Four stroke engine
A four-stroke engine is a type of internal combustion engine that completes four distinct processes—intake, compression, power, and exhaust—during two crankshaft revolutions. Here’s a brief overview of how a four-stroke…
Which is the killer current or voltage?
Answer: According to the sources I found, current kills, not voltage. But voltage is must to drive the current. I.e. Amperes are responsible for electrocution, Not the Volts¹. However, electric…
Two-Stroke Engine Working Principle
The two-stroke engine works in two strokes which are as follows: Upstroke: During the upstroke, the piston compresses the air-fuel mixture into the upper part of the piston chamber where…
What’s the minimum distance between an MV cable (13.8kV) and a fiber optic cable?
What’s the minimum distance between an MV cable (13.8kV) and a fiber optic cable? The minimum distance between an MV cable (13.8kV) and a fiber optic cable varies depending on…
Which wire can carry a higher current?
Answer: Standard wire Stranded coz more wires in parallel strapped together carry more current but also has more heat
What’s the difference between Amps, Watts and Volts?
Amps, volts, and watts are three basic concepts in electrical engineering. They are used to describe the flow of electricity through a circuit and the amount of power consumed by…
What is NO and NC on a contactor?
-> Answer: NO and NC are abbreviations for Normally Open and Normally Closed respectively. They are used to describe the state of the contacts on a contactor when the coil…
Electric Motors and control Systems [Book]
Contents Chapter 1 Safety in the Workplace Chapter 2 Understanding Electrical Drawings Chapter 3 Motor Transformers and Distribution Systems Chapter 4 Motor Control Devices Chapter 5 Electric Motors Chapter 6…
Planetary gear
What is a planetary gear? A planetary gear set consists of two gears mounted so that one gear revolves around the center of the other. A carrier connects the centers…
Why are DC motors used in elevators?
DC motors are used in elevators because they usually have higher starting torque than AC motors. This is especially important for high-speed elevators. DC motors when series connected (the armature…