1299Civil EngineeringMedium
If the pH value of sewage is 7________?
AIt is acidic
BIt is alkaline
CNone of these
DIt is neutral
Correct answer
D. It is neutral
Explanation
The correct answer is It is neutral.
Correct answer
D. It is neutral
Explanation
The correct answer is It is neutral.
A 2 m long ladder rests against a wall and makes an angle of 30° with the horizontal floor. Where will be the instantaneous center of rotation when the ladder starts slipping?
High strength concrete is used in pre-stressed member________?
If an activity has its optimistic, most likely and pessimistic times as 2, 3 and 7 respectively, then its expected time and variance are respectively________?