The article reveals the role of computer-based tests as an integral component of an EFL course for non-linguistic students who need to communicate effectively in English. In this article computer-based tests are considered effective up-to-date means of control. In addition to this, the role of electronic tests in optimization of the teaching process is reviewed. Electronic English grammar tests, developed for the students and postgraduates studying at the Computer Science Department of Tomsk State University, were compiled to correspond to the content and the level of difficulty and to comply with the students' individual needs. We give reasons for our choice of the Virtual Learning Environment Moodle and its Quiz module to deploy the tests.

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A prediction of the permeability of gas-bearing coking coals in the Leninsky area, Kuznetsk coal basin (Kuzbass), which is promising for the production of coal methane, was performed. The results of laboratory studies of coal permeability and cleat compressibility under hydrostatic stress conditions are presented. As the confining pressure increased by 8 times (from 1 MPa to 8 MPa), the coal permeability perpendicular to the butt cleat direction decreased by 6.7 times (from 60 mD to 9 mD). The coal cleat compressibility was 0.085 MPa−1. On the basis of the results of filtration tests and microstructural analysis of the coking coals, we provide the estimation of the permeability anisotropy along the bedding planes (perpendicular to the face and butt cleat directions). The predicted dependences of gas-bearing coking coal permeability perpendicular to the butt and face cleat directions on depth and on features of coal seam bedding were determined under uniaxial strain conditions. It was found that in the coking coal depth intervals, as the depth increased, their permeability decreased by 61–82%. The obtained results can be used to select facilities and to design industrial works for the extraction of coal methane in the region.

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