A Vertical Turrent Lathe Machine is a type of Lathe which is vertical and contains a turrent.
A Turrent is a sort of arrangement which holds several tools at a time , these tools perform machining according to the requirement.
This machine can perform turning , facing , drilling e.t.c.
Soldering is a process in which two or more metal items are joined together by melting and flowing a filler metal ( solder ) into the joint , the filler metal having a lower melting point than the adjoining metal.
Soldering differs from welding because it does involve melting of work pieces.
Soldering is the only way to fix components to a circuit.
Air–fuel ratio (AFR) is the mass ratio of air to fuel present in an internal combustion engine. The AFR can also refer to the volume ratio for combustion carried out in industrial furnaces. If exactly enough air is provided to completely burn all of the fuel, the ratio is known as the stoichiometric mixture, often abbreviated to stoich. For precise AFR calculations, the oxygen content of combustion air should be specified because of possible dilution by ambient water vapor, or enrichment by oxygen additions. The AFR is an important measure for anti-pollution and performance-tuning reasons. The lower the AFR, the “richer” the mixture
The active suspension and adaptive suspension/semi-active suspension are types of automotive suspensions that controls the vertical movement of the wheels with an on-board system, rather than in passive suspensions where the movement is being determined entirely by the road surface
Active suspensions can be generally divided into two main classes: pure active suspensions and adaptive/semi-active suspensions. While adaptive suspensions only vary shock absorber firmness to match changing road or dynamic conditions, active suspensions uses some type of actuator to literally raise and lower the chassis independently at each wheel.