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For the part related to basic professional courses, I don’t remember everything; it’s just a general outline. Feel free to add more details. I hope it can provide a little help to those taking the exam. 1 The four thermodynamic processes in the Rankine cycle 2 What is included in volume work 3 Cycles that achieve cooling by consuming work include: 4 Definition of the dryness fraction of steam: 5 The most ideal compression process for a compressor is: 6 The system releases heat through one thermodynamic process, does work of 27, returns to its original state, then heats up and does work of ( ). 7 The gas meter reading is 668.5; at that time, p = 653 Pa and t = 17 degrees Celsius. The atmospheric pressure is 100.1 KPa. Calculate V_std. 8 Moisture content of moist air 9 For an ideal gas in a converging nozzle, given C1, T1, P1, determine C2 at T2 and P2 10 For 1 kilogram of air at 3 MPa and 800 K, undergoing an irreversible expansion to 1.5 MPa and 700 K, with the gas constant for air being 0.278 KJ/kg·K and the adiabatic index being 1.4, calculate the entropy change. 11 Calculation of thermal conductivity using the steady-state flat-plate method 12 Statement of one-dimensional heat conduction in an infinite flat plate 13 Two-dimensional heat conduction, finite difference method 14 Use of Re similarity to establish the relationship between energy transfer and momentum transfer in forced turbulent convection: Re and Cf, St and Cf, Nu and Cf, Cr and Cf 15 Relationship between forced convective heat transfer and surface roughness 16 Which has greater heat transfer: vapor condensing into droplets on an upright side wall or when it spreads evenly 17 Calculation of blackbody radiation force 18 Graybody radiation and heat loss formulas 19 Comparison of heat transfer efficiency when two plates are arranged vertically parallel or horizontally parallel 20 Determination of the logarithmic mean temperature difference in heat exchangers 21 Empty 22 Empty 23 Empty 24 The attachment length of the air supply jet in air conditioning depends on 25 In circular flow, which loop has irrotational flow? 26 Calculation based on changes in the speed of a single-suction pump 27 Description using stream functions 28 Necessary conditions for model testing in ventilation and air conditioning systems 29 Calculation of the maximum installation height for water pumps 30 When system resistance varies greatly, which type of q-h performance curve should be chosen for the fan? 31 Typical open-loop control systems 32 Evaluation of the superiority of control systems 33 Mason’s formula 34 Transfer functions 35 Determining the stability of a closed-loop system based on open-loop logarithmic plots 36 Calculation of the acceleration error coefficient from the open-loop transfer function 37 Relationships among various parameters for a first-order element under step input 38 Measures to increase the frequency response bandwidth 39 Z-transform expression of the transfer function 1/S 40 The temperature scale that does not depend on the physical properties of an object is 41 To measure temperature differences, two thermocouples should ( ) 42 Use of throttle flow meters 43 Hall effect pressure sensors 44 Instruments with sensitive elements whose resistance changes 45 Measurement errors 46 Thermometers that cannot be used to measure steam temperature 47 Wiring of differential pressure transmitters for long-distance transmission 48 Measurement of vapor pressure (with condensation water) 49 Hardness relationship between the large and small gears in soft toothed gear drives 50 Requirements for proper meshing 51 Selection of bearings for heavy loads 52 Places where rolling bearings are not suitable 53 Definition of the lifespan of rolling bearings 54 Calculation of screw drives 55 Problems related to cam forces 56 Mechanisms that can be formed using four links; conditions for a planar mechanism to have definite motion 57–60 Laws and regulations. That’s basically all; I’m not very sure about these details.