Related Questions

The safe speed for a train rounding a corner is proportional to the square root of the radius . If the safe speed for a curve of radius 49 meters is 28 km/h. The safe speed for a curve of radius 64 metes is :
A (256/7)km /h
B (256/7) km /h
C 32 km /h
D 23 km /h
A pile of length ‘L’ carrying a uniformly distributed load ‘W’ per metre length is suspended at two points, the maximum, B.M. at the centre of the pile or at the points of suspension, is
A $$\frac{{{\text{WL}}}}{8}$$
B $$\frac{{{\text{W}}{{\text{L}}^2}}}{{24}}$$
C $$\frac{{{\text{W}}{{\text{L}}^2}}}{{47}}$$
D $$\frac{{{\text{W}}{{\text{L}}^2}}}{{16}}$$
A pile of length carrying a uniformly distributed load per metre length is suspended at two points, the maximum, B.M. at the centre of the pile or at the points of suspension, is
A WL/8
B WL2/24
C WL2/47
D WL2/16
A man sells chocolates which are in the boxes. Only either full box or half a box of chocolates can be purchased from him. A customer comes and buys half the number of boxes which the seller had plus half box more. A second customer comes and purchases half the remaining number of boxes plus half a box. After this the seller is left with no chocolate boxes. How many chocolate boxes the seller had initially?
A 2
B 3
C 4
D 3.5
E None of these
The stress induced in a body, when suddenly loaded, is _________ the stress induced when the same load is applied gradually.
A Equal to
B One-half
C Twice
D Four times
The strain energy stored in a body, when suddenly loaded, is __________ the strain energy stored when same load is applied gradually.
A Equal to
B One-half
C Twice
D Four times
A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with increasing loads will behave as under
A Uniform throughout
B Increase uniformly
C First increase and then decrease
D Increase uniformly first and then increase rapidly
A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the train is 54 km/hr, what is the length of the platform?
A 300 m
B 120 m
C 240 m
D None of these
A train passes a platform in 40 sec and a woman standing on the platform in 30 sec. If the speed of the train is 108 km/hr, what is the length of the platform?
A 100m
B 300m
C 900m
D 1020m
A train passes a platform in 40 sec and a woman standing on the platform in 30 sec . the speed of the train is 108 km / hr, what is the length of the platform ?
A 100 m
B 300 m
C 900 m
D 1020 m

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