I have two jugs of 11 liter and 6 liter. Each half of the wire we burned should have taken 30 minutes to burn, regardless of uniformity. When using a 3-wire RTD probe in process, connected to an RTD transmitter, make sure you make good contacts to the transmitter screws for all 3 wires. Use the fixed anvil of the micrometer to hold them in place. What is the total charge flowing in the circuit. The wires burn non-uniformly. Interview question for Software Engineer in Ghaziabad.How to Measure 45 minutes using two identical wires? … 8. When using a RTD reference probe in calibration, make sure you always use a 4-wire connection. Answer: Use a laser pointer as a light source and measure the diffraction angle. 56 Photos. A guy has two wires of varying thickness, which each burns in 60 minutes. 21, May 16. How will you use these two candles to measure forty-five minutes? 14, Jan 19. It has to do something with burning both wires together. View Jobs at EXL Service. Burn one of our split wires from both ends, and this should take 15 minutes as we're burning it from both ends. At first, you might think this is impossible to solve but the fact that this puzzle was asked means that there is definitely an answer. No measurement can be perfect, and understanding the limitations on the precision in your measurements helps to ensure that you don’t draw unwarranted conclusions on the basis of them. How do we measure forty-five minutes using two identical wires, each. You can measure strain using several methods, but the most common is with a strain gage. Step 1 Remove the insulation from electrical wiring and speaker wires before measuring diameters. It will take exactly half the original time, i.e. For example, black and red wires typically are used for current-carrying or "hot" connections, and white wires usually are grounded "neutral" conductors. Puzzle 34 | (Prisoner and Policeman Puzzle) 02, Dec 15 . I was successful on my second try. How do we measure forty-five minutes using two identical wires, each of which takes an hour to burn? 2.6k Reviews. In general, the Number of Wattmeters Required = the Number of Wires – 1. Puzzle 1 | (How to Measure 45 minutes using two identical wires? Green-insulated wires and bare copper wires are used for grounding wires. Power is measured using a single wattmeter. 4. 27, Feb 15. 45 minutes – Stick 2 will be burnt out. How long does this take? 0 minutes – Light stick 1 on both sides and stick 2 on one side. In a single-phase system there are just two wires. Puzzle 4 | (Pay an employee using a gold rod of 7 units ?) Puzzle 1 | (How to Measure 45 minutes using two identical wires?) How can the guy measure 45 mins using these two wires ? So, for example, the two halves of wire might burn in 10 minutes and 50 minutes respectively. use the following search parameters to narrow your results: subreddit:subreddit find submissions in "subreddit" author:username find submissions by "username" site:example.com find submissions from "example.com" url:text search for "text" in url selftext:text search for "text" in self post contents self:yes (or self:no) include (or exclude) self posts nsfw:yes (or nsfw:no) include … We have matchsticks with us. The most widely used strain gage is the bonded metallic strain gage. Interview Question. 30 minutes – Stick 1 will be burnt out. Use measuring tools based on the metals composing the wires to find the right gauge for your project. Light the other end of stick 2. Puzzle 31 | (Minimum cut Puzzle) 23, Nov 15. Because 4-wire measurements typically employ test currents well above those needed for two-wire testing, a secondary advantage comes through the use of a high-current stress test for wiring by driving a current of 1 A or more through each conductor, and the ability to set a dwell time from 100 ms to many minutes –– observing a slowly-increasing resistance during a long dwell … 6. It doesn’t matter at what point the wire has finished burning, we are just concerned about the time. Generally, hand-held, cable length measurement instruments use capacitance or time domain reflectometry (TDR) technology. 621 Inter­views. Remember, from the initial explanation, the trick was to burn both wires together. 562 Jobs. The wires burn non-uniformly. Puzzle 1 | (How to Measure 45 minutes using two identical wires?) 30 minutes – Stick 1 will be burnt out. 2.5k Salaries. How can he measure 45 mins using only these two ropes. The good news is that there are many simple rules you can … Now on the top of the part, slip the third wire into a V under the movable anvil of the micrometer. acknowledge that you have read and understood our, GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, Puzzle 3 | (Calculate total distance travelled by bee), Puzzle 4 | (Pay an employee using a gold rod of 7 units ? Normally you do 2-wire measurements--you use two test points per measurement. 0 minutes – Light stick 1 on both sides and stick 2 on one side. A strain gage’s electrical resistance varies in proportion to the amount of strain in the device. Never use 2-wire resistance measurement for anything that you need to be accurate. The wires burn non-uniformly. Puzzle 38 | (Tic Tac Toe Puzzle) 06, Feb 16. How can I measure exactly 9 liters of water ? We have matchsticks with us. Interview question for Reporting Analyst in Gurgaon, Haryana.Q4) How to Measure 45 minutes using two identical wires? We have matchsticks with us. 644 Inter­views. Also, the time to measure (45 minutes) is less than the time taken by a single wire. The wire diameter, or wire gauge, determines the load it can safely carry. Measuring Current To measure … Reporting Analyst Interview Gurgaon, Haryana (India) EXL Service Q4) How to Measure 45 minutes using two identical wires? Puzzle 24 | (10 Coins Puzzle) 09, Nov 15. 122 Photos. This can be used to calculate the wire spacing and therefore the wire size. These are for dry cables, if any part of the cable is submerged then it gets a lot trickier. 3rd Day: Gives 1 unit and then the employer is left with 4 unit rod lengths. Recommended Articles. Thus 45 minutes is completely measured. Puzzle 62 | Gold or Silver. Current Describe the use of an ammeter with different ranges. This process sounds harder than it is. 1st Day: Employer gives 1 unit cut. A man has two ropes of varying thickness (Those two ropes are not identical, they aren’t the same density nor the same length nor the same width). I possess two wires. To make a 4-wire measurement on your tester you generally need to create custom 4-wire test fixturing that combines the force and sense lines near your DUT, canceling … Puzzle | Nineteen Pirates and the King. Puzzle 27 | (Hourglasses Puzzle) 12, Nov 15. A charge of 120 C flows for 4 minutes. If we burn one end of the second wire along with burning both ends of the first wire at the same time, at the end of 30 minutes, we get the first wire completely burnt and the second wire partially (not necessarily half because of non-uniformity) burnt (meaning, it still needs 30 minutes to burn completely). Slice around the circumference of the insulation and slip it off the … He actually wants to measure 45 mins. ), Puzzle | Measure 4L using given 3 buckets, Puzzle 34 | (Prisoner and Policeman Puzzle), Puzzle 51| Cheryl’s Birthday Puzzle and Solution, Puzzle 81 | 100 people in a circle with gun puzzle, Puzzle | Two robot with parachute in a line, Puzzle | Divide crescent moon into 6 parts in just two straight lines, Puzzle | Minimum colors required to color a chessboard with no two given pair threatening each other, Data Structures and Algorithms – Self Paced Course, Ad-Free Experience – GeeksforGeeks Premium, We use cookies to ensure you have the best browsing experience on our website. (Still not convinced ?) This position is the place where we will split the second wire into two halves. So, for example, the two halves of a wire might burn in 10 minute and 50 minutes respectively. How do we measure forty-five minutes using two identical wires, each of which takes an hour to burn. Remember, from the initial explanation, the trick was to burn both wires together. The employer can pay for seven days by making 2 cuts in a way that he has 3 rods of size 1, 2 and 4. We have matchsticks with us. This means the first wire burnt in 30 minutes, then how do we measure 45 minutes ? … … More advanced testers allow you to also make 4-wire measurements--using four test points per measurement. Remove every other wire and you have made a diffraction grating. 7. 28, Feb 15. Puzzle 39 | (100 coins puzzle) 20, Feb 16. A charge of 60 C produces a current of 0.5 A. Each rope takes exactly one hour to burn, but they don't burn at a constant rate. Experience. measurement to be. He actually wants to measure 45 mins. Put two wires in adjacent V’s on the bottom of the part. Each rope burns in 60 minutes. In a three-wire system, two wattmeters are required as shown in Figure 14. Add an Interview. The basics of determining uncertainty are quite simple, but combining two uncertain numbers gets more complicated. Alternatively, you can make a small aperture and lay parallel wires across the aperture with the wires touching each other. Please use ide.geeksforgeeks.org, Code inspectors measure the diameters of wires to be sure they are safe for use in buildings. Interview Question. 5. If we light a stick, it takes 60 minutes to burn completely. ), Puzzle 5 | (Finding the Injection for Anesthesia), Puzzle 8 | (Find the Jar with contaminated pills), Puzzle 10 | (A Man with Medical Condition and 2 Pills), Puzzle 12 | (Maximize probability of White Ball), Puzzle 13 | (100 Prisoners with Red/Black Hats), Puzzle 14 | (Strategy for a 2 Player Coin Game), Puzzle 17 | (Ratio of Boys and Girls in a Country where people want only boys), Puzzle 20 | (5 Pirates and 100 Gold Coins), https://www.geeksforgeeks.org/forums/topic/measuring-45-minutes-using-two-identical-wires/, Puzzle | 3 cuts to cut round cake into 8 equal pieces, Write Interview At this point, if we start burning the other end of the second wire, it will take 15 minutes to burn completely. What if we light the stick from both sides? Current Electricity 8 9. 491 Benefits. Source: https://www.geeksforgeeks.org/forums/topic/measuring-45-minutes-using-two-identical-wires/, Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above. If you have an 11 minute and 13 minute hourglass, how can you accurately time 15 minutes? What is the current? Puzzle 33 | ( Rs 500 Note Puzzle ) 27, Nov 15. Writing code in comment? Its best to do a calibration first with a measured length of identical wire, (or apply a short at a measured length along the actual wire ) Expect values like 120m/uS for a single wire , 100m/uS for communications & TV cables , 80m/uS for heavy power cables . He can’t cut the one rope in half because the ropes are non-homogeneous and he can’t be sure how … How can I measure if cutting the wire in half is not possible due to non-homogeneous construction ? The metallic strain gage consists of a very fine wire or, more commonly, metallic foil arranged in a grid pattern. The tricky part is that the wires burn non-uniformly, meaning, you can not use a single wire to measure time as there is no way to determine how much time has passed based on how much the wire has burnt. Both of them have an inconstant thickness but both of them burns completely in sixty minutes. View Jobs at GlobalLogic. The problem is that I want to measure forty-five minutes while using these two wires. Split the second/remaining wire into two wires by cutting it at the burn-out position. generate link and share the link here. Some people use grease on the … The wires burn non-uniformly. Add an Interview. He actually wants to measure 45 ... he can't be sure how long it will burn). (45 minutes = 30 minutes + 15 minutes) How can he measure 45 mins using only these two ropes? Phase shifting phase angle time delay frequency calculation phase lag time shift between voltage calculate phase difference time of arrival ITD oscilloscope measure two signals formula angle current voltage phi phase shift phi time difference - Eberhard Sengpiel sengpielaudio A man has two ropes of varying thickness (Those two ropes are not identical, they aren’t the same density nor the same length nor the same width). Clip the end of the wire with wire cutters and bite into the insulation 1/2 inch from the end with the cutter blades. (Answer In Newtons.) of which takes an hour to burn. 45 minutes – Stick 2 will be burnt out. So, for example, the two halves of a wire might burn in 10 minute and 50 minutes respectively. 11, Sep 17. Figure 14 – Three-wire … What Is The Force Of One Wire On The Other? A 3 A current flows in a circuit for 2 minutes. This means that the cable must have two similar conductors running along the same path in close proximity to one another for these measurement … Two burning ropes are needed to measure 45 minutes exactly. 30 minutes to burn completely. Take your micrometer measurement. Question: Two Identical Wires With Length 1 M, Each With A Current I = 60 A, Are Placed Parallel To Each Other A Distance Of R = 200 M Apart. Light the other end of stick 2. Tags: identical, interviews, kushan, puzzle, scripting, tech, techscripting, wire, How to measure 45 minutes using two wires. Let’s consider the example scenario from the puzzle. Puzzle 24 | (10 Coins Puzzle) 09, … So, for example, the two halves of a wire might burn in 10 minute and 50 minutes respectively “the two halves of a wire might burn in 10 minute and 50 minutes respectively”, ==============================|==============================, First half burns in 10 minutes                              Second half burns in 50 minutes, If we burn the wire from both ends, this is how it looks like after 10 minutes, First half completely burnt                                              only 1/5th of the second half is burnt, First half completely burnt                                              only 3/5th of the second half is burnt, * – Burning point (doesn’t matter for our puzzle, explanation purposes only), ==============================|============*==================. (45 minutes = 30 minutes + 15 minutes). The coloring on individual conducting wires usually does not indicate a size or rating but rather the standard or preferred use of the wire. If you burn one wire from both the ends, it will take 30 minutes to burn no matter the uniformity. By using our site, you How do we measure forty-five minutes using two identical wires, each of which takes an hour to burn. Software Engineer Interview Ghaziabad (India) GlobalLogic How to Measure 45 minutes using two identical wires? A typical electrical cable contains one thick wire wrapped by an outer jacket. OA) 3.24E-05 OB) 1.08E-05 OC) 1.03E-06 OD) 3.60E-06 OE) 3.00E-07 Each rope burns in 60 minutes. 2nd day: Takes back 1 unit cut from employee given on the first day and gives 2 unit cut. Current Electricity 9 10. 657 Benefits. Puzzle 1 | (How to Measure 45 minutes using two identical wires?) Code inspectors measure the diameters of wires to be sure they are safe for use in buildings. Field instruments using these technologies typically require paired-conductor cables to measure length. Page : Puzzle | Pirates and Gems. Burn 50 minute wire in parallel measure 10 minute wire length with out burning it make it a standard gauge repeat the procedure upto 40 minutes means 4 times the length of wire now half its length it is for 5 minutes gauge burn the wire for half length .in this way total time is measured … 3.3k Salaries. If you compare 45 minutes to 60 minutes, it is 3/4th the time taken by a single wire. Three phase electricity consists of three AC voltages of identical frequency and similar amplitude.
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