Consider following statement regarding tests on cement
1) For a sound cement, expansion due to lime in Le chatelier method shall not be more than 10 cm
2) Autoclave test is used to measure soundness due to presence of magnesia in cement.
3) In vicat’s apparatus to determine setting time of cement, 10 mm diameter plunger is used to determine initial setting time.
4) Blair’s air permeability method is used to determine fineness of cement.
Correct statement(s) is/are:
Question 2
Calculate the correction for pull if the pull applied on the tape is 50 N more than the pull at which tape was standardised. Standard length of the tape was 30 m.
Question 3
Consider following statements about ‘Guniting’
1) It is method of repairing concrete work
2) Gunite is a mixture of cement: sand in proportion 1:3
3) Cement sand mixture is deposited on the existing concrete surface under a pressure of 10-12 kg/cm2
Correct statement(s)/are:
Question 4
Which one of the following Remote Sensing Systems employs only one detector?
Question 5
What will be the capitalised value of a property if the net annual return from that property is Rs 45000. The highest prevailing rate of interest is 7.5%.
Question 6
When working with unsymmetrical sections in bending, it is recommended that the load should pass through ___________?
Question 7
A circular hollow section of internal diameter of 195 mm and external diameter of 205 mm is subjected to a torque of 100Nm. What will be the shear flow over the section?
Question 8
Which of the following statement is incorrect?
Question 9
A fluid’s viscosity and unit weight are reduced to 60% and 80%, due to increase in temperature. If other things remain constant, then the change in coefficient of permeability will be
Question 10
Effective span for waist slab supported on landing slabs spanning transversely to the flight as shown below will be
