Q. If a shaft made from ductile material is subjected to combined bending and twisting moment, calculations based on which one of the following failure theories will give the most conservative value?

View solution

Q. The velocity factor for precision metallic gears cut with high accuracy and operating at velocities upto 20 m/s is equal to

View solution

Q. In a bolt, the plane of shear should be across the threaded portion of the shank.

View solution

Q. When a metal or alloy is cold worked,

View solution

Q. A leaf spring in automobiles is used

View solution

Q. According to I.B.R., the factor of safety of riveted joint should not be less than

View solution

Q. Which of the following welded joint is designed for shear strength ?

View solution

Q. In designing a connecting rod, it is considered like __________ for buckling about X-axis.

View solution

Q. The material commonly used for crane hooks is

View solution

Q. The eye bolts are used for

View solution

Q. The endurance or fatigue limit is defined as the maximum value of the stress which a polished standard specimen can withstand without failure, for infinite number of cycles, when subjected to

View solution

Q. A special case of ductility which permits materials to be rolled or hammered into thin sheets, is called

View solution

Q. Crowning on pulley helps

View solution

Q. The temperature required for full annealing in hyper-eutectoid steel is

View solution

Q. The effect of key ways on a shaft is to reduce its load carrying capacity and to increase its torsional rigidity.

View solution

Q. The efficiency of a riveted joint is equal to

View solution

Q. Which of the following formula is used in designing a connecting rod ?

View solution

Q. When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is

View solution

Q. The lead angle of a worm is 22.5°. Its helix angle will be

View solution

Q. The root angle of a bevel gear is equal to

View solution