A. in which parts are not loaded
B. in which stress remains constant on in-creasing load
C. in which deformation tends to loosen the joint and produces a stress reduced
D. stress reduces on increasing load
E. none of the above
Related Mcqs:
- Weld decay is the phenomenon found with _________________?
A. cast iron
B. mild steel
C. non-ferrous materials
D. wrought iron
E. stainless steel - Overfire burning is the phenomenon of _____________________?
A. supply of excess, air
B. supply of excess coal
C. burning CO and unburnts in upper zone of furnace by supplying more air
D. fuel bed firing
E. none of the above - Spontaneous combustion is a phenomenon in which____________________?
A. all the fuel burns instantaneously producing high energy release
B. fuel burns with less air
C. coal bursts into flame without any external ignition source but by itself due to gradual increase in temperature as a result of heat released by combination of oxygen with coal
D. explosion in furnace
E. none of the above - The elastic stress strain behaviour of rubber is_____________________?
A. linear
B. non-linear
C. plastic
D. no fixed relationship
E. unpredictable behaviour - Slow plastic defomiation of metals under a constant stress is known as________________?
A. creep
B. fatigue
C. endurance
D. plastic deformation
E. non-plastic deformation - The normal stress is same in all directions at a point in a fluid_______________?
A. only when the fluid is frictionless
B. only when the fluid is incompressible and has zero viscosity
C. when there is no motion of one fluid layer relative to an adjacent layer
D. irrespective of the motion of one fluid layer relative to an adjacent layer
E. in case of an ideal fluid - At the center line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be_________________?
A. minimum
B. maximum
C. zero
D. negative value
E. could be any value - The normal stress in a fluid will be constant in all directions at a point only if__________________________?
A. it is incompressible
B. it has uniform viscosity
C. it has zero viscosity
D. it is frictionless
E. it is at rest - The property of a fluid which enables it to resist tensile stress is known as___________________?
A. compressibility
B. surface tension
C. cohesion
D. adhesion
E. viscosity - 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
