Q. When the frictional force helps to apply the brake, then the brake is said to be self-energizing brake.

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Q. If T is the actual number of teeth on a helical gear and φ is the helix angle for the teeth, then formative number of teeth is written as

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Q. The material generally used for air-craft components is

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Q. The speed of the sprocket reduces as the chain pitch __________ for a given number of teeth.

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Q. In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing

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Q. The working of metals above the recrystallisation temperature is known as hot working.

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Q. In a band and block brake, the ratio of tensions on the tight and slack sides of band is given by (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the centre of drum, and n = Number of blocks)

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Q. The ratio of number of teeth to the pitch circle diameter in millimetres is called circular pitch.

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Q. The washer is generally specified by its

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Q. The taper on key is given on

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Q. The fatigue stress concentration factor is defined as

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Q. A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder on to the other cylinder, The junction radius is 60 mm and the junction pressure is 1.1 N/mm². The maximum hoop stress developed in the inner cylinder is

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Q. A connecting rod subjected to an axial load may buckle in the plane of motion of the connecting rod.

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Q. In a turnbuckle, if one of the rods has left hand threads, then the other rod will have

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

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Q. Which of the following statement is wrong for a connecting rod ?

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Q. Which of the following statement is correct ?

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Q. The most important dimension in the design of a nut is

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Q. Factor of safety for fatigue loading is the ratio of

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Q. The shafts of larger diameter are usually forged and turned to size in a lathe.

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