A. Work hardening
B. Bauschinger effect
C. Creeping effect
D. Stress recovery effect
Related Mcqs:
- According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to _______________ times the yield stress ?
A. 0.5
B. 2
C. √2
D. √3/2 - Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________________ kJ ?
A. +4000
B. -4000
C. 10000
D. -10000 - Wohler test is a destructive test to find out the ___________________ strength of a prepared metal specimen ?
A. Creep
B. Fatigue
C. Endurance
D. Tensile - The maximum stress below which a material can withstand an infinite number of cycle of stress, is termed as the________________?
A. Fatigue strength
B. Creep strength
C. Resilience
D. Endurance limit - In practice, the compression ratio of compression-ignition (CI) engine ranges from ______________________?
A. 15 to 25
B. 5 to 10
C. 40 to 55
D. 60 to 70 - Multistage compression of air as compared to single stage compression offers the advantage of______________?
A. Power saving per unit weight of air delivered
B. Moisture elimination in the inter-stage cooler
C. Increased volumetric efficiency
D. All A , B. & C. - Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting) ?
A. V/A
B. V/A2
C. V2/A
D. V2/A2 - A metal having a Poisson’s ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is________________?
A. -0.8
B. 0.8
C. +0.08
D. -0.24 - Yield strength of a polycrystalline metal with an average grain size „d’, is proportional to ____________________?
A. d1/2
B. d-1/2
C. d
D. d-1 - Factor of safety in machine design is defined as the ratio of ultimate stress to _____________ stress ?
A. Working
B. Bearing
C. Yield
D. None of these
