For the calculation, specific average values are introduced that characterize the effective cross sections for the vapor channels and the wick in the longitudinal and transverse directions, physical parameters (porosity of the wick and its degree of liquid saturation). A two-dimensional mathematical model for calculating heat transfer processes in the designed thermal panel is presented. An increase in the working area in the future will enable the installation of large-sized electronic equipment. At the moment, the main dimensions reach 600-800 mm. The dimensions of the thermal panel are limited by the structural dimensions of the working area of 3D printers. The designed thermal panel is a flat sealed panel of a single complex design of aluminum alloy, made by the additive technology method. A constructive option is proposed for creating an energy-intensive thermal panel, which allows more efficient heat removal from devices and distribution over the panel. The analysis of the current thermal control system in modern satellites is carried out and its shortcomings are revealed. In order to meet the requirements for the temperature control system in terms of ensuring efficient heat removal from the on-board equipment devices and its distribution over the surface of the instrument installation panel, it is necessary to significantly improve the technical characteristics of heat transfer and heat conduction processes in the spacecraft. This article discusses the problem of the influence of asymmetric heat fluxes from the surfaces of the spacecraft emanating from the panels ± Z, + Y (deterministic and non-deterministic component) on the level of unmodeled accelerations, which significantly affects the trajectory of the spacecraft. Today, in the design and manufacture of a spacecraft to meet the requirements of the technical specifications for the maximum allowable values of unmodeled accelerations during the operation of on-board equipment, it is necessary to take into account the effects of asymmetric heat fluxes from the panels of the spacecraft on the deviation of its center of mass from a given orbit. To clarify the trajectory of the spacecraft in a given orbit, the parameter of unmodeled acceleration is taken into account.
This question bank in PDF format, so that you can download them instantly in E-book style.įollowing section consists of some important multiple choice questions (mcq) on computer operation with answers. We will keep adding more questions and provide Presently we have added total 4 sets of questions on computer operation for you to practice. These frequently asked sample questions on Computer are given with correct choice of answer that you can check instantly. Here you will find a list of common important questions on computer operation in MCQ quiz style with answer for competitive exams and interviews. Please visit related topic like MS Word, MS Excel, Computer Fundamentals etc.
Here we have compiled some must know aspects in mcq style for your idea on popular Windows Operating System. Apart from that candidates applying for any other positions should have at least some minimum level of understanding of handling computers for day to day job. Computer Operation Proficiency in Microsoft Windows OS : Knowledge of basic computer operation is a must for all positions that requires basic computer proficiency, e.g Data Entry Operator (DEO) or Computer Operator.