Q. Euler's formula for a mild steel column is not valid if the slenderness ratio is

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Q. The standard length of the shaft is

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Q. According to I.B.R., when the thickness of boiler shell (t) is greater than 8 mm, then the diameter of rivet hole (d) is obtained by

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Q. When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will

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Q. A taper key which fits half in the key way of the hub and half in the key way of shaft, is known as

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Q. A metal pipe of 1 m diameter contains a fluid having a pressure of 1 N/mm². If the permissible tensile stress in the metal is 20 N/mm², then the thickness of the metal required for making the pipe will be

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Q. A tangent key is provided in pairs at right angles and each key is to withstand torsion in one direction only.

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Q. When the speed of belt increases,

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Q. According to law of gearing, the common normal at the point of contact between a pair of teeth must always pass through the pitch point.

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Q. An involute pinion and gear are in mesh. If both have the same size of addendum, then there will be interference between the

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Q. When bevel gears having equal teeth and equal pitch angles connect two shafts whose axes intersect at right angle, then they are known as

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Q. A sliding bearing which can support steady loads without any relative motion between the journal and the bearing, is called

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Q. In case of pressure vessels having closed ends, the fluid pressure induces

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Q. A machine part subjected to __________ is called a strut.

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Q. The yield point in static loading is __________ as compared to fatigue loading.

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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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