Page 214 - CITS - ED - Mechanical

ENGINEERING DRAWING - CITS

Draw the detail and assembly drawings on separate A3 drawing paper.

Abbreviations: Most of the blue prints have some abbreviations. The use of abbreviations which help to reduce
drafting time, save the valuable drawing space etc. A selection of the more commonly used ones are given below:

Term Abbreviations/Symbol Term Abbreviations/Symbol
Across Corners A/C Hexagon HEX
Across Flats A/F Horizontal HORZ
Alteration ALT Horse power hp
Ampere A Hour h
Angle (Structural section) L Indian Standard IS
Approved APPD Inspection INSP

Approximately equal to ≈ Inside diameter ID
Assembly Assy Internal INT
Auxiliary AUX Indicated horse power ihp
Beam I Joule J
Brake horse power bhp Kilogram kg
Brinell hardness HB Kilolitre kl
Cast Iron CI Kilometre km
Centimetre Cm Kilometre per hour km/h
Centres CRS Kilogram force kgf
Checked CHD Left hand LH
Chamfered CHAM Litre l
Cheese head CH. HD Litres per minute l/min
Long
LG
Centre line CL, ∉ Material MATL
Centre to centre C to C Machine M/C
Channel ] Manufacturing MFG
Maximum max
Circular pitch CP
Circumference O ce Metre m

Counterbore C' BORE Mechanical MECH
Countersunk CSK Micrometer (0.001 mm) µm
Cylindrical CYL Millimetre mm
Minimum min
Degree °
Miscellaneous MISC
Degree celsius °C
Not to scale NTS
Degree Kelvin K
Number No.
Diameter DIA
Opposite Opp.
Diameter Preceding Dimension φ Outside diameter OD
Dimension DIM
Parallel //
Drawing DRG
Perpendicular ⊥
Figure FIG
Gram g Pitch circle diameter PCD
Ground Level GL Pitch circle PC

201
CITS :Engineering Drawing (Mechanical) - Exercise 9 CITS :Engineering Drawing (Mechanical) - Exercise 9