The maximum stress of metals can withstand without breaking or without failure for specific number of stress reveals.
A. Ductility
B. Tensile strength
C. Fatigue strength
D. Shear strength
Answer: Option B
A. Ductility
B. Tensile strength
C. Fatigue strength
D. Shear strength
Answer: Option B
The minimum length of sleeper used as chock support of the roof height to be supported excess of 3m.
A. 1.2 m
B. 1.5 m
C. 1.6 m
D. 1 m
The preferred shape of an opening in uniaxial stress field as
A. Circle
B. Ellipse
C. Ellipse with proper axis ratio
D. Ovaloid
Most of the Gondwana coals from any field are rich in . . . . . . . .
A. Durain
B. Fusain
C. Vitrain
D. Clairain
Join The Discussion