Related Questions

The rectangular beam 'A' has length ‘l’, width ‘b’ and depth ‘d’. Another beam 'B' has the same length and depth but width is double that of 'A'. The elastic strength of beam 'B' will be _________ as compared to beam ‘A’.
A Same
B Double
C Four times
D Six times
A simply supported beam 'A' of length l, breadth b, and depth d carries a central point load W. Another beam 'B' has the same length and depth but its breadth is doubled. The deflection of beam 'B' will be __________ as compared to beam 'A'.
A One-fourth
B One-half
C Double
D Four times
The rectangular beam 'A ' has length l, width b and depth d. Another beam 'B' has the same width and depth but length is double that of 'A'. The elastic strength of beam 'B' will be __________ as compared to beam A.
A Same
B One-half
C One-fourth
D One-eighth
The rectangular beam 'A' has length l, width b and depth d. Another beam 'B' has the same length and width but depth is double that of 'A'. The elastic strength of beam B will be __________ as compared to beam A.
A Same
B Double
C Four times
D Six times
In Belgium method of tunnelling
A Construction of side walls is completed before invert and roof arch are built
B Construction of roof arch is completed before side walls and inverts are built
C Construction of invert is completed before side walls and roof arch are built
D Construction of invert and side walls is completed before roof arch is built
Which one of the following statements is not correct for heading and benching method of tunnelling?
A Drilling and mucking can be done simultaneously
B Benching provides a platform for working on heading
C Removal of muck from the heading is very easy
D None of these
Which one of the following statements is not correct with regard to heading and henching method of tunnelling?
A Driving of tunnel is done in two portions of its section
B Driving the top portion is done in advance of the bottom portion
C The holes in head and bench are loaded together with explosive for blasting
D Firing of head holes is done just before the bench holes are fired
Forepoling method is generally adopted for tunnelling in:
A Soft ground
B Firm ground
C Running ground
D None of these
A simply supported beam which carries a uniformly distributed load has two equal overhangs. To have maximum B.M. produced in the beam least possible, the ratio of the length of the overhang to the total length of the beam, is
A 0.207
B 0.307
C 0.407
D 0.508
Pick up the explosive used for tunnelling in soft rocks from the following:
A Blasting gelatine
B Special gelatine
C Ammonia dynamite
D Semi-gelatine

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