lab 4 ee97

Please choose the correct answer for question number 2. EXPLAIN BRIEFLY why it is the correct answer. Thanks!

The protection against direct lightning strokes and high voltage steep waves is provided by a. Earthing of neutral b. Lightning arresters and ground wires c. Lightning arresters d. Ground wires

(c) Sketch a complete flow chart of digital clock circuit by using the terms listed in Figure Q3(c). Display on LCD Sec. Display Min. Display Hour Display & Alarm Figure Q3(c)

Kindly answer all these. Thanks!

9. When making a high energy measurement: a. Attach the meter to the energized line first, then to ground. b. Attach the meter to ground first, then to the energized line. c. Attach both meter leads concurrently. d. Remove power completely, attach the meter, then restore power.

Marked out of 1.50 P Flag question 13. i) The data for a wind turbine is given below: Wind speed = 14 meters/sec, Length of blade = 10 meter. Choose the correct statement for this wind turbine. a. The input wind power to the turbine is 258 KW b. The input wind power to the turbine is 51.7KW c. The input wind power to the turbine is 25.8KW d. The input wind power to the turbine is 517KW 13. ii) Refer to the above wind turbine choose the correct statement a. The wind rotor swept area is 40square meters. b. The wind rotor swept area is 62.4 square meters. c. The wind rotor swept area is 314 square meters. d. The wind rotor swept area is 31.4 square meters. O O O O

Why PMMC Voltmeters can not be used to measure higher voltages directly? a. because the size of the coils will raise b. because the coils will not be present at all c. because of the lesser current ratings. d. because of the lesser size problems

Don’t copy others work.  Here is only one question.  Don't say multiple question.  Sub: Optoelectronic  Dept:EEE

Answer all the following questions

Please solve question no.6 and show a clear and readable solution. Choose the letter of the correct answer. Thanks!!!

3) 94 select the proper answer for the following: 1) The main processes that have the responsibility of arc initiation in the switching of the high voltage power system are: a) the field and thermal emissions b) the deionization of the arc path c) the photoionization and magnetic field emission 2) The dead tank term is used with: a) Bulk oil circuit breaker b) Minimum oil circuit breaker c) Air blast circuit breaker 3) The errors in the PTs can be minimized by: a) By providing a suitable turn ratio b) By increasing the winding resistance and reactance 2

b) Draw a diagram of a variable speed wind energy system and explain its properties.

As an electrical and electronic engineer, your manager has asked you to write a report for the attention of new employees, listing and describing the operation of safety devices that are commonly found offices and other industrial situations. The report should include all of the details in the task below.     Task   For the following application, list two electrical safety devices that can be used, and describe their operation:A Star delta starting induction motors

With the aid of well labeled diagrams, explain the principle of operation of: a. a pyranometer. b. a wind turbine, from resource to electrical power

2.a. Four electricians are discussing the installation of a luminaire in a clothes closet. Electrician A says thatbecause the clothes-hanging rod is located five inches from the ceiling, the light fixture that's to be mounteddirectly over the rod must be recessed. Electrician B says that a surface-mounted incandescent fixture mustbe placed at least six inches from the storage area. Electrician C says that a surface-mounted incandescentfixture must be placed at least 12 inches away from the storage space. Electrician D says that a surfacemounted incandescent fixture must be placed at least nine inches away from the storage space. Which ofthe following statements is correct?A. Electrician C is correct.B. Electrician A is correct.C. Electrician B is correct.D. Electrician D is correct. 2.b. Four electricians are discussing NEC requirements for common appliances. Electrician A says that new,cord-and-plug, single-phase room A/C units must have factory-installed LCDI or AFCI…

Describe and explain the function of these laboratory instruments: (be Articulate) a. Oscilloscope b. Function Generator c. Digital Multimeter

Explain the breakdown phenomena with respect to influence of nearby earthed objects, humidity and dust particles ​  Explain in short and brief explanation which is easy to understand and learn

From the picture of panel  name plate, explain each and every parameter displayed in it in a brief manner.

The system having ±0.5% of F.S.D if the full scale deflection is 50 units, then accuracy is _____ a. ±0.25 b. ±1 c. ±0 d. ±0.5

A 3 phase fully controlled rectifier has a 3 phase line to line supply voltage of 410 V rms at 50 Hz for 10 ohm and 1.5 H load. If the firing angle  = 50, then the average output voltage is ______________________.    Answer

List the three major causes of laser accidents

Q1 Explain why it is important to have the oscilloscope switched to 'DC' when viewing eye patterns. Explain the meaning, and possible causes of, 'baseline wander'.

parte A • Develop and explain the electrical schematic for the excitation coil in series.• Develop and explain the electrical schematic for the excitation coil in parallel.• Mention or cite examples about what use or application these 2 settings are used for.

Discuss the types of oil circuit breakers. Please write more answer

2. Explain the following sensors with neat diagram. (construction, operation and applications) a) Load cell b) Turbine meter

Choose the correct answer and show your solution. *Kindly provide a COMPLETE and CLEAR solution* (Answer should be typewritten) *Please answer it ASAP if you can

question 1

subject : Electrical engineering

Centennial College - School of Engineering Technology - Toronto ELECTRONICS SHOP PRACTICES CHAPTER 7: SOLDERING TECHNIQUES 7,5 QUESTIONS 1. Which tools will you need for soldering? 2. What type of solder do we call the Eutectic Solder? 3. If the temperature is too high, the is bellow required, the solder joint will appear cold and silvery and will be of the contact may occur and circuit will not work. If the 4. A long and sharp will be of little use when soldering wires or 5. The iron should have a tip to prevent and should have a wattage rating of to Watts. 6. When soldering, apply heat solder will to both, the component lead and much more readily over the copper pad so that the 7. Keep the soldering iron tip and working surfaces wipe only before using and immediately. 8. Do not solder from a heated tip before off the iron. alternate applying the surface. 9. If tips become and wiping to being used. 10. Periodically. the tip from your tool and with a suitable cleaner for your skills.…

Enumerate devices that use electromagnetic induction to operate.