Are Formed Where Bumps From Two Surfaces Comes Into Contact?

Are Formed Where Bumps From Two Surfaces Comes Into Contact?
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Which one of the following is not the law of dry friction? a.If friction is neglected, the reactions are always normal to the surfaces on contact b.Friction always acts to oppose the relative motion of the free body c.If static friction is acting, the value of the friction force may vary from zero to its maximum value d.The force of friction is always normal to the surface e.All of the above

Description : Which one of the following is not the law of dry friction? a.If friction is neglected, the reactions are always normal to the surfaces on contact b.Friction always acts to oppose the relative motion of ... its maximum value d.The force of friction is always normal to the surface e.All of the above

Last Answer : d. The force of friction is always normal to the surface

During maintenance of circuit breakers, _______________. A. always smooth roughened contact surfaces with a file B. never pass more than rated breaker current through the overload heater element C. inspect for wear and misalignment of main contacts D. assume heater elements installed are of correct size

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Which of the following statements is true concerning the cleaning of electrical contacts? A. Compressed air should be used to blow out metallic dust. B. Magnetic brushes should be used to remove metallic dust. C. The contact surfaces should be greased to increase contact resistance. D. Delicate parts should be cleaned with a brush and an approved safety solvent.

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A thick film bearing is a bearing (A) Where the surfaces of journal and the bearing are completely separated by a film of lubricant (B) Where the surfaces of journal and the bearing are partially separated by a film of lubricant and there is partial metal to metal contact (C) Where the surfaces of journal and the bearing are separated by a film created by elastic deflection of parts (D) Where there is no lubricant

Description : A thick film bearing is a bearing (A) Where the surfaces of journal and the bearing are completely separated by a film of lubricant (B) Where the surfaces of journal and the bearing are partially ... are separated by a film created by elastic deflection of parts (D) Where there is no lubricant

Last Answer : (A) Where the surfaces of journal and the bearing are completely separated by a film of lubricant

For elasto-hydrodynamic lubrication (A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance space (B) There should be external source like pump to supply lubricant under pressure (C) There should be elastic deformation of the parts in contact (D) There should be metal to metal contact

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For hydrostatic lubrication (A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance space (B) There should be external source like pump to supply lubricant under pressure (C) There should be elastic deformation of the parts in contact (D) There should be metal to metal contact

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Last Answer : (B) There should be external source like pump to supply lubricant under pressure

For hydrodynamic lubrication (A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance space (B) There should be external source like pump to supply lubricant under pressure (C) There should be elastic deformation of the parts in contact (D) There should be metal to metal contact

Description : For hydrodynamic lubrication (A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance space (B) There should be external source like pump to ... be elastic deformation of the parts in contact (D) There should be metal to metal contact

Last Answer : (A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance space

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Last Answer : (B) Where the surfaces of journal and the bearing are partially separated by a film of lubricant and there is partial metal to metal contact

A zero film bearing is a bearing (A) Where the surfaces of journal and the bearing are separated by a thick film of lubricant (B) Where the surfaces of journal and the bearing are partially separated by a film of lubricant and there is partial metal to metal contact (C) Where the surfaces of journal and the bearing are separated by a film created by elastic deflection of parts (D) Where there is no lubricant

Description : A zero film bearing is a bearing (A) Where the surfaces of journal and the bearing are separated by a thick film of lubricant (B) Where the surfaces of journal and the bearing are partially ... bearing are separated by a film created by elastic deflection of parts (D) Where there is no lubricant

Last Answer : (D) Where there is no lubricant

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The shear resistance of a soil is constituted basically of the following component. (A) The frictional resistance to translocation between the individual soil particles at their contact point (B) To the structural relation to displacement of the soil because of the interlocking of the particles (C) Cohesion and adhesion between the surfaces of the soil particles (D) All the above

Description : The shear resistance of a soil is constituted basically of the following component. (A) The frictional resistance to translocation between the individual soil particles at their contact point (B) To the ... (C) Cohesion and adhesion between the surfaces of the soil particles (D) All the above

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Newton’s rings are formed because of interference between the light Reflected from (a) Upper surface of Plano-convex lens and lower surface of plane glass plate (b) Lower surface of Plano-convex lens and upper surface of plane glass plate (c) Lower and upper surface of Plano-convex (d) Lower and upper surfaces of plane glass plate

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Last Answer : there is a word for it, and I am not sure how you spell it, but is sounds very simiar to dybbuk or dibic...

A 1250 kg car is moving down the street with a velocity of 32.0 m/s bumps into a parked car ahead of it which has a mass of 875 kg. the parked car moves away with velocity of 6 m/s?

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what are the two bumps that appear were the leaf starts on the stem

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Why do the little head bumps hurt more than the big ones?

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Last Answer : I think it is just your perception. When you hit your head with the axe, it hurt so much you passed out!

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Can someone explain to me why so many flip-flops are being made with ridges and bumps?

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What are these small bumps on my arm?

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Last Answer : It could be yeast.

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Does anyone know why your feet would develop bumps in the night?

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Multiple painless bumps in mouth?

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What causes these small red bumps (sometime itchy) after running in very cold weather?

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What are these bumps on my dog's back?

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I have 4 little bumps on my top lip and they have been there for a while?

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Does using an electric shaver drastically reduce the chance of having razor bumps on one's face?

Description : Does using an electric shaver drastically reduce the chance of having razor bumps on one's face?

Last Answer : answer:Yes, this is why I use one now. I tried a regular razor, a razor with the sensitive skin shaving cream, the special bump preventer razors, and that cream you put on and wipe off like nair. ... is because our skin needs to be cleaner and clear of the dead skin, so exfoliating helps with that.

What disease can cause a random bald spot, sharp pain in the side of the throat and random bumps on his chest?

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Last Answer : The only thing that I can think of, is perhaps a thyroid condition. But, his best bed is to seek a professional. His symptoms seem extreme.

How do you get rid of razor bumps?

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Last Answer : Pardon my ignorance but what exactly are razor bumps?

Is this a valid way to deal with bumps on the hand?

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Last Answer : sounds completely implausible to me…but then i’m not a doctor… but sounds rather clever too!!

I have huge bumps on my body when im stressed HELP!

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What usually bumps up your road rage?

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how to get rid of red bumps caused by waxing?

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Last Answer : Tendskin. It will burn, but it'll reduce the redness. Also great for razor burn.

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What's the best solution for treating bumps and ingrown hair?

Description : What's the best solution for treating bumps and ingrown hair?

Last Answer : Here are some legitimate suggestions.

Ponytail without the "lumps" or "bumps"?

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Is something wrong with my artichoke if the inside of the leaves have brown dots/bumps on them?

Description : Is something wrong with my artichoke if the inside of the leaves have brown dots/bumps on them?

Last Answer : answer:It's normal for it to have some spots. They could be bruised or just a little bit of natural discoloration. I've eaten artichokes which have had the little brown specks on them and I was fine ... worry too much about it, as long as the rest of the leaf has a pretty nice green color.

Do you think the USA will ever put Braille "bumps" on currency, so blind people can differentiate the various denominations?

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Last Answer : I think that instead of having a paper bill and the Braille bumps wearing out, they can apply plastic bumps on the bills, or just remake the bill into a plastic one, like many other countries. Plastic bills are much cleaner and are easier to maintain their shape (won’t tear, get wet.. etc)

Why is there big bumps under my budgies feet?

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Last Answer : If the bump looks so abnormal to you, then please take your budgie to an avian vet to determine what it is. If it has grown, it might be a tumor.

small pickling cucumbers have dark spot where the bumps are

Description : small pickling cucumbers have dark spot where the bumps are

Last Answer : Will it wash off................if not trim it off and cut it in slices and see if it is inside............