1. 3- phase transformer combinations which cannot be operated in parallel are :





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MCQ-> On the basis of the information given in the following case. Tina a blast furnace expert, who works as a technology trouble-shooter stays in Jamshedpur. She has got an important assignment in Delhi, which requires six hours to complete. The work is so critical that she has to start working the moment she reaches the client’s premises. She is considering various options for her onward and return journey between Jamshedpur to Delhi.A quick search revealed that ticket from Jamshedpur to Delhi is available in two trains. Trains 12801 and 12443 depart from Jamshedpur station at 06:45 hrs and 15.55 hrs and reach Delhi next day at 04:50 hrs and 10:35 hrs respectively. Trains 12444 and 12802 start from Delhi at 17:20 hrs and 22:20 hrs and reach Jamshedpur next day at 10:35 hrs and 20:05 hrs respectively. Another option is to reach Ranchi by a three hour road trip and take a flight to Delhi from Ranchi. The distance between Ranchi and Delhi is covered in 105 minutes both-ways by any of the scheduled flights. Air India operates two flights, AI 9810 and AI 810, which depart Ranchi at 8:00 hrs and 15:25 hrs respectively. Flight number IT-3348 operated by Kingfisher Airlines departs Ranchi at 19:20 hrs. Return flights operated by Air India, AI 9809 and AI 809, depart Delhi at 5:50 hrs and 11:00 hrs respectively. Flight number IT-3347 operated by Kingfisher Airlines departs Delhi at 17:10 hrs.From Tina’s home Jamshedpur railway station is five minutes drive, and her destination at Delhi is 90 minutes and 30 minutes drive from airport and railway station respectively. One has to reach the airport at least one hour before the scheduled departure to complete the boarding procedure. At every railway station she loses five minutes in navigating through the crowd.If Tina wants to minimize the total time out of Jamshedpur, the best option for her, from the options given below, is:
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MCQ-> In each question below, a group of digits/symbols is given, followed by four combinations of letters numbered (1), (2), (3), and (4). You have to find out which of the combinations (1), (2), (3) and (4) correctly represents the group of digits/symbols based on the following coding system and the conditions those follow and mark the number of that combination as your answer. If none of the four combinations correctly represents the group of digits/symbols, mark (5) i.e.,’None of these’ as the answer Digit/Symbol 5 9 @ © 3 8 1 $ % 4 2 6 * 7 $$\delta$$ # Letter Code B E P A K D F H Q I R J U M V T Conditions (a) If the first unit in the group is an even digit and the last unit is a symbol, both these are to be coded as the code for the symbol. (b) If the first unit in the group is an odd digit and the last unit is an even digit, their codes are to the unchanged. (c) If both the first and the last units in the group are symbols, both these are to be coded as ‘X’.@91$26
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MCQ-> In each question below is given a group of letters followed by four combinations of digits/symbols numbered a,b,c and d You have to find out which of the combinations correctly represents the group of letters based on the coding system and the conditions given below and mark the number of that combination as your answer If none of the combinations correctly represents the group of letters mark e, i,e None of these as your answer Letters P M A E J K D R W H I U T F Digits/symbols 4 $ 1 2 3 # 5 @ © 6 % $$\delta$$ 7 9 Conditions: (i)If the first letter is a consonant and the last letter is a vowel the codes of both these are to be interchanged (ii)If both the first and the last letter are consonants both these are to be coded as per the code of the last letter (iii)If the first letter is vowel and the last letter is a consonant both these are to be coded as ‘*’. Note All the remaining letters are to be coded as per their original codes.ERWHKA
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