The extension of a circular bar tapering uniformly from diameter d1 at one end t

CuriousTab

CuriousTab

Home Aptitude

Discussion

Home ‣ Mechanical Engineering ‣ Strength of Materials Comments

Question
The extension of a circular bar tapering uniformly from diameter d₁ at one end to diameter d₂ at the other end, and subjected to an axial pull of P is given by
Options
A.
B.
C.
D.

Correct Answer

Strength of Materials problems

Search Results

1. The horizontal thrust offered by the retaining wall on the retained material is (where w = Specific weight of the retained material, h = height of retaining wall, and (?) = Angle of repose of the retained earth)
Options
A.
B.
C.
D.

2. When a body is subjected to bi-axial stress i.e. direct stresses (?_x) and (?_y) in two mutually perpendicular planes accompanied by a simple shear stress (?_xy), then maximum normal stress is
Options
A.
B.
C.
D.

4. The tensile strength of the welded joint for double fillet is (where s = Leg or size of the weld, l = Length of weld, and ?_t = Allowable tensile stress for weld metal)
Options
A. 0.5 s.l.?_t
B. s.l.?_t
C. 2 s.l.?_t
D. 2.s.l.?_t

5. In a thick cylindrical shell subjected to an internal pressure (p), the maximum radial stress at the inner surface of the shell is
Options
A. zero
B. p (tensile)
C. -p (compressive)
D. 2p (tensile)

9. In a thick cylindrical shell subjected to an internal pressure (p), the tangential stress across the thickness of a cylinder is
Options
A. maximum at the outer surface and minimum at the inner surface
B. maximum at the inner surface and minimum at the outer surface
C. maximum at the outer surface and zero at the inner surface
D. maximum at the inner surface and zero at the outer surface

10. In order to avoid tearing off the plate at an edge, the distance from the centre of the rivet hole to the nearest edge of the plate (i.e. margin) should be (where d = Diameter of rivet hole in mm)
Options
A. d
B. 1.5 d
C. 2 d
D. 2.5 d

Comments

More in Mechanical Engineering: