Q. Which of the following statement is correct ?

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Q. When a shaft is subjected to combined twisting moment (T) and bending moment (M), then the equivalent twisting moment is equal to

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Q. In helical gears, the right hand helixes on one gear will mesh __________ helixes on the other gear.

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Q. A connecting rod is designed as a

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Q. The cross-section of the arm of a bell crank lever is

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Q. The rocker arms in internal combustion engines are of first type levers.

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Q. A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be

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Q. The longitudinal stress is __________ of the circumferential stress.

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Q. The expression 0.175 - 0.841/T is the Lewis form factor for

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Q. A screw will be self locking, if

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Q. The maximum shear stress theory is used for

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Q. In a crossed belt drive, the shafts are arranged parallel and rotate in the same directions.

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Q. In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as

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Q. Idler pulley is used for

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Q. The bell crank levers used in railway signalling arrangement are of third type levers.

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Q. When spring index increases, the value of Wahl's stress factor

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Q. The rolling contact bearings are known as

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Q. The backlash for spur gears depends upon

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Q. The size of a gear is usually specified by

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Q. The circumferential and longitudinal strains in a cylindrical boiler under internal steam pressure are εc and εl respectively. The change in volume of the boiler cylinder per unit volume will be

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