Torque or Turning Force

Define torque as the turning moment of a force
Torque is defined as the rotating moment or turning effect of a force.
We can define torque mathematically as:

Basic terms of mechanical engg. 3

Supercharging:
Actually, power output of engine depends on what amount of air enter into the engine through intake manifold. Amount of entry aiy if increased, then must be engine speed will increased. Amount of air will be increased by increasing inlet air density. The process of increasing inlet air density is supercharging. The device which is used for supercharging is called supercharger.Superchargeris driven by a belt from engine crakshaft. It is installed in intake system.

Basic terms of mechanical engg. 2

Mach Number:
It is the ratio of the velocity of fluid to the velocity of sound.
M=1 ----------------- Sonic flow
M> (1-6) ----------- Super-Sonic flow
M>6 ---------------- Hyper-Sonic flow

Fluid discharge/Fluid flow:Quantity of fluid flowing per second.

(through a section of pipe/ through a section of channel)

Q=AV

where, V= velocity of fluid,A= cross-sectional area of pipe/channel
Note: 1m³ = 1000 L1 cusec = 1 ft³/sec1 ft = 0.3048 m

Basic terms for Mechanical Engineering 1

Torque or Turning Force:
It is the total amount of force which is required to create acceleration on moving substance.

Couple:Two forces those acts on equally,parallely & oppositely on two separate points of same material.