24. Assertion A : Shishum is used for decorative woodwork. Reason R : Shishum can be polished to an excellent finish. 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
✅ The correct answer is option A.

29. Depth or height of the arch is the________________?

A. perpendicular distance between intra-dos and extrados
B. vertical distance between springing line and intrados
C. perpendicular distance between springing line and extrados
D. none of the above
✅ The correct answer is option A.