pare the drawworks torque when the

For the drawworks drum dimensions given in Exercise 1.9 and a fast line tension of 50,000 lbf, com- pare the drawworks torque when the

For the drawworks drum dimensions given in Exercise 1.9 and a fast line tension of 50,000 lbf, com- pare the drawworks torque when the drum is almost empty to the drawworks torque when the drum con- tains five laps. Answer: 65,104 ft-lbf empty; 85,938 ft-lbf with five laps. 1.9 A drawworks drum has a diameter of 30 in., a width of 56.25 in., and contains 1.25-in. drilling line.

Step by Step Solution

★★★★★

3.47 Rating (160 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Physics Questions!

Use the sample values given in Exercise 1 to construct a 95% confidence interval estimate of the population mean. Assume that the population has a normal distribution.

If we use the data given in Exercise 1 with two-way analysis of variance, we get the accompanying display. What do you conclude? Statdisk DF: SS: MS: Test Stat, F: Critical F: P-Value: Source:...

Use the sample data given in Exercise 1 and test the claim that arrival delay times for Flight 19 and Flight 21 have the same median. Use a 0.05 significance level. Flight 19 5 32 13 919 49 -30 -23...

For the multiple regression equation given in Exercise 1, we get R2 = 0.928. What does that value tell us?

Refer to the table of data given in Exercise 1 and use the heights and interval after times. a. Construct a scatterplot. What does the scatterplot suggest about a linear correlation between heights...

For some data sets, the F statistic will reject the null hypothesis of no difference in mean yields, but the Tukey-Kramer method will not find any pair of means that can be concluded to differ. For...

Construct a normal probability plot for the fatigue-crack propagation data given in Exercise 39 (Chapter 1). Does it appear plausible that propagation life has a normal distribution? Explain.

The potential energy per unit length for the torsion problem was given in Exercise 6.16. Using the principle of minimum potential energy, = 0 and this leads to a minimization of the following...

The dimensions of an enclosed gabled building are shown in Figure P2.13a. The external pressures for the wind load perpendicular to the ridge of the building are shown in Figure P2.13b. Note that the...

=+d. What is P(y1 , xn11 , yn), and what does this say about the prediction level associated with the interval (y1, yn)? Determine the interval and associated prediction level for the curing time...

The expected after-tax cash flows for Projects Y and Z are shown below. Both projects have an initial cash outlay of $20,000 and a required rate of return of 17%. Project Y Project Z...

1. MMSB will be entering into a contract with its holding company, Marconi SpA (MSpA), a non-tax resident, to undertake the hotel project. In spite of the uncertainties due to the Covid-19 pandemic...

The framing effect in behavioural finance refers to: strategy of timing the market to buy low and sell high. individuals make decisions based on how information is presented. practice of investing in...

Connors Construction needs a piece of equipment that can be leased or purchased. The equipment costs $100. One option is to borrow $100 from the local bank and use the money to buy the equipment. The...

To pay for your education, youve taken out $25,000 in student loans. If you make monthly payments over 15 years at 7 percent compounded monthly, how much are your monthly student loan payments?

Emily Morrison purchased a new house for $150,000. She paid $30,000 up front and agreed to pay the rest over the next 25 years in 25 equal annual payments that include principal payments plus 10...

Jim Coston was reviewing the latest income statement for Trenton Communications. For the second year in a row, the Audio division was showing a negative segment margin, and Jim thought it was time to...

Presented here are an incomplete income statement and balance sheet for Vieux Corporation. VIEUX CORPORATION Income Statement Year ended December 31, 2014 Net sales ..........................

When a salt dissolves in water to give a solution of aqueous ions, this process... Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a always...

1)A drawworks drum has a diameter of 30 in., a width of 56.25 in., and contains 1.25-in. drilling line. Calculate the approximate length offline to the first lap point. if the fast line tension is...

Given the following data for a drilling rig. Derrick height = 1 3 6 f t Weight of travelling block and hook = 2 6 , 0 0 0 l b f Wire rope size = 1 3 8 Wire rope is galvanized 6 1 9 round strand wire...

The standard 55 gallon drum is H=88 cm high, has an outer diameter of D = 61 cm and is made from 0.9 mm thick steel. You are testing the strength of such a drum. The drum is filled with air and...

A mixing drum needs to be designed to blend 150 kg cement. When mixing, the machine is inclined at angle 45 to 60 from the horizontal. After mixing is completed, the drum will be reclined to...

Assume the maximum rotating speed of the drawworks' drum is 100 RPM and that its diameter is 6 ft.a.What is the maximum possible speed for the fast line, in ft/s (hint: the drum has a...

You are operating a drilling rig with the following specifications: Number of lines: 1 0 Drawworks efficiency: 0 . 8 8 Block - and - tackle efficiency: 0 . 8 1 1 Maximum motor horsepower available: 2...