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)