Machine Design

Eye bolts are used for_________________? A. foundation purposes B. locking devices * C. absorbing shock and vibrations D. transmission of powerE. lifting and transportation of machines and cubicles

Fibrous fracture occurs in_____________? A. ductile material B. brittle material C. elastic material D. hard material E. all of the above

A key made from a cylindrical disc having segmental cross-section, is known as______________? A. wood-ruff key B. feather key C. flat saddle key D. gib head key E. hollow saddle key

In order to obtain bolt of uniform strength____________________? A. increase shank diameter B. increase its lengthC. drill an axial hole through head up to threaded portion so that shank area is equal to root area of thread D. tighten die bolt properly E. all of the above

The pitch of threads on a Jock nut in comparison to pitch of nut is_________________? A. same B. coarser C. finer D. very coarse E. very fine

Transverse fillet welded joints are designed for________________? A. tensile strength B. compressive strength C. shear strength D. bending strength E. torsional strength

In order to avoid tearing of the plate at edge, the distance from the center line of the rivet hole to the nearest edge of the plate in terms of dia of rivet d should be equal to__________________? A. d B. 1.25 dC. 1.5 d D. 1.75 d E. 2 d.

The edges of a boiler plate are bevelled to an angle of______________? A. 30° B. 45° C. 60°D. 80° E. 85°.

Machine screws are________________? A. similar to small size tap bolts except that a greater variety of shapes of heads are availableB. slotted for a screw driver and generally used with a nut C. used to prevent relative motion be-tween two parts D. similar to stud E. none of the above

A self locking screw has________________> A. fine threads B. coarse threadsC. coefficient of friction > tangent of load angle D. hole for inserting split E. two nuts for locking