The effort 'P' to be applied horizontally to pull a weight 'W' on a plane inclined at an angle `alpha`with the horizontal is given by (tan `theta` is the coefficient of friction)

In
the PERT analysis, which one of the following is followed by the time
estimate of activities and probability of either occurrance ?

A
star is observed at its western elongation. If the latitude of place of
observation is `theta`, the declination of star is `delta`, altitude of star at
elongation is `alpha`, then the hour angle of star is given by

A beam of square beam is given by section 'a' is used with its diagonal horizontal. The modulus of section of the

Which one of the following conditions is a typical characteristic of critical flow (symbols have the usual meanings)

The maximum deflection of a fixed beam carrying a central load W is equal to

The representative fraction`1/2500` means that the scale is 1 cm equal to

A simply supported beam of span L carries a concentrated load W at its mid-span. If the width 'b' of the beam is constant throughout the span, then, when the permissible bending stress is 'f', the beam's mid-span depth will b

A propped cantilever of span 'L' is subjected to a concentrated load at mid-span. If M_p is plastic moment capacity of the beam, then the value of the collapse load will be