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Sunday, May 22, 2016

Characteristics of Wind

Dear Readers,

This is continuation with our earlier post of Wind, Now let us see about the effects on sea and land for different type of winds.


Label

Effect on sea

Effects on land

Calm

Sea like a mirror

Calm. Smoke rises vertically.

Light Air

Ripples with the appearance of scales are formed, but without foam crests

Wind motion visible in smoke.

Light Breeze

Small wavelets, still short, but more pronounced. Crests have a glassy appearance and do not break

Wind felt on exposed skin. Leaves rustle.

Gentle Breeze

Large wavelets. Crests begin to break. Foam of glassy appearance. Perhaps scattered white horses

Leaves and smaller twigs in constant motion.

Moderate Breeze

Small waves, becoming larger; fairly frequent white horses

Dust and loose paper raised. Small branches begin to move.

Fresh Breeze

Moderate waves, taking a more pronounced long form; many white horses are formed. Chance of some spray

Branches of a moderate size move. Small trees begin to sway.

strong Breeze

Large waves begin to form; the white foam crests are more extensive everywhere. Probably some spray

Large branches in motion. Whistling heard in overhead wires. Umbrella use becomes difficult. Empty plastic garbage cans tip over.

Near Gale

Sea heaps up and white foam from breaking waves begins to be blown in streaks along the direction of the wind

Whole trees in motion. Effort needed to walk against the wind. Swaying of skyscrapers may be felt, especially by people on upper floors.

Gale

Moderately high waves of greater length; edges of crests begin to break into spindrift. The foam is blown in well-marked streaks along the direction of the wind

Twigs broken from trees. Cars veer on road.

Severe Gale

High waves. Dense streaks of foam along the direction of the wind. Crests of waves begin to topple, tumble and roll over. Spray may affect visibility

Larger branches break off trees, and some small trees blow over. Construction/temporary signs and barricades blow over. Damage to circus tents and canopies.

Storm

Very high waves with long over-hanging crests. The resulting foam, in great patches, is blown in dense white streaks along the direction of the wind. On the whole the surface of the sea takes on a white appearance. The 'tumbling' of the sea becomes heavy and shock-like. Visibility affected

Trees are broken off or uprooted, saplings bent and deformed, poorly attached asphalt shingles and shingles in poor condition peel off roofs.

Violent Storm

Exceptionally high waves (small and medium-size ships might disappear behind the waves). The sea is completely covered with long white patches of foam flying along the direction of the wind. Everywhere the edges of the wave crests are blown into froth. Visibility affected

Widespread vegetation damage. More damage to most roofing surfaces, asphalt tiles that have curled up and/or fractured due to age may break away completely.

Hurricane

The air is filled with foam and spray. Sea completely white with driving spray; visibility very seriously affected

Considerable and widespread damage to vegetation, a few windows broken, structural damage to mobile homes and poorly constructed sheds and barns. Debris may be hurled about.
For More Details about Wind Speed Click Here
For More Details about Wind Direction Click Here
For More Details about Beaufort scale Click Here
 

Sunday, May 1, 2016

Know Your PAN Card

Dear Readers,
 
Wish You a Happy May Day- 2016
 
PAN card is one of the important identity card used for identification of person, company, firm and etc., It is required in construction industry during screening process for workmen and company. How to read PAN Card, Each letter and number is having some identification. Let us see about PAN card.
 
 
PAN is a 10 digit alpha numeric number, where the first 5 characters are letters, the next 4 numbers and the last one is a letter again. These 10 characters can be divided in to five parts as can be seen above. The meaning of each number has been explained further.
1. First three characters are alphabetic series running from AAA to ZZZ
2. Fourth character of PAN represents the status of the PAN holder.
     • C — Company
     • P — Person
     • H — HUF(Hindu Undivided Family)
     • F — Firm
     • A — Association of Persons (AOP)
     • T — AOP (Trust)
     • B — Body of Individuals (BOI)
     • L — Local Authority
     • J — Artificial Juridical Person
     • G — Government
3. Fifth character represents first character of the PAN holder’s last name/surname.
4. Next four characters are sequential number running from 0001 to 9999.
5. Last character in the PAN is an alphabetic check digit.
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Abbreviations (16) Acre (2) ANSI (1) Anti friction bearing (2) Apothecaries Mass (1) Avoirdupois Mass (1) AWG (4) AWS (1) BCR 295 (2) Beam (18) Bearings (5) Blasting & Painting (3) Blogoversary (2) Bolt (4) CAR A/C (1) Cartoon (2) Cent (2) CHANNEL (7) Chequered Plate (1) Chinese (2) Civil (2) Classification (1) Cleaning (2) Cold Rolled Steel (2) Column Section (1) Computer (1) Concrete (1) Construction Industry (4) Conversion Table (2) Crane Rail (2) Density (1) Drill bit (1) Drill gauge (1) Drilling (1) EHS (1) Ellipcon Steel (1) Elliptical Hollow Section (1) EN 10083-3 (1) EN 10219 (1) Engineer Day (5) Engineering Miracle (2) European Steel (3) Fibre Rope (3) Fire (1) FLAT (1) floating crane (1) Flood (1) GAUGE (9) General (20) Greetings (4) H-beam (4) Handrail (1) Heavy Weight Beam (1) Helmet (1) HEXAGOAN (1) Hollow Rectangle (3) Hollow Square (5) Hollow Steel (10) Hot rolled Steel (25) HSS (9) I-Beam (2) Information (5) Informations (4) Introduce (4) IPE (3) IS 1173 (5) IS 1786 (1) IS 3443 (2) IS 4923 (2) IS 808 (15) ISA (2) ISCR (1) ISHB (3) ISJB (4) ISJC (2) ISLB (3) ISLC (2) ISMB (4) ISMC (2) ISMCP (1) ISNT (2) ISSC (2) ISWB (3) JIS G3466 (1) Junior Beam (2) Junior Channel (3) Labour Law (2) Land Measurement (2) Light Beam (1) Light Channel (3) LPG Cylinder (1) Mass (2) Measurement (3) Metals (4) Mile Stone (2) Music Wire (4) MWG (6) Numbers (3) OCTOGAN (1) Painting (3) Parallel Flange Channel (1) PFC (1) PIPE (1) Plastics (2) PPE (1) Precautions (2) Rain (1) Rebar (1) Reinforcement Rod (1) Reinforcemnt Steel (1) Reo (1) Rigging (7) River on River (1) Rope (6) ROUND (1) Safety (9) Scale (1) Self Explanatory (4) SEP (4) Short cut key (1) Sling (1) Slit Tee (1) Specific Gravity (3) SQUARE (1) Steel (17) Steel Beam (6) Steel Section (6) Steel Section Type (5) Structural Steel (51) Surface Preparation (3) SWG (4) SWL (1) Technical (5) Tee Section (5) Thanks (6) Tools & Tackles (2) Torque (5) Troy Mass (1) TUBE (1) Turnbuckle (1) UB (2) UC (2) Unit of Mass (1) UNIT WEIGHT (44) Universal Beam (1) universal Column (2) Water (2) Weight (8) Welding (3) Wide Flange Beam (2) Wind (6) Wind Speed (4) Wire Rope (2) Wishes (11) WWD (1)

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