Miscellaneous
Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more
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Precious Metals - Unit of Fineness
Unit of gold fineness - Karat
Abbreviations according International Electrotechnical Commission
Conforming abbreviations according IEC
Air Temperature and Altitude
Altitude - air temperature and air density
Altitude above Sea Level and Air Pressure
Elevation above sea level - in feet and meter - with barometric and atmospheric pressure - inches mercury, psia, kg/cm2 and kPa
Antifreeze and Required Amount
Protected cooling system temperature and required amount of antifreeze
Apothecaries' Weight System
Apothecaries' fluid and weight system - ounce, drachms, grains, scruples ..
Area Survey App
Online calculator app to make an exact plot of a surveyed area - like a room, a property or any 2D shape
Assembly of Shrink-Fits
Heating temperatures of shrink-fits
Barometer - Compensation for Altitude
Compensating manometer for elevation
Barometric Pressure - Pressure in Pounds per Square Inch and Square Foot
Relation between barometric pressure (inches Hg) and pressure in psi and psf
Beaufort Wind Scale
The Beaufort description and observation of wind and wind velocity
Blueprint Letters
Letters used to differentiate blueprint drawings
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Board Feet Chart
Board Foot - volume measurement of lumber
Bolt - Stress Area
Stress area in UN and UNR bolts
Bolts - Lubrication Effects on Torque and Tension
Lubrication effects on torque and bolt tension
Bricks - Quantity and Mortar Consumption
Estimating required quantity of bricks and mortar
Builder's to Surveyor's Measurements
Convert builder's measurements to surveyor's measurements
Building Foundations - Loads
Typical loads on building foundations
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Building Tolerances
Tolerances for floors, walls, columns and more
CE Marking
The European Machine Directive
Center of Gravity
Bodies and their center of gravity
Chemicals - Formulas and Trading Names
Formulas and trading names for some common chemicals
Clothes - Comparing US, UK and European Sizing
Comparing European, UK, US sizing in clothing, shoes, shirts and sweaters
Color Mixing Theory
Subtractive and additive color mixing theories
Concrete - Calculate Cubic Volume
Calculating required concrete volume
Concrete - Volume Estimate
Estimate required concrete volume per sq. ft. of slab
Concrete - Water to Cement Ratios
Concrete and water to cement ratios
Concrete Columns
Estimate concrete volume required for concrete columns
Concrete Footing Volume
Estimate required concrete footing volume
Concrete Slab Load Capacity
Load capacity of simply supported concrete slabs
Concrete Slab Thickness
Recommended thickness of concrete slabs
Concrete Walls
Estimate volume in concrete walls
Constants of e
e constants
Constants of π (pi)
π constants
Conveyor Capacity
Calculate the capacity of conveyors
Conveyors - Load & Power Consumption
Load and conveyors required power consumption
Conveyors - Maximum Slopes
Maximum conveyor slopes for various materials
Cooking Volume Converter
Convert liquid cooking volumes
Cooking Volume Converter - US and Metric Units
Convert common cooking liquid and dry measuring volumes between US and metric units
CSI MasterFormat Specifications
Construction Specifications Institute's 2004 Master-Format Edition
Decibel
Decibel is a logarithmic unit used to describe the ratio of a signal level - like power, sound pressure, voltage, intensity etc. to a reference level
DFA - Design for Assembly index
Design for Assembly Index
Dimensionless numbers
Definitions and symbols for physical and chemical dimensionless quantities, with areas of application of the different numbers. Reynolds, Euler, Nusselt, Prandtl..... and many more
Distance Traveled - Speed versus Time
Speed (miles per hour) and time (hours) and distance traveled (miles) chart
Distances between cities
Flight distances between selected cities in different countries and continents, to be used to calculate CO2 emissions from long distance flights
Drawings - Sheet Layouts
Standard layouts of drawing sheets
Drawings - Standard Metric Sizes
Standard metric drawing sheet sizes
Drill Bit Speed - Hardwood and Softwood
Hardwood and softwood drill speed chart
Driving Distance between European Cities
Driving distance between some major European cities
Dumping or Tipping Angles
Tipping angles for some common materials like ashes, sand, earth, shingles ...
Dust Explosions - Critical Temperatures and Concentrations
Critical temperatures and concentration parameters for substances like coal, zinc, uranium and more
Effects of Low-Frequency Vibrations on Buildings
Effects of low-frequency vibrations on building constructions
Electrical Equipment and Power Consumption
Typical power consumption and running time for some common electrical equipment
Electrode Potential and Galvanic Corrosion
Introduction to electro chemical series and corrosion of metals
Elevation and Speed of Sound
Speed of sound, temperature and pressure at different altitudes
Engine & Gear Oil - Temperatures and Viscosity Limits
Oil viscosity vs. temperature
Excavation Slope
Calculating excavation slope
Factors of Safety
Factors of Safety - FOS - are important for engineering design
Fasteners - Types Chart
Wood screws, machine screws, sheet metal screws, self drilling SMS and more
Feet to Inches Converting Chart
Convert from feet and inches to inches
Fire-Stop Ratings
F-rated, T-rated and L-rated fire-stop systems
Food Products and Osmotic Pressure
Osmotic pressure of food products
Friction and Friction Coefficients
Friction theory and coefficients of friction for ice, aluminum, steel, graphite and other common materials and materials combinations
Frozen Food - Storage Life
Practical storage life for some common frozen food products
Fruits and Vegetables - Optimal Storage Conditions
Optimal temperature and humidity conditions for some common fruits and vegetables
Fuel Consumption Converter
Convert between common fuel consumption units - US MPG, Imperial MPG, l/nm, l/100 km and km/litre
Fuel Consumption in liter per km
Distance traveled and fuel consumption in liter/km chart
Gauge and Weight Chart
Gauge and weight chart for sheet steel, galvanized steel, stainless steel, aluminum and strip & tubing
Glue-Laminated Timber - Dimensions
Typical sizes of glue-laminated timber
Golden Section
Or Golden Mean
Gravel - Cover Area
Gravel aggregate covering area
Grease Temperature Limits
Grease is a combination of oil and thickener
Hardwood Lumber - Dimensions
Size of hardwood lumber
Hazardous Areas Classification - European Standard
European hazardous area classification in zones, protection types, temperature codes and codes
Hazardous Areas Classification - North America
North American hazardous locations classification in classes, divisions and groups
HTML Color Codes
Safe html color codes
Inches - Decimal Equivalents
Decimal equivalents of eights, sixteenths, thirty-seconds and sixty-fourths of an inch
International Standard Atmosphere
International standard atmosphere in elevation -2000 to 30000 meters - pressure, temperature, density, viscosity, thermal conductivity and velocity of sound
Latitude and Acceleration of Gravity
Acceleration of gravity varies with latitude
Latitude and Longitude Converter
Convert between Degrees, Minutes and Seconds and Decimal Units (or vice versa)
Lead Acid Batteries
Specific gravity and charge of lead acid batteries - temperature and efficiency
Length Units Converter
Convert between units like meters, feet, inches, yards, kilometers and miles
Machine Processing and Tolerance Grades
Machine processing and tolerances
Manila Rope - Strength
Manila 3-strand rope - minimum breaking strength and safe load
Mapping Scales - Length and Area
Convert between mapping scales and length and area
Masonry Blocks - Dimensions
Concrete Masonry Unit Blocks (CMU) - dimensions
Materials - Light Reflecting Factors
Light reflecting factor materials
Mechanical Processing and Surface Roughness
Mechanical production methods and surface roughness
Metric Bolts - Head and Wrench Sizes
ANSI/SO, DIN and JIS bolts
Mild Steel - Round Bar
Round bar weights
Mild Steel - Square Bars
Typical weight of mild steel square bars
Miles per Gallon - mpg
Estimating mpg - distance traveled versus fuel consumption chart
Minutes to Decimal Hours
Converting minutes to descimal hours
Mortar Types
ASTM Mortar Types
Nails and Spikes
Allowable withdrawal load
Numerical Constants
Some numerical constants
Nylon Rope - Strength
Nylon 3-strand and 8-strand rope - minimum breaking strength and safe load
Oil - Lubrication and Temperature Limits
Temperature limits for lubricating oils
Online Mortgage Payment Calculator
Calculate mortgage payment with Annual Interest Rate, Number of Years and Amount Borrowed
Paper Drafting Sizes - Comparing ISO and U.S. Drawing Sheets
ISO compared with U.S. and Canadian drawing sheets
Paper Drafting Sizes - ISO 216 series A, B and C
The ISO 216 A, B and C drawing series - dimensions of regular, oversized and envelope sheets
Paper Sizes - commonly used in U.S. Offices
Office paper sizes as Letter, Legal, Tabloid and more
Paper Sizes - Imperial
Sizes used for printing and drawing papers
Pasteurization Temperatures
Pasteurization methods and temperatures
pH Definition - basic (alkaline) and acidic
Introduction to pH - acidic and basic (alkaline)
Poisson's ratio
When a material is stretched in one direction it tends to get thinner in the other two directions
Polyester Polyolefin Rope - Strength
Polyester Polyolefin dual fiber 3-strand rope - minimum breaking strength and safe load
Polyester Rope - Strength
Polyester 3-strand and 8-strand rope - minimum breaking strength and safe load
Polypropylene Fiber Rope - Strength
Polypropylene fiber 3-strand and 8 strand rope - minimum breaking strength and safe load
Rebar - Metric Reinforcing Bar
Reinforcing bar - European metric dimensions
Rebar - U.S. Imperial Reinforcing Bar
U.S. imperial dimensions of rebar
Rebar - Weights
Weights of rebar rods - size ranging 1/4
Rectangular Tanks - Volume
Tank volume per foot depth
Roman Numerals
Roman numerals are a combinations of seven letters
Roof Framing
Run, Roof Slope, Gable Height and Gable Area
Roofing Materials - Weights
Weight calculator for roofing materials
Safety Signals - recommended Colors
American National Standards Institutes schedule for safety colors marking physical hazards
Sandpaper - Grit Sizes
Grit sizes ranging 12 - 600
Scale of Objects
The relative scale of objects
Scientific and Engineering Terms - ANSI Abbreviations
Abbreviations for Use on Drawings and in Text - ANSI Y1.1
Shackles - Safe Loads
Safe loads of shackles
Shipping Measuring Units
Vessel and cargo capacities
Sieve Size and Mesh Designation
US commercial sieve sizes and mesh designations
Sisal Rope - Strength
Sisal rope 3-strand, minimum breaking strength and safe load
Slope - Degree, Gradient and Grade Converter
Converting slopes between degrees, gradients and grades
Softwood Lumber - Dimensions
Commercial softwood lumber dimension chart - nominal and actual sizes
Softwood Lumber - Grading
Rough lumber, surfaced lumber (dressed), worked lumber, shop and factory lumber and yard lumber
Soil and Rock - Bulk Factors
Soil and rock expansion - or swell - after mining
Speed and Velocity Converter
Convert speed and velocity units - m/s, km/h, knots, mph and ft/s
Speed vs. Time and Distance Traveled Graph Calculator
Velocity plotted against time diagram
Sprinkler Protection Area
Maximum fire sprinkler protection area
Stair Calculator
Calculate unit rise and run in stairs
Standard Gauges
Standard gauges for wire and sheet - American, Birmingham, Washburn, Music, Stubs ..
Standard test methods (ASTM and others) and specifications for petroleum products
An overview of common test methods and specifications of petroleum fuels. What, why and how do the different test?
Standard test methods (ASTM and others) for crude oil properties
An overview of common test methods and typical ranges of variation of petroleum quality parameters. What, why and how do the different test?
Standard US Architectural Drawing Sizes
Commonly used US architectural drawing sizes and formats
Standard US Engineering Drawing Sizes
US engineering drawing sizes based on ANSI/ASME Y14.1
Steel Flats - Weight
Typically weight of mild steel flats
Steel Plates - Size & Weight
Size & weight of steel plates - thickness ranging 3/16 - 10 inches - metric units
Steel Tempering Colors
The tempering process of hardening steel
Steel Wool Grades
Steel wool grades and fiber thickness
Stockpile Volumes
Volume of natural stockpiles - cubic feet, yard, meter and decimeter
Stone - Weight and Strength
Weight and strength of sandstone, granite, limestone, marble and slate
Surface Finishing
Lumber and surface finishing abbreviations
Surface Roughness and Abrasive Grain Size
U.S. mesh size and surface roughness
Symbols Used to Denote a Chemical Reaction, Process or Condition
Explanation of symbols used as subscripts or superscripts to tell more about the type of chemical reaction, process or condition
Tank Volume
Volume of cylindrical (round) tanks - US. gallons per foot of dept or length
The Greek Alphabet
The Greek alphabet is essential when expressing formulas and technical language
Threads - Metric ISO 724
M Thread (metric ISO 724 thread) European Standard
Trees - Urban Heights
Height of trees commonly used in towns and urban areas
Trees - Water Demand
Trees and their relative water demand
Trench Excavation
Estimate trench excavation - online calculator
Troy Weight
Weight of gold and silver
Types of Contracts
Commonly used engineering and construction contracts
Uniformat
The ASTM E1557 UNIFORMAT II Standard
US and Metric Fasteners - Thread Sizes
Printable fastener tools
US Bolts - Head and Wrench Sizes
Hex Bolt, Lag Bolt, Square Bolt and Heavy Hex Bolt
US Machine Screws
Machine screw diameters
UTM to Latitude and Longitude Converter
Online UTM to Latitude Longitude converter
Value Engineering
Enhancing function and improving value
Vehicle - Speed, Time and Distance Traveled
Speed (km per hour), time (hours) and distance traveled (km)
Vehicles - Traffic Flow and Density
Vehicles flow and density in highway design
Walls - No. of Studs
Calculate the number of studs in a wall
Wire Rope - Strength
6 strand x 19 wire (6x19) - minimum breaking strength, safe loads and weight
Wood - Moisture and Compressive Strength
Red Spruce, Longleaf Pine and Douglas Fir - moisture content and their compressive strength
Wood Screws - Holes
Hard wood and soft wood pilot holes, shank clearance holes and countersink diameters
Wood Screws - Shank Diameters
Shank diameters and pilot holes
Wood Screws Withdrawal Force
Allowable withdrawal load force
Wrench Conversion Chart
SAE to Metric converter - inches vs. mm
