Prior to commencement of work, all shop drawings will be submitted for approval by consultant/client. Shop drawings will show the layout of pipe and cables as well as the section drawings. Only approved shop drawing will be used for installation. All materials to be used will be submitted for Engineer’s approval in forms of Material… Read More »
The electrical energy is almost exclusively generated, transmitted and distributed in the form of alternating current. Therefore, the question of power factor immediately comes into picture. Most of the loads (e.g. induction motors, arc lamps) are inductive in nature and hence have low lagging power factor. Low power factor is highly undesirable as it causes… Read More »
All material used at the project site shall be approved prior to the start of IP Telephony system installation works. Materials and documentation relevant to a particular section of works will be checked by the site/project engineer prior to the commencement of work ensuring that these are of the correct type as reviewed by the… Read More »
Below you can find MCQ’s or multiple choice questions related to solar cell and related topics for engineering students. Correct answers are in red and bold font. 1. a PV cell is also called? a) IR cell b) VU cell c) Solar cell d) All of the above 2. PV effect in solar cell converts… Read More »
What is an amplifier? An amplifier is a device used to increase an input signal’s voltage, current, or power. A weak electrical signal is taken in and converted into a stronger output signal. External power is used to cause this change. There are three main classifications of amplifiers depending on the changes it makes to… Read More »
Lead acid batteries were the first form of rechargeable battery which are still used today. As we learned in history of batteries; lead acid batteries were developed in 1859 by Gaston Plante. This battery type is still used today in many industries, especially popular as car batteries, but also commonly used in photovoltaic systems. Compared… Read More »