A coal sample having moisture content of 8.0% has unit weight 15.6 kN/m³. The dry unit weight of the sample, in kN/m³ is _____.

The value of the integral $I = \int_{0}^{4} \sqrt{x} dx$ computed using Simpson’s 1/3 rule with 2 subintervals is _____.

In the context of sound frequency analysis, the lower and upper frequencies of a 1/1 octave band are 710 Hz and 1420 Hz respectively. The corresponding centre frequency of the band in Hz, is _____.

Which of the above sentences are grammatically CORRECT?

(i) Arun and Aparna are here.

(ii) Arun and Aparna is here.

(iii) Arun’s families is here.

(iv) Arun’s family is here.

Surface miner does NOT have a

$\text{1.}$ Some football players play cricket.

$\text{2.}$ All cricket players play hockey.

Among the options given below, the statement that logically follows from the two statements 1 and 2 above, is:

As per MMDR Act 1957, for the allocation of lease of minor minerals

The CORRECT curve showing the relationship between vertical stress on a coal pillar and extraction ratio of a bord and pillar panel in a horizontal seam is

The mirror image of the above text about the x-axis is

The equipment used for both drop cut and terrace cut in surface mining is