Related Questions

For a longitudinal reinforcing bar in a column, the minimum cover shall neither be less than the diameter of bar nor less than
A 15 mm
B 25 mm
C 30 mm
D 40 mm
Lacing bars in a steel column should be designed to resist
A Bending moment due to 2.5% of the column load
B Shear force due to 2.5% of the column load
C 2.5% of the column load
D Both (A) and (B)
In order to have a connecting rod equally strong in buckling about X-axis and Y-axis, the moment of inertia about X-axis should be __________ the moment of inertia about Y-axis.
A Equal to
B Twice
C Three times
D Four times
If the tendon is placed at an eccentricity e below the centroidal axis of the longitudinal axis of a rectangular beam (sectional modulus Z and stressed load P in tendon) the stress at the extreme top edge
A Is increased by $$\frac{{{\text{PZ}}}}{{\text{e}}}$$
B Is increased by $$\frac{{{\text{Pe}}}}{{\text{Z}}}$$
C Is decreased by $$\frac{{{\text{Pe}}}}{{\text{Z}}}$$
D Remains unchanged
The moment of inertia of a solid cylinder of mass 'm', radius 'r' and length '$$l$$' about the longitudinal axis or polar axis is
A $$\frac{{{\text{m}}{{\text{r}}^2}}}{2}$$
B $$\frac{{{\text{m}}{{\text{r}}^2}}}{4}$$
C $$\frac{{{\text{m}}{{\text{r}}^2}}}{6}$$
D $$\frac{{{\text{m}}{{\text{r}}^2}}}{8}$$
The slenderness ratio of lacing bars should not exceed
A 100
B 120
C 145
D 180
When a bar of length '$$l$$' and diameter 'd' is rigidly fixed at the upper end and hanging freely, then the total elongation produced in the bar due to its own weight is (where w = Weight per unit volume of the bar)
A $$\frac{{{\text{w}}l}}{{2{\text{E}}}}$$
B $$\frac{{{\text{w}}{l^2}}}{{2{\text{E}}}}$$
C $$\frac{{{\text{w}}{l^3}}}{{2{\text{E}}}}$$
D $$\frac{{{\text{w}}{l^4}}}{{2{\text{E}}}}$$
The effective length of lacing is the distance
A Between the inner end rivets of the bar for single lacing
B 0.7 of the distance between the inner end rivets of the bar for double lacing
C Between the inner ends of effective lengths of welds connecting the members
D All the above
For the given values of initial velocity of projection and angle of inclination of the plane, the maximum range for a projectile projected upwards will be obtained, if the angle of projection is
A $$\alpha = \frac{\pi }{4} - \frac{\beta }{2}$$
B $$\alpha = \frac{\pi }{2} + \frac{\beta }{2}$$
C $$\alpha = \frac{\beta }{2} - \frac{\pi }{2}$$
D $$\alpha = \frac{\pi }{4} - \frac{\beta }{4}$$
E $$\alpha = \frac{\pi }{2} - \frac{\beta }{2}$$
A body will begin to move down an inclined plane, if the angle of inclination of the plane is ________ the angle of friction.
A Equal to
B Less than
C Greater than
D None of these

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