In CPM, the earliest event time of the initial node is taken as

The hydraulic gradient is defined as

The most suitable instrument for measuring horizontal angles precisely is

The degree of static indeterminacy of a two-span continuous beam is

Use of admixtures in concrete mainly aims at modifying

The standard deviation of project duration in PERT is

The most suitable sewer section for combined sewers is

If contours are closely spaced, the ground is

In a simply supported beam, the reaction forces are obtained using

The phenomenon of creep in concrete is more significant at

The difference between latest finish and earliest finish of an activity is

The purpose of secondary treatment in sewage treatment is mainly

True meridian is established by

The stiffness method is also known as

Portland slag cement is manufactured by blending

Free float of an activity can be calculated only when

The maximum permissible limit of nitrate in drinking water is

The height of instrument method of leveling is preferred because it

Castigliano’s second theorem is used to determine