what the full form of IEC ?

Last Answer : 1. In positive half cycle (0 to Π): The end A of the secondary winding becomes positive and end B negative. This makes diode D1 and D4 forward biased while diode D2 and D3 are reverse biased. These two diodes will ... D2 and D3 when it is conducting is as follows. B - D2 - RL - D3 - A

1 answer

297 views

A transformer operates 24 hours day at full -load. It's full -load efficiency is :

Description : A transformer operates 24 hours day at full -load. It's full -load efficiency is : (A) equal all day efficiency (B) more than all -day efficiency (C) less than all -day efficiency (D) equal to maximum efficiency

Last Answer : A transformer operates 24 hours day at full -load. It's full -load efficiency is : equal all day efficiency

1 answer

116 views

Evaluate the following quantities and express your results in polar form

Description : Evaluate the following quantities and express your results in polar form

Last Answer : Evaluate the following quantities and express your results in polar form

1 answer

231 views

Evaluate the following complex numbers and leave your results in polar form

Description : Evaluate the following complex numbers and leave your results in polar form

Last Answer : Evaluate the following complex numbers and leave your results in polar form

1 answer

254 views

Calculate these complex numbers and express your results in rectangular form

Description : Calculate these complex numbers and express your results in rectangular form

Last Answer : Calculate these complex numbers and express your results in rectangular form

1 answer

8 views

How to Full Court Press

Description : How to Full Court Press

Last Answer : How to Full Court Press In the game of basketball, most coaches preach the importance of defense. One particularly effective defensive strategy employed by bench tacticians is the full court ... , stamina and good teamwork. Master this defensive scheme and score easy transition basket yourselves.

1 answer

558 views

Draw single phase full wave mid-point converter for inductive load. Draw input and output waveforms for it.

Description : Draw single phase full wave mid-point converter for inductive load. Draw input and output waveforms for it.

Last Answer : Circuit Diagram: Waveforms:

1 answer

500 views

State advantages of short pitch winding over full pitch winding in alternators.

Description : State advantages of short pitch winding over full pitch winding in alternators.

Last Answer : Advantages of Short Pitch Winding over Full Pitch Winding in Alternators: 1) Short pitching reduces the amount of copper needed for end connection when compared with full pitched coil. 2) They ... reduced, thereby increasing the efficiency. 4) The power quality of generated emf is improved.

1 answer

312 views

Draw full bridge & half bridge configuration with common cathode.

Description : Draw full bridge & half bridge configuration with common cathode.

Last Answer : Half Bridge Configuration: Full Bridge Configuration:

1 answer

955 views

Give the operation of single phase full wave bridge controlled converter with RL load with a neat diagram. Also draw its waveform.

Description : Give the operation of single phase full wave bridge controlled converter with RL load with a neat diagram. Also draw its waveform.

Last Answer : Single phase fully control bridge converter with RL load: 1. During positive half cycle of input voltage, T1 and T2 are forward biased and during negative half cycle, T3 and T4 are forward biased. Therefore, T1-T2 ... cycle till the firing of next pair of SCRs as shown in the waveform.

1 answer

794 views

A 40 kVA transformer has a core loss of 400 W and a full load copper loss of 800 W. The

Description : A 40 kVA transformer has a core loss of 400 W and a full load copper loss of 800 W. The proportion of full load at maximum efficiency is

Last Answer : A 40 kVA transformer has a core loss of 400 W and a full load copper loss of 800 W. The proportion of full load at maximum efficiency is 0.707

1 answer

898 views

A four -quadrant operation requires two full converters connected in

Description : A four -quadrant operation requires two full converters connected in (1) Series (3) Back to back (2) Parallel (4) Series Cascade

Last Answer : A four-quadrant operation requires two full converters connected in Parallel

1 answer

417 views

The ratio of maximum displacement deviation to full scale deviation of the instrument is called?

Description : The ratio of maximum displacement deviation to full scale deviation of the instrument is called?

Last Answer : The ratio of maximum displacement deviation to full scale deviation of the instrument is called linearity.

1 answer

135 views

In a level compounded D.C. generator, full load terminal voltage is?

Last Answer : In a level compounded D.C. generator, full load terminal voltage is equal to no-load terminal voltage.

1 answer

118 views

In over compounded generator, full load terminal voltage is?

Last Answer : In over compounded generator, full load terminal voltage is more than no load terminal voltage.

1 answer

161 views

If a D.C. shunt motor is working at full load and if shunt field circuit suddenly opens?

Last Answer : If a D.C. shunt motor is working at full load and if shunt field circuit suddenly opens this will make armature to take heavy current, possibly burning it.

1 answer

166 views

For the same H.P. rating and full load speed, following motor has poor starting torque?

Last Answer : For the same H.P. rating and full load speed, following motor has poor starting torque differentially compounded.

1 answer

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Describe the gate circuit for a single phase full converter.

Description : Describe the gate circuit for a single phase full converter.

0 answers

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Why the power factor of semiconverter is better than full converter?

Description : Why the power factor of semiconverter is better than full converter?

Last Answer : Power factor of semiconverter is better than full converter

1 answer

272 views

Explain three phase full wave controller.

Description : Explain three phase full wave controller.

Last Answer : Three phase full wave controller: Three phase full wave controller is also called as the three-phase bidirectional controller. Let the load is star connected so at each phase there are antiparallel connected SCRs. ... conduct at the same time and the third phase will be open.

1 answer

262 views

Explain full bridge converter.

Description : Explain the operation of full bridge converters with their different operating modes. State its advantages and disadvantages.

Last Answer : Full bridge converter: Full bridge converter provides isolation between input and output. Full bridge converter is used for step up or step down the input voltage. Full bridge converter consists of four power semiconductor ... Require filter on both input and output.

1 answer

123 views

single phase full converter

Description : single phase full converter

Last Answer : single phase full converter

1 answer

78 views

Can we create a digital circuit that has as inputs the 3- bit digital words

Description : Can we create a digital circuit that has as inputs the 3- bit digital words [2: 0] A, [2: 0] B and [2: 0] C and its output is equal to |C-A-B| . The circuit of the binary full adder is known.

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Function of IEC

0 answers

71 views

What is the difference between the IEC and the IEEE standards requirement for transient recovery voltage?

Description : What is the difference between the IEC and the IEEE standards requirement for transient recovery voltage?

0 answers

0 views

A copper calorimeter of mass 0.1 kg contains m kg of iec at 4°C. The temperature of calorimeter and content rises from–4°C to –2°C when 0.52 kcal of heat is given. To raise temperature of calorimeter and content by 4°C an additional amount of 41.54 kcal has to be added. C is specific heat of copper. Then m and C are (Latent heat of fusion of ice = 80 k cal kg-1 specific heat of ice = 0.5 kcal kg-1 °C-1) (1) m = 0.5 kg; C = 0.1 kcal kg-1 °C-1 (2) m = 0.5 kg; C = 0.15 kcal kg-1 °C-1 (3) m = 0.4 kg; C = 0.1 kcal kg-1 °C-1 (4) m = 0.4 kg; C = 0.2 kcal kg-1 °C-1

Description : A copper calorimeter of mass 0.1 kg contains m kg of iec at 4°C. The temperature of calorimeter and content rises from-4°C to -2°C when 0.52 kcal of heat is given. To raise temperature of calorimeter and content by 4°C an additional ... 0.1 kcal kg-1 °C-1 (4) m = 0.4 kg; C = 0.2 kcal kg-1 °C-1

0 answers

0 views

Which of the following documents are not required for obtaining an export license? (a) IEC number (b) Letter of credit (c) Registration cum membership certificate (d) Bank account number

Description : Which of the following documents are not required for obtaining an export license? (a) IEC number (b) Letter of credit (c) Registration cum membership certificate (d) Bank account number

0 answers

0 views

IEC Number is issued by:

Description : IEC Number is issued by:

Last Answer : IEC Number is issued by: A. Import Export Licensing authority B. Foreign Minister C. Minister of Commerce and industry. D. Chamber of Commerce.

1 answer

3 views

Cause effect graphing is related to the standard A. BS7799 B. BS 7925/2 C. ISO/IEC 926/1 D. ISO/IEC 2382/1

Description : Cause effect graphing is related to the standard A. BS7799 B. BS 7925/2 C. ISO/IEC 926/1 D. ISO/IEC 2382/1

Last Answer : B. BS 7925/2

2 answers

516 views

The written details for conduct trails to ensure quality control of trail is known as a) GCP. b) SOP. c) IEC. d) ADR.

Description : The written details for conduct trails to ensure quality control of trail is known as a) GCP. b) SOP. c) IEC. d) ADR.

Last Answer : b) SOP.

1 answer

anonymous · Answer 1 · 2017-09-30T01:27:37+0000

Answer :

IEC stands for International Electrotechnical Commission.

answered Sep 30, 2017 by anonymous

what the full form of IEC ?

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