Q. The contact ratio is the ratio of

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Q. The bearing characteristic number is given by (where p = Bearing pressure on the projected bearing area, Z = Absolute viscosity of the lubricant, and N = Speed of the journal)

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Q. The cracks in helical springs used in railway carriages usually start on the inner side of the coil because of the fact that

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Q. In a marine flange coupling, the thickness of flange is taken as

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Q. The wire ropes make contact at

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Q. The metal suitable for bearings subjected to heavy loads is

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Q. The V-belts are particularly suitable for __________ drives.

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Q. For hardening alloy steels and high speed steels, they are heated to

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Q. An universal coupling is used to connect two shafts

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Q. Which one of the following is a positive drive?

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Q. Two closely coiled helical springs with stiffnesses k1 and k2 respectively are connected in series. The stiffness of an equivalent spring is given by

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Q. The period during which the cam follower remains at rest, when cam moves, is known as

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Q. The flank of the tooth is the

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Q. The included angle for the British Association thread is

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Q. If a bearing is designated by the number 305, it means that the bearing is of

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Q. Tapered roller bearings can take

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Q. In order to remove internal stresses produced by hardening the steel, the process usually adopted is

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Q. A pressure vessel is said to be a thin shell, if the ratio of wall thickness to its diameter is equal to 1/10.

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Q. A bolt of uniform strength can be developed by

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Q. The ratio of endurance limit in shear to the endurance limit in flexure is

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