Mountains resulting from the depression or elevation of blocks of the earth crust on a large scale due to faulting and these elevated structures are commonly called
Question 2
Statement (I): Finer grinding of cement results in early development of strength.
Statement (II): The finer the cement, the higher is the rate of hydration.
Question 3
Statement (I): Coarser the particles, less is optimum moisture content
Statement (II): The specific surface area of coarser particle is less.
Question 4
Which of the following conditions are recommended for using sulphate resisting cement?
(1) Concrete to be used in foundation and basement, where soil is not infested with sulphates
(2) Concrete used for fabrication of pipes which are likely to be buried in marshy region or sulphate bearing soils
(3) Concrete to be used in the construction of sewage treatment works
Question 5
Consider the following data for concrete with mild exposure:
Water-cement ratio = 0.50
Water = 191.6 liter
The required cement content will be
Question 6
The cement and water slurry coming on the top and setting on the surface is called
Question 7
Which one of the following type of ecology is dealt with autecology?
Question 8
Phycological responses accompanying response and other noise exposures include:
1) A vascular response characteristic by peripheral vasoconstriction, changes in hear beat rate and blood pressure
2) Various glandular charges such as increased output of adrenaline evidenced by chemical changes in blood
3) Slow, deep breathing
Question 9
Consider the following statements regarding the overflow rate of sedimentation tank: (i) Temperature of water affects the overflow rate (ii) Size of particle intended to be removed does not affect the overflow rate (iii) Density of particle intended to be removed affects the overflow rate Which of the above statements are correct?
Question 10
Consider the following statements regarding removal of impurities from water: 1) Settleable solids are removed by filtration. 2) Volatile solids are removed through sedimentation. 3) Dissolved solids are removed through reverse osmosis. 4) Colloidal solids are removed by coagulation. Which of the above statements are correct?
