A. 28
B. 8/2
C. 48
D. 8/4
E. none of the above
A. similar to’small size tap bolts except that a greater variety of shapes of heads are available
B. slotted for a screw driver and generally used with a nut
C. used to prevent relative motion be-tween parts
D. provided with detachable caps
E. similar to stud
Cap screws are___________________? Read More »
Machine Design A. 60°
B. 55°
C. 47°
D. 29°
E. none of the above
The included angle in unified of American National threads is___________________? Read More »
Machine Design A. has a head on one end and a nut fitted to the other
B. has head at one end and other end fits into a tapped hole in the other part o be joined
C. has both the ends threaded
D. has pointed threads
E. requires locking devices
A tap bolt_____________________? Read More »
Machine Design A. has a head on one end and a nut fitted to the other
B. has head at one end and other end fits into a tapped hole in the other part to be joined
C. has both the ends threaded
D. has pointed threads
E. requires locking nuts
A stud________________________? Read More »
Machine Design A. ductile materials
B. brittle materials
C. elastic materials
D. all of the above
E. none of the above
Maximum principal stress theory is applicable for_____________________? Read More »
Machine Design A. major diameter
B. minor diameter
C. pitch diameter
D. core diameter
E. none of the above
The crest diameter of a screw thread is same as _____________________? Read More »
Machine Design A. increases markedly
B. decreases markedly
C. remains same
D. depends on heat treatment carried out
E. none of the above
A. same
B. 1/2
C. 1/3
D. 1/4
E. 2/3
A. Young’s modulus
B. coefficient of elasticity
C. elastic limit
D. ultimate tensile strength
E. endurance limit
Resistance to fatigue of a material is measured by________________? Read More »
Machine Design