As noted in Fig. 7.16, the state of stress shifts from plane stress to plane strain as the ratio of length-of-bend to sheet thickness increases. Explain why. This situation….
A curve tangential to four sight lines and consisting of arcs of different radii is known as?
A.The three transition curves deviate after an angle of
(a) 4° (b) 12° (c) 8° (d) 20°
B. In setting out a vertical curve by chord gradient method if the first chord gradient
is 0.16, the fourth chord gradient will be (take c = 0.01)
(a) 0.12 (b) 0.10 (c) 0.09 (d) 0.08.
C. A curve tangential to four sight lines and consisting of arcs of different radii is
(a) one-centred compound curve (b) two-centred compound curve
(c) three-centred compound curve (d) four-centred compound curve
D. Overturning of vehicles on a curve can be avoided by using a
(a) compound curve (b) vertical curve
(c) reverse curve (d) transition curve