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 […]
What is the difference between diametral pitch and pitch diameter?
How is electrical work measured?
What is the principle construction and working of electric motor?
What is the principle construction and working of electric motor? Hint:Electric motor uses the principle of magnetic force on a current carrying conductor. The direction of force depends on the direction of current flow and magnetic field. However, we can fix the magnetic field and create torque on a loop depending on the current flow. […]
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 […]
What happens during the combustion stroke?
What happens during the combustion stroke? At the beginning of the power stroke, the electrical contact is opened. The sudden opening of the contact produces a spark in the combustion chamber which ignites the fuel/air mixture. Rapid combustion of the fuel releases heat, and produces exhaust gases in the combustion chamber. During which stroke does […]