parabolic arch of span and rise , is given by The equation of a________________?
B. y = 2h/l² × (1 – x)
C. y = 3h/l² × (1 – x)
D. y = 4h/l² × (1 – x)(Correct)
		A. D/2
B. D
C. D
D. D
		A. M/T
B. T/M
C. 2M/ T
D. 2T/M
		A. Width b M
B. Width b M
C. Width b 3 M
D. Width b 1/M
		A. H = 0
B. V = 0
C. M = 0
D. All the above