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

Q. Antifriction bearings are

View solution

Q. Stress concentration factor is defined as the ratio of

View solution

Q. The property of a bearing material which has the ability to accomodate shaft deflections and bearing inaccuracies by plastic deformation without excessive wear and heating, is known as

View solution

Q. In the levers of __________ type, the mechanical advantage is less than one.

View solution

Q. A hollow saddle key is

View solution

Q. Pitch point of a cam is

View solution

Q. When two parallel and coplaner shafts are connected by gears having teeth parallel to the axis of the shaft, the arrangement is known as spiral gearing.

View solution

Q. A screw is specified by its

View solution

Q. The wear load should be __________ the dynamic load.

View solution

Q. The velocity factor for ordinary cut gears operating at velocities upto 12.5 m/s is equal to

View solution

Q. The property of a bearing material which has the ability to accomodate small particles of dust, grit etc. without scoring the material of the journal, is called

View solution

Q. The shock resistance of steel is increased by adding

View solution

Q. The ratio of driving tensions for flat belts, neglecting centrifugal tension, is (where T1, and T2 = Tensions on the tight and slack sides of belt respectively, μ = Coefficient of friction, between the belt and pulley, and θ = Angle of contact)

View solution

Q. A flange coupling is a type of rigid coupling.

View solution