Important Mechanical Engineering Short Forms and Abbreviations

Published: 16 Dec 2025

In this article, we will discuss Important mechanical engineering short forms and abbreviations. These short forms are widely used in engines, vehicles, machines, and workshops. Learning them helps students and professionals understand technical terms quickly.

Mechanical Engineering Short Forms and Terminolgies

What is KPL?
Full Form of KPL: Kilometer Per Liter
KPL shows fuel efficiency. It tells how many kilometers a vehicle can travel using one liter of fuel.

What is CVTI?
Full Form of CVTI: Continuously Variable Transmission with Intelligence
CVTI allows smooth gear changes. It helps improve fuel efficiency and driving comfort.

What is IHP?
Full Form of IHP: Indicated Horse Power
IHP is the power produced inside the engine cylinder before losses.

What is MAP?
Full Form of MAP: Manifold Absolute Pressure
MAP measures air pressure inside the intake manifold. It helps control fuel supply.

What is HRC?
Full Form of HRC: Rockwell Hardness Scale C
HRC is used to measure the hardness of hard metals like steel.

What is FHP?
Full Form of FHP: Frictional Horse Power
FHP is the power lost due to friction inside the engine.

What is VTVT?
Full Form of VTVT: Variable Timing Valve Technology
VTVT adjusts valve timing. It improves engine efficiency and performance.

What is EBD?
Full Form of EBD: Electronic Brakeforce Distribution
EBD controls braking force on each wheel. It improves vehicle safety.

What is ABS?
Full Form of ABS: Anti-lock Braking System
ABS prevents wheel locking during sudden braking. It helps maintain steering control.

What is RPM?
Full Form of RPM: Revolutions Per Minute
RPM shows how fast an engine or shaft is rotating.

What is SOHC?
Full Form of SOHC: Single Overhead Camshaft
SOHC uses one camshaft to control engine valves.

What is CI Engine?
Full Form of CI Engine: Compression Ignition Engine
A CI engine runs on diesel fuel. Ignition happens due to high compression.

What is PRV?
Full Form of PRV: Pressure Relief Valve
PRV releases excess pressure to protect machines and systems.

What is HCV?
Full Form of HCV: Heavy Commercial Vehicle
HCV includes large vehicles like trucks and buses.

What is BCD?
Full Form of BCD: Bolt Circle Diameter
BCD is the diameter of the circle passing through bolt centers.

What is IMEP?
Full Form of IMEP: Indicated Mean Effective Pressure
IMEP shows engine performance by relating pressure to power output.

What is DTSI?
Full Form of DTSI: Digital Twin Spark Ignition
DTSI uses two spark plugs. It improves combustion efficiency.

What is SAE?
Full Form of SAE: Society of Automotive Engineers
SAE develops engineering standards and supports professionals.

What is MPFI?
Full Form of MPFI: Multi Point Fuel Injection
MPFI injects fuel into each cylinder. It improves mileage and performance.

What is OHV?
Full Form of OHV: Overhead Valve
OHV places valves above the cylinder head for better engine control.

What is PDI?
Full Form of PDI: Pump Düse Injection
PDI is a diesel fuel injection system that provides very high pressure.

What is ASFS?
Full Form of ASFS: Air Suspension with Four Sensors
ASFS adjusts vehicle height automatically. It improves ride comfort.

What is EFI?
Full Form of EFI: Electronic Fuel Injection
EFI uses sensors and electronics to control fuel flow accurately.

What is SFI?
Full Form of SFI: Sequential Fuel Injection
SFI injects fuel in a specific order. It improves throttle response.

What is CC?
Full Form of CC: Cubic Centimeter
CC shows engine capacity or cylinder volume.

What is VMC?
Full Form of VMC: Vertical Machining Center
VMC is used for machining operations like milling and drilling.

What is CNC?
Full Form of CNC: Computer Numerical Control
CNC uses computers to control machines. It improves accuracy and productivity.

What is BHP?
Full Form of BHP: Brake Horse Power
BHP is the usable power of an engine measured at the shaft.

What is ECU?
Full Form of ECU: Engine Control Unit
ECU controls engine operations. It acts as the engine’s brain.

What is SFC?
Full Form of SFC: Specific Fuel Consumption
SFC shows how much fuel an engine uses to produce power.

What is TDI?
Full Form of TDI: Turbocharged Direct Injection
TDI uses a turbocharger to increase engine power and efficiency.

What is LCV?
Full Form of LCV: Light Commercial Vehicle
LCV includes small vehicles like vans and pickup trucks.

What is VVT?
Full Form of VVT: Variable Valve Timing
VVT changes valve timing to improve engine performance.

What is TDC?
Full Form of TDC: Top Dead Center
TDC is the point where the piston reaches its highest position inside the cylinder.

What is BDC?
Full Form of BDC: Bottom Dead Center
BDC is the point where the piston reaches its lowest position inside the cylinder.

What is NDT?
Full Form of NDT: Non-Destructive Testing
NDT checks material defects without damaging the component.

What is TF?
Full Form of TF: Tractive Force
TF is the force that moves a vehicle forward.

What is FOS?
Full Form of FOS: Factor of Safety
FOS ensures that designs are safe and reliable.

What is TIG?
Full Form of TIG: Tungsten Inert Gas Welding
TIG welding produces clean and strong welds.

What is GTAW?
Full Form of GTAW: Gas Tungsten Arc Welding
GTAW is the technical name for TIG welding.

Conclusion

In conclusion, this article covered Important mechanical engineering short forms and abbreviations in detail. We hope you find something helpful and share it with your friends.