Percentage of carbon content in mild steel is_______________?
A. Less than 0.25
B. Between 0.25 and 0.7
C. Between 0.7 and 1.5
D. Greater than 1.5
The ratio of the thickness of web to that of flange of steel rolled structural beams and channels is______________?
A. Less than 1
B. Equal to 1
C. Greater than 1
D. Less than 1 in beams but greater than 1 in channels
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 ?
A. Both a and r are true and, r is the correct explanation of a
B. Both a and r are true but r is not the correct explanation of a
C. A is true but r is false
D. A is false but r is true