Rapture stress is
(a) Breaking stress
(b) Load at the braking point/A
(c) Load at the breaking point/Neck area
(d) Maximum Stress

1 Answer

Answer :

(c) Load at the breaking point/Neck area

Related questions

Description : The stress at which extension of a material takes place more quickly as compared to increase in load, is called (a) No elastic zone (b) Plastic point (c) Yield point (d) Breaking point

Last Answer : (c) Yield point

Description : Real stress after load application is based on (a) Original area of cross section (b) Changing area of cross section (c) Final area of cross section under maximum load (d) None

Last Answer : b) Changing area of cross section

Description : Unit stress after load application is based on (a) Original area of cross section (b) Changing area of cross section (c) Final area of cross section under maximum load (d) None

Last Answer : (a) Original area of cross section

Description : When a simply supported beam is loaded with a point load at the centre, the maximum tensile stress is developed on the (a) Top fibre (b) Bottom fibre (c) Neutral axis (d) None of these

Last Answer : (b) Bottom fibre

Description : Breaking stress is (a) greater than the ultimate stress (b) Less than the ultimate stress (c) equal to the ultimate stress (d) None

Last Answer : (a) greater than the ultimate stress

Description : Determine the maximum shearing stress and elongation in a helical steel spring composed of 20 turns of 20-mm-diameter wire on a mean radius of 90 mm when the spring is supporting a load of 1.5 kN. and G = 83 GPa. a. 200 mm b. 105.4 mm c. 150 mm d. 250 mm

Last Answer : b. 105.4 mm

Description : A uniformly distributed load of 20 kN/m acts on a simply supported beam of rectangular cross section of width 20 mm and depth 60 mm. What is the maximum bending stress acting on the beam of 5m? a. 5030 Mpa b. 5208 Mpa c. 6600 Mpa d. Insufficient data

Last Answer : b. 5208 Mpa

Description : Bending stress will be least at the extreme fibres for (a) Maximum area of cross section (b) Maximum moment of inertia (c) Maximum section modulus (d) None

Last Answer : (c) Maximum section modulus

Description : For a fixed beam with midpoint load point, maximum deflection at the centre is a.PL3/ 192EI b.PL2/ 48EI c.PL4/ 192EI d.PL3/ 48EI

Last Answer : a.PL3/ 192EI

Description : In a cantilever subjected to a combination of concentrated load, uniformly distributed load and uniformly varying load, Maximum bending moment is (a) Where shear force=0 (b) At the free end (c) At the fixed end (d) At the mid-point

Last Answer : (c) At the fixed end

Description : In a simply supported beam subjected to uniformly distributed load (w) over the entire length (l), total load=W, maximum Bending moment is (a) Wl/8 or wl2/8 at the mid-point (b) Wl/8 or wl2/8 at the end (c) Wl/4 or wl2/4 (d) Wl/2

Last Answer : (a) Wl/8 or wl2/8 at the mid-point

Description : A cantilever beam of span 3m carries a point load 100 N at the free end. The maximum B.M in the beam will be (a) 100 N-m (b) 300 N-m (c) 150 N-m (d) 600 N-m

Last Answer : (b) 300 N-m

Description : For a simply supported beam of span L, with point load W at the centre, the maximum B.M. will be (a) WL (b) WL/2 (c) WL/4 (d) WL/8

Last Answer : (c) WL/4

Description : Wahl’s stress concentration factor is used in close coiled springs under axial load to account for (a) Shear effect (b) Bending effect (c) Compression effect (d) none

Last Answer : (b) Bending effect

Description : When two helical springs of equal lengths are arranged to form a cluster spring, then a. Shear stress in each spring will be equal b. Load taken by each spring will be half the total load c. Only A is correct d. Both A and B is correct

Last Answer : d. Both A and B is correct

Description : Find the shear stress in the spring wire used to design a helical compression sprig if a load of 1200N is applied on the spring. Spring index is 6, and wire diameter 7mm. a) 452.2N/mm² b) 468.6N/mm² c) 512.2N/mm² d) None of the listed

Last Answer : b) 468.6N/mm²

Description : A short, hollow cast iron cylinder with a wall thickness of 1 cm is to carry a compressive load of 10 tonnes. If the working stress in compression is 800 kg/cm2, the outside diameter of the cylinder should not be less than a) 0.5cm b) 5 cm c) 2.5cm d) 4.5 cm

Last Answer : b) 5 cm

Description : When a column is subjected to an eccentric load, the stress induced in the column will be (a) direct stress only (b) bending stress only (c) shear stress only (d) direct and bending stress both

Last Answer : (d) direct and bending stress both

Description : The range within which a load can be applied on a rectangular column, to avoid any tensile stress,is (a) One-half of the base (b) One-fifth of the base (c) One-fourth of the base (d) One-fifth of the base

Last Answer : (b) One-fifth of the base

Description : For keeping the stress wholly compressive the load may be applied on a circular column anywherewithin a concentric circle of diameter (a) d/2 (b) d/3 (c) d/4 (d) d/8

Last Answer : (c) d/4

Description : The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, ... One-third of the radius (c) One-quarter of the radius (d) One-fifth of the radius

Last Answer : (c) One-quarter of the radius

Description : The graphical representation of variation of axial load on y axis and position of cross section along x axis is called as _____ (a) Bending moment diagram (b) Shear force diagram (c) Stress-strain diagram (d) Trust diagram

Last Answer : (d) Trust diagram

Description : Stress under suddenly applied load is (a) Three times than the gradually applied load (b) equal to the that due to gradually applied load (c) Less than that due to gradually applied load (d) none

Last Answer : (d) none

Description : Linear stress strain curve is for a (a) Load ∞ displacement (b) Load ∞ ( 1/displacement) (c) Load = ( displacement)2 (d) None

Last Answer : (a) Load ∞ displacement

Description : The ability of the material to deform without breaking is called (a) Elasticity (b) Plasticity (c) Creep (d) None of these

Last Answer : (b) Plasticity

Description : Maximum bending stress in a leaf spring is (a) 3WL/4nbt2(b) 3WL/8nbt2(c) 3WL/2nbt2(d) None

Last Answer : (c) 3WL/2nbt2

Description : Compute the maximum shearing stress developed in a phosphor bronze spring having mean diameter of 200 mm and consisting of 24 turns of 20-mm diameter wire when the spring is stretched 100 mm. and G = 42 GPa. a. 51 MPa b. 31.89 MPa c. 80 MPa d. 70 MPa

Last Answer : b. 31.89 MPa

Description : In a thick cylindrical shell subjected to an internal pressure (p), the radial stress across the thickness of a cylinder is a) maximum at the outer surface and minimum at the inner surface b) maximum ... and zero at the outer surface d) maximum at the outer surface and zero at the inner surface

Last Answer : c) maximum at the inner surface and zero at the outer surface

Description : A water main 1 m in diameter contains a fluid having pressure 1 N/mm2. If the maximum permissible tensile stress in the metal is 20 N/mm2, th thickness of the metal required would be a) 2 cm b) 2.5cm c) 1 cm d) 0.5 cm

Last Answer : b) 2.5cm

Description : In a thick-cylinder pressurized from inside, the hoop stress is maximum at a) The center of the wall thickness b) the outer radius c) the inner radius d) both the inner and the outer radii

Last Answer : c) the inner radius

Description : A thick cylinder under pi and po will have maximum stress at the 1. Outer radius 2. Inner radius 3. Mean radius 4. None

Last Answer : 2. Inner radius

Description : A thick cylinder under internal fluid pressure’ pi will have maximum stress at the 1. Outer radius 2. Inner radius 3. Mean radius 4. None

Last Answer : 2. Inner radius

Description : A thick cylinder under external fluid pressure’ p0′ will have maximum stress at the 1. Outer radius 2. Inner radius 3. Mean radius 4. None

Last Answer : 2. Inner radius

Description : Maximum shear stress in a thick shell is a) (σh+ σl)/2 b) (σh+ σr)/2 c) (σh– σl)/2 d) None

Last Answer : b) (σh+ σr)/2

Description : Considering σh, σl and σr, maximum shear stress will be a) (σh—σl) /2 b) (σl— σh) /2 c) (σh + σr) /2 d) None

Last Answer : c) (σh + σr) /2

Description : A thin spherical shell under internal pressure will fail under a. Maximum shear stress b. Principal compressive stress c. Principal tensile stress d. None

Last Answer : c. Principal tensile stress

Description : According to ASME code, maximum allowable shear stress is taken as X% of yield strength or Y% of ultimate strength. a) X=30 Y=18 b) X=30 Y=30 c) X=18 Y=18 d) X=18 Y=30

Last Answer : a) X=30 Y=18

Description : A transmission shaft subjected to bending loads must be designed on the basis of (a) maximum normal stress theory (b) maximum shear stress theory (c) maximum normal stress and maximum shear stress theories (d) fatigue strength

Last Answer : (a) maximum normal stress theory

Description : A hollow circular tube with a 2.3-cm I.D. and 2.5-cm O.D. is rigidly supported at its ends. A 2.5 kN-m torque is applied at the center of this tube. What is the maximum shear stress acting on this tube? (a) 2.87Mpa (b) 4.27 Mpa (c) 6.92 Mpa (d) 10.2 Mpa

Last Answer : (a) 2.87Mpa

Description : A solid circular shaft of diameter 100 mm is subjected to an axial stress of 50 Mpa. It is further subjected to a torque of 10 kNm. The maximum principal stress experienced on the shaft is closest to (a) 41Mpa (b) 82 Mpa (c) 164 Mpa (d) 204 Mpa

Last Answer : (b) 82 Mpa

Description : A circular shaft subjected to torsion undergoes a twist of 10in a length of 120 cm. If the maximum shear stress induced is limited to 1000 kg/cm2and if modulus of rigidity G = 0.8 x 106then the radius of the shaft should be (a) p/8 (b) p/27 (c) 18/p (d) 27/p

Last Answer : (d) 27/p

Description : A solid shaft has diameter 80 mm. It is subjected to a torque of 4 KNm. The maximum shear stress induced in the shaft would be (a) 75/p N/mm2 (b) 250/p N/mm2 (c) 125/p N/mm2 (d) 150/p N/mm2

Last Answer : (c) 125/p N/mm2

Description : A hollow prismatic beam of circular section is subjected to a torsional moment. The maximum shear stress occurs at (a) inner wall of cross section (b) middle of thickness (c) outer surface of shaft (d) none of these

Last Answer : (c) outer surface of shaft

Description : Torque and bending moment of 100 kN.m and 200 kN.m acts on a shaft which has external diameter twice of internal diameter. What is the external diameter of the shaft which is subjected to a maximum shear stress of 90 N/mm2? a. 116.5 mm b. 233.025 mm c. 587.1 mm d. 900 mm

Last Answer : c. 587.1 mm

Description : What is the maximum shear stress induced in a solid shaft of 50 mm diameter which is subjected to both bending moment and torque of 300 kN.mm and 200 kN.mm respectively? a. 9.11 N/mm2 b. 14.69 N/mm2 c. 16.22 N/mm2 d. 20.98 N/mm2

Last Answer : b. 14.69 N/mm2

Description : What is the maximum principle stress induced in a solid shaft of 40 mm diameter which is subjected to both bending moment and torque of 300 kN.mm and 150 kN.mm respectively? a. 21.69 N/mm2 b. 28.1 N/mm2 c. 50.57 N/mm2 d. 52.32 N/mm2

Last Answer : c. 50.57 N/mm2

Description : Stress in the cross section of a shaft at the centre ________ a. is zero b. decreases linearly to the maximum value of at outer surface c. both a. and b. d. none of the above

Last Answer : a. is zero

Description : Strength of a shaft a. Is equal to maximum shear stress in the shaft at the time of elastic failure b. Is equal to maximum shear stress in the shaft at the time of rupture c. Is equal to torsional rigidity d. Is ability to resist maximum twisting moment

Last Answer : d. Is ability to resist maximum twisting moment

Description : Which of the following is incorrect? a. In a solid shaft maximum shear stress occurs at radius = radius of shaft b. In a solid shaft maximum shear stress occurs at center c. In a hollow ... maximum shear stress occurs at outer radius d. In a hollow shaft minimum shear stress occurs at inner radius

Last Answer : b. In a solid shaft maximum shear stress occurs at center

Description : Maximum shear stress in a hollow shaft subjected to a torsional moment is at the a. Middle of thickness. b. At the inner surface of the shaft. c. At the outer surface of the shaft. d. At the middle surface of the shaft.

Last Answer : c. At the outer surface of the shaft.