subject

Engineering, 09.11.2019 00:31 ymuttmutt3890

Which of the following is not true about hydraulic systems?
a. over half of all system problems are traced directly back to the oil
b. fire-resistant fluid should be used in applications where human safety is of concern
c. hydraulic fluid must have good lubricity to prevent wear between closely fitted working parts
d. in hydraulic systems, the operating temperatures must be kept between 170°f and 180°f
e. none of the above

ansver

Answers: 1

Show answers

Another question on Engineering

question

Engineering, 04.07.2019 18:10

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

Answers: 2

question

Engineering, 04.07.2019 18:10

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

Answers: 3

question

Engineering, 04.07.2019 18:10

Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.

Answers: 1

question

Engineering, 04.07.2019 18:10

The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length

Answers: 2

You know the right answer?

Which of the following is not true about hydraulic systems?
a. over half of all system probl...

Questions

question

English, 07.08.2019 06:10

3. williams's poem and brueghel's painting share the same subject. in your opinion, which creates amore powerful emotional response in the reade...

question

Mathematics, 07.08.2019 06:10

4. write an equation that models your data. use variables of weight, w, and distance, d. (you will have touse one of your data points to find yo...

question

Health, 07.08.2019 06:10

5. reference the guidelines for the evaluation and management section of the cpt code book. identify the four levels of the “extent of examination per...

question

English, 07.08.2019 06:10

4. the unnamed setting of “the story of an hour,” by kate chopin, is probably a dilapidated shack in the wilderness.truefalse5. in “...

question

Mathematics, 07.08.2019 06:10

2. for which values of k are there no solutions, many solutions, or a unique solution to each system? a. b. 13x-3y - k kx +y-1 2x-4y +2z 0...

question

Mathematics, 07.08.2019 06:10

3. true of false (if true, prove the statement, if false, gie a counterexample) i) if a and b are subsets of the real numbers such that ac b, then sup...

question

Business, 07.08.2019 06:10

26. friden company has budgeted sales and production over the next quarter as follows: the company has 20,000 units of product on hand at april 1. a...

question

Mathematics, 07.08.2019 06:10

26. let s be the set of positive integers defined by to 913 basis step: 1e s recursive step: if n e s, then 3n+2 e s and n2 e s. a) show that if n e...

question

Mathematics, 07.08.2019 06:10

2.1.4 journal: domain and rangemathematics sem 1namedatescenario: game nightinstructions: • view the video found...

question

Physics, 07.08.2019 06:10

2. the equilibrium constant kp for the reaction pcl5(g) ⇌ pcl3(g) + cl2(g) is 1.05 atm at 250ºc. the reaction starts with a mixture of pcl5, pcl3, and...

question

Business, 07.08.2019 06:10

(ignore income taxes in this problem.) the budget method that maintains a constant twelve-month planning horizon by adding a new month on the end as t...

question

Business, 07.08.2019 06:10

In terms of ben's place in the big meet, what is his marginal productivity of the number of yards he practices? is there diminishing marginal product...

question

Business, 07.08.2019 06:10

In a statement of cash flows using the indirect method, an increase in available-for-sale securities due to an increase in their fair value should be...

question

Chemistry, 07.08.2019 06:10

A125 g sample of iron (iii) bromide, febr3, is weighed out on a balance. (a) how many moles of the compound are present? (b) how many iron (iii) ions...

question

Mathematics, 07.08.2019 06:10

Exit polling is a popular technique used to determine the outcome of an election prior to results being tallied. suppose a referendum to increase fund...

question

Social Studies, 07.08.2019 06:10

Who makes the following statement about culture? “culture is a dynamic system of rules, explicit, and implicit, established by groups in order to ens...

question

Business, 07.08.2019 06:10

The purchase of treasure stock is: a) none of the above is correctb) reported as a financing activity in the statement of cash flows. c) reporting as...

question

Business, 07.08.2019 06:10

Suppose that two factors have been identified for the u. s. economy: the growth rate of industrial production, ip, and the inflation rate, ir. ip is...

question

Engineering, 07.08.2019 06:10

Aspecimen of a 4340 steel alloy with a plane strain fracture toughness of 54.8 mpa (50 ksi ) is exposed to a stress of 1985 mpa (287900 psi). assume t...

question

Business, 07.08.2019 06:10

The minimum feasible long-run average cost for firms in a perfectly competitive industry is $36 per unit. if every firm in the industry currently is p...

More questions: Engineering Another questions

Questions on the website: 13722367