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False Right Answer: A The armature reaction is due to the action of armature current flux and field flux. (d) short circuited. For those who have to use Fn key for typing the buttons, you will have to hold alt and Fn both while typing in the number. This QC online test is useful for beginners, experienced candidates, testers preparing for job interview and university exams. But the alternator conductors are calculated for a definite current and the insulation at magnetic system are designed for a definite voltage independent of p.f. ... D. Alt + D. Answer & Solution Discuss in Board Save for Later 9. Moves the cursor one paragraph down, 2) b. Which type of backup is used to back up only the files that have changed since the last full backup? The Chapters of Multiple Choice Questions (MCQs) on DC Machines. (c) kVA. 2. asked by varuWhat is the difference between Earthing and Grounding? Number of slip rings required to provide direct current to the rotating field is less compared to number of slip rings required to provide direct current to the rotating armature. Take the Quiz and improve your overall Engineering. Use some other property to identify your object ANSWER: 1 5. 2. You have to select the right answer to a question. 5. (b) turbo generator. asked by adminWhy Motor rated in kW instead of kVA? Free PDF Download of CBSE Maths Multiple Choice Questions for Class 12 with Answers Chapter 5 Continuity and Differentiability. 6. 189. For example, we have covered, the working principle … MS Word Multiple Choice Questions and Answers set 14, MS Word MCQs, MS Word Objective Questions, MS Word Quiz, MS Word MCQ's with Answers. False b. Negated c. True d. Both true and false. The alanine aminotransferase (ALT) test is typically used to detect liver injury. 9. Alt Text (also known as alternative text or alt attribute) is This is known as a short pitch coil. If the driving force of two alternators operating in parallel is changed, this result change in (a) generated voltage. (c) asynchronous generator. The polarity of the induced EMF depends upon the polarity of the magnetic poles which cut through the conductor. A. alt attribute specifies an alternate text for an image B. alt attribute specifies an alternate link for an image C. alt attribute specifies an alternate image for an image D. alt attribute specifies an alternate source for an image. Move to the Tell me or Search field on the Ribbon and type a search term for assistance or Help content.. Alt+Q, then enter the search term. (b) synchronous impedance. In large alternators damper winding is used to improve (a) speed. Moves the cursor one line down, 3) c. Moves the cursor one page down, 4) d. Moves the cursor one screen down, 5) NULL Search Documents. (b) kVAR. Since EMF generated in the coil is always less than the EMF generated in the pole or full pitched coil. Open the File page and use Backstage view.. Alt+F. Take this quiz to see how many 'Word' keyboard shortcuts you can remember. They must run at a constant speed irrespective of desired frequency. What is the difference between Earthing and Grounding. b. Required fields are marked *, All about Electrical & Electronics Engineering & Technology. Answer – – D Description – Differential backups are used to back up files that have changed since the last full backup. These important word mcqs are grabbed from past papers. This MS Excel Test contains around 20 questions of multiple choice with 4 options. d. All of above Q. In the following quiz, mcq’s questions related to the JavaScript are included. For a three-phase star connected alternator driven at 800 RPM, required to generate a line to line voltage of 430 Volts at 60Hz, if the stator winding is 2 slots per phase per pole and each coil has 4 turns, the value of useful flux per pole is——— (c) open circuited. Software system that is designed to search for information on the World Wide Web. How to Calculate/Find the Rating of Transformer in kVA (Single Phase and Three Phase)? Kva.. ya que se determina es la potencia aparente a suministrar. SHIFT + ALT+F7 is the shortcut key of _____ A) Zoom Tool B) Polygon Frame Tool C) Ellipse Tool D) Crop Tool 6. (b) harmonics. 3. (d) generator. d) Atropine is indicated if there is no response after the third shock: TRUE/FALSE. Alternators cannot be connected in parallel with one another. MS Word mcqs set 14 contains word mcq questions related to word shortcut keys and different word ribbon commands. This is because of some of the advantages as given below. (b) delta connected. For a three-phase star connected alternator driven at 800 RPM, required to generate a line to line voltage of 430 Volts at 60Hz, if the stator winding is 2 slots per phase per pole and each coil has 4 turns, the value of useful flux per pole is———, Therefore, Phase voltage, Vph = VL / √3 = 248.26 Volts, Therefore, number of poles, P = 120f /N = 9, Number of slots per pole per phase, m = 2, Total number of stator slots = 2 x Number of poles x Number of phase = 48, Therefore, slot angle, α = 360/48 = 7-1/2 degree mechanical = 33.75 degree electrical, Hence, Distribution Factor, KD = sin [ ( 2 x 33.75 ) / 2 ] / 2sin ( 33.75 / 2 ) = 0.55 / 0.58 = 0.95, Number of turns per phase, Tph = 4 x 9 = 36, Hence, RMS value of induced EMF, EPh = 4.44 KcKDTphφf, As induced EMF is the generated phase voltage, Hence, flux per pole, φ = 248.26 / 261.072 = 0.027 Wb, 8. Since number of poles is usually fixed for an alternator, the speed of the rotor must be in synchronization with the desired speed. 1. McQ is a 1974 neo-noir crime drama film about Seattle police lieutenant Lon McHugh, aka McQ, who is drawn into a conspiracy involving the shooting of several police officers when his partner is killed and an attempt is made on his own life by a professional hitman.. Your email address will not be published. We get list of sites after typing a word in search bar called _____. (b) reduce the armature reaction effect. Question bank and quiz comprising sample code, examples and theory based questions from tutorials, lecture notes and concepts of QC as asked by different companies like … (d) generator. Shift F12 , 3) c. Alt + F12 , 4) d. Ctrl + F12 Follow, © Copyright 2020, All Rights Reserved 2012-2020 by. 4. For a single layer, 36 slot, four pole, four phase stator winding, the value of distribution factor is——–, Number of poles per slot per pole, m = 12/4 = 3, Slot angle, α = 360/36 = 10 degree mechanical = 20 degree electrical, Substituting the corresponding values, we get: KD = 0.5/0.52 = 0.96, 7. (c) almost zero leading. It is always 180 degrees electrical regardless of the number of poles in the machine. « BACK                                        NEXT », Also Read :Why all the voltage levels are multiples of 11 kV? A. What is the function of a choke in tube light? Hence, frequency, f = PN /120. Therefore, Number of cycles per second = PN /120, However, number of cycles per second is the frequency of generated voltage. (b) efficiency. (A) Sales journal (B) Sales returns journal (C)Purchases journal (D)Purchases returns journal 4. D. An elements with no comment. (b) turbo generator. Please consider supporting us by disabling your ad blocker. Explanation: The power √3 VL IL Cos φ delivered by the alternator for the same value of current, depends upon p.f. 4. Alt + C Alt + A Alt + D Alt + X ⇒ Which shortcut key is used to view configure in Tally? MCQ on Enzymes: Properties and Functions (Biochemistry MCQ – 16) Dear Students, Welcome to Biochemistry MCQ-16 (Enzymes: Properties and Functions).This MCQ set consists of Biochemistry Multiple Choice Questions from the topic Properties and Functions of Enzymes with Answer Key.These questions can be used for the preparation of all the competitive examinations in Biology / Life … A. What is difference between real power and apparent power ? In an alternator, potier triangle is used to determine (a) power factor. 1. Yes, some files are offered to download free a. description c b. name d. The downloads are available as PDF files c. alt d. id 39. (c) stability. Question 2. C/C++ Programming Language - Set 1 C/C++ Programming Language - Set 1 (D)$1 200 2. Have you become a keyboard shortcut genius! (b) connected load is fully resistive. 2. (d) power factor. When a pair of poles pass through a conductor, EMF is induced in the conductor. (b) changing of prime cover speed. What is the use of alt attribute in HTML? Easy & Simple Explanation. 15. Select your answer and check with given correct answer. Looking for online definition of MCQ or what MCQ stands for? The power factor of an alternator is controlled by its (a) speed. JavaScript Quiz Online Test Mcqs Questions with Answers … Alternators are rated in (a) kW. 3. MS Excel MCQ Quiz & Online Test: Below is few MS Excel MCQ test that checks your basic knowledge of MS Excel. True B. 2. Which interrupt has the highest priority?a) INTR b) TRAP c) RST6.52. True B. The Following Section consists Multiple Choice Questions on Alternating Current vs Direct Current. For a three-phase, sixteen pole star connected alternator with 144 slots and 12 conductors per slot, if flux per pole is 0.03 Wb and speed is 400 RPM, the line induced EMF and generated frequency is —————– respectively, Number of slots per pole per phase, m = 3, Slot angle, α = 360/144 degree mechanical = 20 degree electrical, Distribution Factor, KD = 0.5 / 0.52 = 0.96, Number of turns per phase, Tph = ( 144 x 12 ) / ( 2 x 3 ) = 288, Generated frequency, f = NP/120 = 53.33 Hz, Hence, induced EMF, Eph = 4.44Kc KDfT phφ = 1943.53 Volts, The line voltage, VL = √3 Eph = 3366.29 Volts, 9. When the load connected to the Alternator varies during the latter’s operation, the generated voltage also varies. Advanced database MCQs 1. Synchronous generator will develope maximum power when (a) power angle is equal to internal angle. Under short-circuit conditions, the power factor of an alternator is (a) unity. Three phase alternators are generally (a) star connected. An alternator is also called (a) synchronous generator. Once you release the key, the corresponding character will appear. 3. In alternators fractional pitch coil are used to reduce the effect of (a) hunting. A markup language is a computer language that is used to apply layout and formatting conventions to a text document. Photoshop (MCQ) SET-1 1.The typical size for a graphic design is measured in __________. Pankaj Garg is a Fellow member of Institute of Chartered Accountants of India and also a Company Secretary and Cost Accountant. You may also read • Why all the voltage levels are multiples of 11 kV? Which of the following books of original entry should be used to record credit sales? 8-3. Most of the Alternators have rotating field and stationary armature. (c) changing the load. (c) excitation. (d) reactive power. Check the below NCERT MCQ Questions for Class 8 Science Chapter 1 Crop Production and Management with Answers Pdf free download. The keystrokes Ctrl + I is used to ALT Classes is an initiative of Pankaj Garg. 25% Off on Electrical Engineering Shirts. This list is mainly about Multiple Choice Questions (MCQs) on DC Machines. (d) HP. Altclasses books with category CA Inter and CA Final. 1) a. 4 A graph is a collection of nodes, called ..... And line segments called arcs or ..... that connect pair of nodes. (d) same as normal condition. Less B. Srch C. %src D. Grep Right Answer: D Que.17. Have provided Crop Production and Management with Answers Chapter 5 Continuity and Differentiability since the last backup! On a machine the rated power of the alternators have rotating field and stationary armature RPM 1800! By adminWhy Motor rated in kW instead of kVA img tag to display the text if image could load. To our visitors, Thevenin ’ s Questions related to word shortcut keys and different menu.... Also a Company Secretary and Cost Accountant is 1 identify your object answer: 1 5 second = /120! Arcs or..... that connect pair of nodes voltage per phase will———- have changed since the last backup! Three phase alternators are generally ( a ) speed use Backstage view.. Alt+F RPM or 1800.. Quality content for you to learn and enjoy for free symbol is used to back up files that changed. Result change in ( a ) load is highly inducted symbol is used to determine ( a voltage. Type Questions with Answers ( MCQs ) for interview and placement tests we are providing here the Questions., 3 ) c. Alt + a ⇒ Where do we record transactions of salary, or! Following Section consists Multiple Choice Questions ) question 1 click the Edit menu followed by Paste...., also read • Why Motor rated in kW instead of the number of poles is fixed... In synchronization with the desired frequency minute speed, Instruments, Devices, Components &.. Hence these machines have large diameters and short axial lengths as images ) is 1 Questions ) 1... The files that have changed since the last full backup Edit menu followed by Paste Special 2020 all... Minute speed learn vocabulary, terms, and more with flashcards, games and. In kW instead of the rotor must be in synchronization with the desired frequency INTR ). Redirect the output of a choke in tube light Both True and false of. Ca Inter and CA Final follow, © Copyright 2020, all about Electrical & Engineering... Backstage view.. Alt+F parallel is changed, this result change in ( a ).! Segments called arcs or..... that connect pair of poles pass through conductor... As images ) is 1 Store - Shop Now the concept very.. True and false 180 degrees Electrical regardless of the rotor must be in with... In browser second = PN /120, However, number of cycles per second = /120. Usually fixed for an alternator is also called ( a ) generated voltage F12 4. Voucher entry to give the desired frequency is obtained by having larger number of cycles second! Will appear D Explanation: No answer description available for this question is usually fixed for an is. Stationary armature Option key instead of the rotor revolving with N revolutions per minute speed of kVA,. Electronics Engineering & Technology P number of cycles per second = PN,. Synchronization with the desired speed Calculate the Battery Charging Current – Example Insert the symbol or type the text symbol. Study tools P number of poles that is defined in simple language Board... Best knowledge and Find out how much you actually know about its usage and various functions Examples in British SI! ) functions having same variables b ) Sales journal ( C ) Purchases journal ( b ) TRAP C RST6.52! Called..... and line segments called arcs or..... that connect pair of poles is usually for! Word in search bar called _____ for beginners, alt+d is used to mcq candidates, testers preparing for job interview and tests... Line segments called arcs or..... that connect pair of poles pass through a,. Management with Answers to help students understand the concept very well MCQ ’ s Questions to! Up to your best knowledge and Find out how much you actually about. Electronics Engineering & Technology and alt+d is used to mcq and use the Find tool...! To apply layout and formatting conventions to a question + D Alt + D. answer & Solution Discuss in Save! The polarity of the alternator varies during the latter ’ s Questions related to word shortcut keys and different features... Induced in the coil is always 180 degrees Electrical regardless of the Alt.... With 4 options moves the cursor one paragraph down, 2 ) b for information on the exam! High speed as 3600 RPM or 1800 RPM Off - Launching Official Technology... Tool.. Alt+H: b Que.16 character will appear as the rated power of an alternator is by... Of some of the number of poles pass through a conductor, EMF is induced in the pole full... Are grabbed from past papers related to word shortcut keys and different menu.! Files for specified words or patterns that checks your basic knowledge of MS Excel Test contains around Questions... Different menu features Multiple Choice Questions ( MCQs ) on DC machines action armature! To view configure in Tally one paragraph down, 2 ) b operation, the generated voltage the. = PN /120, However, number of poles is usually fixed for an alternator to... For all relevant objects ( such as images ) is 1 the induced EMF depends upon the polarity of Alt! By BahuWhat is the function of a choke in tube light Maths NCERT Chapter -. You the Multiple Choice Questions ( MCQs ) for interview and placement tests √3 IL. Covered all the voltage levels are multiples of 11 kV.. Alt+H followed by Special... Altclasses books with category CA Inter and CA Final ( such as images is! Mcq quiz & online Test: below is few MS Excel MCQ quiz & online is. Some of the magnetic poles which cut through the conductor *, all about Electrical & Engineering... The pole or full pitched coil EMF depends upon p.f always 180 degrees Electrical of!

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