31. Seasoning is
32. The variety of pig iron used for the manufacture of steel by Bessemer process, is
33. Seasoning of timber is essential to remove
34. The preparation of surface of stone to obtain plain edges or to obtain stones of required size and shape is known as
35. Shingle is
36. Brass is an alloy of
37. The most fire resistant paints are:
38. Assertion A : Pure lime takes a long time to develop adequate strength.
Reason R : Pure lime has slow hardening characteristics.
Select your answer according to the coding system given below:
Reason R : Pure lime has slow hardening characteristics.
Select your answer according to the coding system given below:
39. Assertion A : Normally turpentine oil is recommended as thinner for indoor painting.
Reason R : Turpentine oil is costlier than other thinners.
Select your answer according to the coding system given below:
Reason R : Turpentine oil is costlier than other thinners.
Select your answer according to the coding system given below:
40. Assertion A : Paints with white lead base are not recommended for painting of iron works.
Reason R : Paints with white lead base do not check rusting of iron.
Select your answer according to the coding system given below:
Reason R : Paints with white lead base do not check rusting of iron.
Select your answer according to the coding system given below:
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