The greatest load which a spring can carry without getting permanently distorted, is called_________________?
B. Proof resilience
C. Proof stress
D. Proof load(Correct)
		A. Straight line formula
B. Parabolic formula
C. Perry’s formula
D. Rankine’s formula
		A. (1/3) A
B. (1/6) A
C. (1/12) A
D. (1/18) A
		A. At one quarter span
B. At the crown
C. Anywhere in the rib
D. None of these
		A. d4N/8D3n
B. d4N/4D3n
C. 4D3N/d4n
D. 8D3N/d4n