1. The welding process used to join the ends of two pipes of uniform cross-section, is





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MCQ->Students from four sections of a class accompanied by respective class teachers planned to go for a field trip. There were nineteen people in all. However, on the scheduled day one of the four teachers and a few students could not join the rest. Given below are some statements about the group of people who ultimately left for the trip. I: Section A had the largest contingent. Il: Section B had fewer students than Section A. Ill: Section C's contingent was smaller than Section B. IV: Section D had the smallest contingent. V: The product of the number of student from each section is a multiple of 10. VI: The number of students from Section C is more than 2. VIl. The product of the number of students from each section is a multiple of 24. VIll. The largest contingent has more than 4 students. IX: Each section contributed different number of students The statements that taken together can give us the exact number of students from each section:....
MCQ->The simplest method of welding two pieces of metal together is known as pressure welding.The ends of a metal are heated to a white heat-for iron,the welding temperature should be about 1300C-in a flame.At this temperature the metal becomes plastic.The ends are pressed or hammered together,and the joint is smoothed off.Care must be taken to ensure that surfaces are thoroughly clean first,for dirt will weaken the weld.Moreover,the heating of iron or steel to a high temperature cause oxidation,and a film of oxide is added to the heated surfaces.For this reason,flux is applied to the heated metal.At welding heat,flux melts and the oxide particles are dissolved in it together with any other impurities which may be present.The metal surfaces are pressed together,and the flux is squeezed out from the center of the weld.A number of different types of weld may be used,but for fairly thick bars of metals,a vee-shaped belt should be normally employed.It is rather stronger than ordinary butt weld. The simplest way of welding two pieces of metal together is....
MCQ-> Read the data given below and answer the questions based on it. There were 3 sections namely A, B, and C in a test. Out of three sections, 33 students passed in Section A. 34 students passed in Section B and 32 passed in Section C. 10 students passed in Section A and Section B. 9 passed in Section B and Section C, 8 passed in Section A and Section C. The number of students who passed each section alone was equal and was 21 for each section.The ratio of the number of students passed in one or more of the sections to the number of students who passed in Section 7 A alone is:
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MCQ->The welding process used to join the ends of two pipes of uniform cross-section, is....
MCQ-> Directions for the following four questions: Each question is followed by two statements A and B. Indicate your responses based on data sufficiencyThe average weight of a class of 100 students is 45 kg. The class consists of two sections, I and II, each with 50 students. The average weight, $$W_I$$ , of Section I is smaller than the average weight, $$W_{II}$$ , of Section II. If the heaviest student, say Deepak, of Section II is moved to Section I, and the lightest student, say Poonam, of Section I is moved to Section II, then the average weights of the two sections are switched, i.e., the average weight of Section I becomes $$W_{II}$$ and that of Section II becomes $$W_I$$ . What is the weight of Poonam?A: $$W_{II} - W_I = 1.0 $$B: Moving Deepak from Section II to I (without any move from I to II) makes the average weights of the two sections equal.
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