Industrial Drawing Tawjihi cheat sheet 2026

Drawing DC Signals

A technical guide to accurately representing DC signals graphically by mastering axis scaling, unit definition, and precision plotting.

Factors Affecting Drawing Accuracy

• Scale selection ← Proportional representation
• Sampling density ← High precision
• Axis calibration + Unit labeling ← Clarity
• Tool precision + Human factor ← Final output quality

Sine Wave Drawing (Industrial Drawing)

A systematic guide to constructing sinusoidal waveforms using the circle method, focusing on geometric precision and time-angle proportionality.

The Circle Method: Step-by-Step

• 1. Set up axes (Voltage vs. Time) with scale.
• 2. Draw circle with diameter = Vp-p.
• 3. Divide circle into equal sectors (e.g., 45° increments).
• 4. Calculate time for each angle: t = ()/(360^) × T.

الموجة المربعة

A comprehensive guide to understanding, calculating, and drafting square and rectangular waves based on industrial drawing standards.

Drafting Procedure

• Step 1: Define axes based on the given scale (e.g., V/cm and mSec/cm).
• Step 2: Calculate T and split into t1 and t2 based on the duty cycle.
• Step 3: Convert time and voltage values into physical centimeters using the scale factors.
• Step 4: Plot intersection points and connect them to form the wave profile.

Drawing Triangular and Sawtooth Waves

A strategic guide to mastering the geometric construction of periodic signals by calculating time intervals, amplitude, and scale factors.

Core Mathematical Foundations

• Period calculation: T = (1)/(f)
• Total time: T = t1 + t2 (where t1 is rise time and t2 is fall time)
• Triangular Wave symmetry: t1 = t2 = (T)/(2)

Analog Circuits: Drawing and Standards

Mastering the standardization of electronic symbols, circuit analysis, and the functional design of power supplies and operational amplifiers.

Standardization & Passive Components

• Standards: DIN (VDE), ANSI Y32.2, European standards.
• Coils: Core types (Iron/Ferrite/Air) based on frequency ← Ferrite for high frequency.

Algorithms and Flowcharts

A comprehensive guide to mastering algorithmic logic and flowchart design, focusing on sequential, branched, and loop structures.

The Counter Logic (Counting Algorithm)

• Step 1: Initialize counter (usually Counter = 0).
• Step 2: Update rule: Counternew = Counterold + StepValue.
• Step 3: Execute tasks.
• Step 4: Repeat until the exit condition is met.

الدارات المنطقية

A comprehensive guide to designing, analyzing, and understanding digital logic circuits, from basic gates to complex registers and arithmetic units.

Shift Registers (4-bit)

• SISO: Serial In, Serial Out (1 bit per clock pulse).
• SIPO: Serial In, Parallel Out (Data shifts, then read in parallel). [[figure: p78SIPOregister]]
• PISO: Parallel In, Serial Out (Load all bits, shift out one by one). [[figure: p79PISOregister]]
• PIPO: Parallel In, Parallel Out (Instantaneous load and output). [[figure: p80PIPOregister]]

Computer-Aided Drafting (CAD) Exercises

A systematic guide to executing technical engineering drawings using CAD software, focusing on the transition from manual geometric concepts to precise digital schematics.

CAD Workflow Essentials

• Preparation ← Setting units, grid, and snap settings.
• Execution + Precision ← Applying geometric constraints to exercises 14-3 through 25-3.
• Verification ← Checking dimensions against original source specifications.

Control and Power Circuits

A comprehensive guide to industrial control systems, power electronics, and PCB design principles for high-performance exam preparation.

Rectification Circuits

• Half-Wave (3-phase, uncontrolled): 3 Diodes + Neutral wire → Output never hits zero.
• Full-Wave (3-phase, uncontrolled): 6 Diodes (No Neutral) → Higher DC output voltage.
• [[figure: p1003phasehalfwaverectifier]]
• [[figure: p1013phasefullwaverectifier]]

المتحكم المنطقي المبرمج (PLC)

A comprehensive guide to mastering PCB layout principles and the logic of Programmable Logic Controllers (PLC) using Ladder Diagrams.

PLC Ladder Diagram Rules

• Activation Logic: Output = 1 only if input logic result = 1.

Modulation and Communication Systems

A comprehensive guide to signal modulation, antenna symbols, and BJT amplifier configurations for industrial drawing and electronics.

BJT Amplifier Configurations

• Common Emitter: Voltage & Current gain + 180° phase shift.
• Common Collector: Current gain only + No phase shift (Voltage gain ≈ 1).
• Common Base: Voltage gain only + No phase shift (Current gain ≈ 1).

Representation Diagrams and Electronic Systems

A comprehensive guide to mastering circuit representation, amplifier classifications, and transistor configurations for exam success.

Amplifier Classifications

• Class A: Simple design + low distortion ← high fidelity.
• Class B: Push-pull operation ← high efficiency, high switching.
• Class AB: Hybrid (A+B) ← linear behavior + low distortion.
• Class C: High efficiency + poor linearity ← RF/High-frequency use.

نظريات الصوت

A comprehensive guide to sound wave phenomena, microphone applications, and the operational characteristics of audio amplifier classes.

Wave Phenomena: Interference, Refraction & Diffraction

• Constructive Interference: Waves in-phase → Resultant wave with doubled amplitude.
• Destructive Interference: Phase shift of 180° → Waves cancel out/reduce intensity.
• Diffraction: Waves spread around obstacles → No sharp shadows; most visible when wavelength ≈ obstacle size.

Color Theory: Principles and Applications

A comprehensive mastery of color properties, mixing systems, and psychological impacts for industrial design applications.

Color Fundamentals & Properties

• Value: Brightness/Darkness ← Reflective capacity.
• Chroma (Saturation): Purity ← Degree of mixing with neutral colors (Black, White, Gray).
• Light Waves: Violet (shortest) to Red (longest) ← Measured in Angstrom units.

What is the Industrial Drawing Tawjihi cheat sheet?

Concise revision pages for Industrial Drawing that gather the key laws, ideas, and exam tips for each lesson.

Is it based on the prescribed curriculum?

Yes — built from the prescribed curriculum and official units. You can preview cheat sheets inside TawjihiAI.