GATE2020 Building Materials & CMT Rapid Mini Mock (App update required to attempt this test)

Which of the following is not correct for earnest money?

In the context of provisions relating to durability of concrete, consider the following assertion:

Assertion (1): As per IS 456-2000, air entrainment to the extent of 3% to 6% is required for concrete exposed to marine environment.

Assertion (2): The equivalent alkali content (in terms of Na₂O equivalent) for a cement containing 1% and 0.6% of Na₂O and K₂O, respectively, is approximately 1.4% (rounded to 1 decimal place).

Which one of the following statements is correct?

The characteristic compressive strength of concrete required in a project is 25 MPa and standard deviation in the observed compressive strength expected at site is 4 MPa. The average compressive strength of cubes tested at different water-cement (w/c) ratios using the same material as is used for the project is given in the table.

The water-cement ratio (in percent, round off to the lower integer) to be used in the mix is________

Match List I with List II and select the correct answer using the codes given below-:
List I
P. Gypsum.
Q. Calcium Lignosulphate.
R. Air entraining admixture.
S. Calcium Chloride.
List II
1) Accelerator
2) Water reducer
3) Retarder
4) Reduce segregation

For the network shown below, the critical path is ?

The free float of activity 3-4 is ________.

The network of a small construction project awarded to a contractor is shown in the following figure. The normal duration, crash duration, normal cost, and crash cost of all the activities are shown in the table. The indirect cost incurred by the contractor is INR 5000 per day.

If the project is targeted for completion in 16 days, the total cost (in INR) to be incurred by the contractor would be _____