19. In electric welding, arc blow can be avoided by a. increasing arc length b. using bare electrodes C. using ac welding machines d. welding away from earth ground connection 20. The space charge in vacuum tubes a. b. C. d. is negatively charged has repelling effect on electrons limits the flow of plate current all of these

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6) Build an Arduino code that has keypad, LCD display. In this code you are required to: (Void Setup and Loop only) 1- Show "Hello Ardunio" blinking on LCD display with delay 1sec when pushing key I from the keypad and the LED is OFF. 2- Make a LED blinking with delay 1sec when pushing key 2 from the keypad and the LCD display is empty 7)An image of 250x250 elements (pixels) what is the memory size of the image if: a)Unit 8 b) Unit 16 c) Black & Whi 8) The game port register is used for two different purposes that are: 1- 2- 9) What is the FPGA device? 10) chose the correct answer for the following: 1- What is a result of connecting two or more switches together? a) The size of the broadcast domain is increased. b) The number of collision domains is reduced. b) The size of the collision domain is increased. c)The number of broadcast domains is increased.

3 For each of the following Boolean expression, do the followings: 3.1 H = AB + B a. 3.2 Draw the electrical schematic diagram using IEC standardized referencing, symbol and terminal numbering. b. Describe the operation of the circuit c. Do the wiring and test the circuit. (record during testing in mp4 format) L = AB + AC + ABC a. Draw the electrical schematic diagram using IEC standardized referencing, symbol and terminal numbering. a. Describe the operation of the circuit b. Do the wiring and test the circuit. (record during testing in mp4 format) 00

. Does ‘a three digit color coding of resistor values’ limit producible resistor value ranges? Why? If you need to increase these range what would be your solution?   **please type it using keyboard NO handwriting**

Can you please further explain how you used the ID equation to find the solution? Thank you

The subject is: Energy Conversion and Storage Please send the answer by typing ONLY. I don't want any handwritten. Also, don't copy-paste from the net, as plagiarism will be counted.     Q-1) Explain any two energy conversion methods in detail with merits and demerits.

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Refer to the National Electrical Code® or the working drawings when necessary. Where applicable, responses should be written in complete sentences. For problems 1 and 2, six luminaires, similar to Style E used in the Commercial Building, are to be installed in a room that is 12 ft x 18 ft (~3.7 m x ~5.5 m) with a 9 ft (2.8 m) floor-to-ceiling height. The spacing ratio for the luminaire is 1:0. 1. The maximum distance that the luminaires can be separated and achieve uniform illuminance is ft ( m). For problems 2-5, two luminaires, 8 ft (2.5 m) and 4 ft (1.2 m) in length with dimensions as shown in Figure 15-7, are to be installed in tandem (end to end). The end of the long luminaire is to be 2 ft (600 mm) from the wall. 2. The center of the outlet box should be roughed in at ft ( m) from the wall. 3. The first support should be installed at the wall. ft ( m) from 4. The second support should be installed at from the wall. ft ( m) 5. The final support should be installed at the wall. ft…