Page 302 - Mechanical Engineer's Data Handbook

290 MECHANICAL ENGINEER’S DATA HANDBOOK
8. I .2 Abbreviations for technical terms

Term Abb. Term Abb.
Absolute abs. High tension h.t.
Alternating current a.c. High voltage h.v.
Aqueous aq. Horse power h.p.
Atomic number at. no. Indicated mean effective pressure i.m.e.p.
Atomic weight at. wt. Infra-red i.r.
Audio frequency a.f. Intermediate frequency i.f.
Boiling point b.p. Internal combustion i.c., IC
Bottom dead centre b.d.c., BDC Internal combustion engine i.c.e.
Brake mean effective pressure b.m.e.p. Kinetic energy k.e.
Calculated calc. Lower calorific value I.C.V., LCV
Calorific value C.V., cv Low pressure 1.p.
Cathode-ray oscilloscope c.r.0. Low tension 1.t.
Cathode-ray tube c.r.t. Low voltage I.V.
Centre of gravity c.g. Magnetomotive force m.m.f.
Compare cf. Maximum max.
Computer-aided design CAD Mean effective pressure m.e.p.
Computer-aided manufacture CAM Melting point m.p.
Concentrated conc. Minimum min.
Constant const. Moment mom.
Corrected corr. Numerical control n.c.
Critical crit. Pitch circle diameter p.c.d.
Cross-sectional area c.s.a. Potential difference p.d.
Decomposition decomp. Potential energy p.e.
Degree deg. Pressure press.
Diameter dia. Proof stress ps.
Differential coefficient d.c. Radian rad.
Dilute dil . Radio frequency r.f.
Direct current d.c. Radius rad.
Dry flue gas d.f.g. Relative density r.d.
Elastic limit e.1. Relative humidity r.h.
Electromotive force e.m.f. Root mean square r.m.s.
Equation eqn. Specific spec.
Equivalent equiv. Specific gravity s.g.
Example ex. Standard temperature and pressure s.t.p.
Experiment(a1) expt. Strain energy s.e.
Freezing point f.p. Temperature temp.
Frequency freq. Tensile strength ts., TS
Higher calorific value h.c.v., HCV Thermocouple tic
High frequency h.f. Top dead centre t.d.c., TDC
High pressure h.p. Ultraviolet U.V.
High speed steel h.s.s. Ultra-high frequency u.h.f.
High tensile h.t. Very high frequency v.h.f.
Yield stress ys., YS