What is the need for pre emphasis and de-emphasis?

What is the need for pre emphasis and de-emphasis? De-emphasis means attenuating those frequencies by the amount by which they are boosted. However pre-emphasis is done at the transmitter and the de-emphasis is done in the receiver. The purpose is to improve the signal-to-noise ratio for FM reception. What is the use of pre emphasis? […]

What is Aegcp?

What is Aegcp? An AEGCP is a written company procedure that requires periodic testing of all equipment-grounding conductors of cord sets and of those connected to receptacles to ensure no faults will occur. The company must keep records of the continuity and terminal connection tests. How do extension cords cause fires? Extension cords can overheat […]

What is the most embarrassing moment of your life?

What is the most embarrassing moment of your life? 1. Forgetting someone’s name. Oh yeah, I bet you would have been stuck in this situation at least once. This gets incredibly embarrassing when you were their colleague for months and suddenly you don’t remember their name. What are some embarrassing moments? 22 Embarrassing Moments We’ve […]

Can a relation be both reflexive and Irreflexive?

Can a relation be both reflexive and Irreflexive? Notice that the definitions of reflexive and irreflexive relations are not complementary. That is, a relation on a set may be both reflexive and irreflexive or it may be neither. The same is true for the symmetric and antisymmetric properties, as well as the symmetric and asymmetric […]

Why does table fan rotate clockwise?

Why does table fan rotate clockwise? The direction of the rotation helps to cool the house in the summer, or push the hot air down in the winter. Table fans rotate clockwise because that is the direction required to push the air towards you and cool you off. Why does ceiling fan rotate in opposite […]

How is electrical work measured?

How is electrical work measured? So if 1 watt = 1 joule per second, it therefore follows that: 1 Joule of energy = 1 watt over one unit of time, that is: Work equals Power multiplied by Time, (V*I*t joules). So electrical energy (the work done) is obtained by multiplying power by the time in […]

Is a positioning device system is a fall arrest system?

Is a positioning device system is a fall arrest system? A positioning-device system provides support and must stop a free fall within 2 feet; a personal-fall-arrest system provides no support and must limit free-fall distance to 6 feet. What are the three components of a personal fall arrest system? Body harness, Anchor, Lifeline Explanation A […]

Is a carpenter an engineer?

Is a carpenter an engineer? the carpenter works for an company that has a hierarchy of skilled workers. The company has its own internal categories for these workers. Neither is considered an Engineer in the public domain, although their combined skills and experience enable them to solve engineering problems and apply these solutions. Can an […]

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