Engine and the gearbox

Engine and the brake

Drum and the gearbox

Axle and the gearbox

Speed

Velocity

Acceleration

Power

Heat

Force

Torque

Pressure

Engine's crankshaft

Axle

Piston

Cylinder

(a) Prony brake dynamometer

(b) Rope brake dynamometer

(c) Torsion dynamometer

Both (A) and (B)