29. The main type of butt joints, is a double cover

A. shear riveted joint

B. chain riveted joint

C. zig-zag riveted joint

D. all the above.

30. A riveted joint may experience

A. shear failure

B. shear failure of plates

C. bearing failure

D. all the above.

31. A riveted joint many experience

A. tearing failure of plates

B. bearing failure of plates

C. splitting failure of plates at the edges

D. all the above.

32. If N is the number of rivets in the joint, the strength of a riveted joint against shearing of rivets, is given by

A. / = N x d2 x P

B. Ps =Nx (d x t x

C. Ps = N x (p ? d)xt x Ps

D. Ps = N x (P d) xt x p,.

33. The strength of a riveted lap joint is equal to its

A. shearing strength

B. bearing strength

C. tearing strength

D. least of (a), (b) and (c)

34. Efficiency of a riveted joint is defined as the ratio of

A. least strength of a riveted joint to the strength of solid plate

B. greatest strength of a riveted joint to the strength of solid plate

C. least strength of a riveted plate to the greatest strength of the riveted joint

D. all the above.

35. Design of a riveted joint, is based on the assumption :

A. Load is uniformly distributed among all the rivets

B. Shear stress on a rivet is uniformly distributed over its gross area

C. Bearing stress is uniform between the contact surfaces of the plate and the rivet

D. All the above.

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