| Which of the following theories is majorly used for analysis of thick cylinders? |
A) Courbon’s theory
B) Poisson’s theory
C) Lame’s theory
D) Perry’s theory
| The design of thin cylindrical shell is based on |
A) Hoop stress
B) Longitudinal stress
C) Arithmetic mean of hoop and longitudinal stress
D) None of the above
| For a Poisson’s ratio of 0.3, the ratio of volumetric strain to hoop strain in thin spherical cell is |
A) 3
B) 0.33
C) 9.5
D) None of the above
| The hoop stress in a thin cylinder shell is |
A) longitudinal stress
B) compressive stress
C) radial stress
D) circumferential tensile stress
| A thin walled cylinderical pressure vessel having radius of 0.5 m and wall thickness of 25 mm is subjected to an internal pressure of 700 kPa. The hoop stress is |
A) 14 MPa
B) 1.4 MPa
C) 0.14 MPa
D) 0.014 MPa
| If ‘p’ is the pressure on the cylinder, ‘d’ and ‘t’ are the diameter and wall thickness respectively, the maximum in-plane shear stress in thin wall of cylinder can be given by |
A) pd/2t
B) pd/4t
C) pd/6t
D) pd/8t
| A long thin cylindrical shell is subjected to internal pressure. The ratio of circumferential stress to longitudinal stress is |
A) 0.5
B) 0.75
C) 1.0
D) 2.0
| Which one of the following is not properly matched ? |
A) Lane’s method : Thick cylinder
B) Euler’s method : Theory of column
C) Eddy’s theorem : Torsion of shafts
D) Macaulay’s method : Deflection of beam
| What will be the circumferential stress developed in case of thin cylindrical pipe with diameter ‘d’ and thickness ‘t’ subjected to internal pressure ‘p’. |
A) pd/4t
B) p/t
C) pd/2t
D) p/2t
| The material of a rubber balloon has Poisson’s ratio of 0.5. If uniform pressure is applied to blow the balloon, the volumetric strain of the material will be |
A) 0.25
B) 0.50
C) 0.20
D) 0.00
