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In slip, the orientation of the crystal above and below the slip plane is _________ after deformation as before. While twinning results in ___________ orientation across the twin plane.
Twinning is not associated with specific crystallographic direction; it only depends on the direction of mechanical force. There is no preferred orientation of twinning in crystal.
The plane passing through the twinning axis and separating the region of twinning from undeformed part is called ___ planes.
Which of the following is true?
1. A class can extend more than one class.
2. A class can extend only one class but many interfaces.
3. An interface can extend many interfaces.
4. An interface can implement many interfaces.
5. A class can extend one class and implement many interfaces.
Deformation by twinning is not a dominant mode of deformation in FCC metals.
Whenever some external system of forces acts on a body, it undergoes some deformation. As the body undergoes some deformation, it sets up some resistance to the deformation. This resistance per unit area to deformation, is called
Statement (I): Pursuant to plastic deformation of metals, the mechanical properties of the metals get changed. Statement (II): Mechanical properties of metals depend on grain size also which gets changed by plastic deformation.
There are blank spaces in the following passage which have been numbered . These numbers are printed below the passage and against each some words are suggested . Find out the word that best fit the blank spaces. Global Strategies to control infective disease have historically included the erection of barriers to international travel and ___ (24) _______. Keeping people with such deadly disease outside national borders has ___ (25) _______ as an important public health policy in the human immunodeficiency virus (HIV) epidemic . Betwwn 29 and 50 countries ___ (26) _____ to have introduced border restrictions on HIV _ positive foreigners ,usually those planning an ___ (27) ___ stay in the country , such as students , workers or seamen.
Inhomogeneous deformation of crystal results in regions of different orientation called deformation bands. Deformation bands have been observed in both fcc and bcc metals, but not in hcp metals.
Consider the following statements regarding pavements: 1. Rigid pavements are more suitable than flexible pavements for stage construction. 2. Rigid pavements are more affected by temperature variations than flexible pavements. 3. In a flexible pavement, any deformation in the top layers is transferred to under- laid layers; but, in rigid pavements, there is slab or beam action due to which any deformation is only in the top layer of the concrete slab. Which of the above statements are correct?