Name five important performance properties of floor coverings.
What will be an ideal response?
(i) Slip resistance, (ii) durability, (iii) hygienic property, (iv) flammability, and (v) walking comfort.
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_________________________ are a helix or conical spiral formed on the external surface of a shaft or on the internal surface of a cylindrical hole.
Fill in the blank(s) with the appropriate word(s).
Name five uses for wood
What will be an ideal response?
(a) If a vacancy disc forms on a basal plane of a hexagonal metal close?packed metal, what stacking sequence of basal planes would result across the disc?
(b) Why would the strain energy of the resulting stacking fault be very high? (c) Explain how a simple shear along the basal plane, equal to a Cheekily partial, could eliminatethe high energy stacking fault and replace it with one of lower energy. (d) What then would be the stacking arrangement of the basal planes at the fault? (e) Is the result in (d) unique or are there several basic probabilites? Explain.
Who among the following were strong critics of Napoleon III’s regime?
a. the French nobility b. the French liberals c. the French clergy d. the French press