A. frequent heat treatment
B. fatigue
C. creep
D. shock loading
E. resonant condition
Related Mcqs:
- Proof resilience per material is known as________________?
A. resilience
B. proof resilience
C. modulus of resilience
D. toughness
E. impact energy - Shear stress induced in a shaft subjected to tension will be__________________?
A. maximum at periphery and zero at center
B. maximum at center
C. uniform throughout
D. average value in center
E. none of the above - A key is subjected to side pressure as well at shearing forces. These pressures are called_________________?
A. bearing stresses
B. fatigue stresses
C. crushing stresses
D. resultant stresses
E. none of the above - A boiler shell 200 cm diameter and plate thickness 1.5 cm is subjected to internal pressure of 1.5 MN/m , then the hoop stress will be_________________?
A. 30 MN/m2
B. 50 MN/m2
C. 100 MN/m2
D. 200 MN/m2
E. 300 MN/m2 - The deformation of a bar under its own weight compared to the deformation of same body subjected to a direct load equal to weight of the body is_______________?
A. same
B. double
C. half
D. four times
E. one-fourth - The ratio of direct stress to volumetric strain in case of a body subjected to three mutually perpendicular stresses of equal intensity, is equal to___________________?
A. Young’s modulus
B. bulk modulus
C. modulus of rigidity
D. modulus of elasticity
E. Poisson’s ratio - A flywheel on a motor goes from rest to 1000 rpm in 6 sec. The number of revolutions made is nearly equal to_________________?
A. 25
B. 50
C. 100
D. 250
E. 500 - The change in the unit volume of a material under tension with increase in its Poisson’s ratio will ________________?
A. increase
B. decrease
C. remain same
D. increase initially and then decrease
E. unpredictable - Tensile strength of a material is obtained by dividing the maximum load during the test by the_________________?
A. area at the time of fracture
B. original cross-sectional area
C. average of A. and B.
D. minimum area after fracture
E. none of the above. - The stress developed in a material at breaking point in extension is called__________?
A. Breaking stress
B. Fracture stress
C. Yield point stress
D. Proof stressSubmitted by: Faheem Zaman Dhaunroo