RRB JE Score Calculator for exams when different branches and streams have exams. What is the actual method to calculate the merit index? It’s not possible to conduct the entire exam in one session or one shift, so the exam is held in multiple shifts. So friends, more than one…
Normalization in Multi-Shift Exams
If an exam is conducted in more than one session in a paper, the first thing you need, friends, is normalization. Understand this: what you’ll need here is to normalize the marks. Before you get into understanding the merit index, you have to understand normalization. Look, friends, there can be two or three types of papers—hard, average, and what you can call moderate average. Moderate falls into one category; you can just consider it an easy paper. So, friends, simply put, if you have a hard paper, then…
So, your marks will be around four or five out of five, on average, so it’s nothing to worry about. The marks you get might go up or down a bit, but that’s about it. For really easy papers, your marks might go down by three or four. This is just a simple calculation based on normalization. It depends on how tough the questions were in different sessions. Like, if a lot of students took the exam and the questions were easy in one session and hard in another, then no one should be treated unfairly.
Why Merit Index is Needed
So, why was a merit index needed for the DGT JE exam? Well, friends, here’s the answer: You must have seen in the notification that there are around 69 posts in total, and most of these posts allow candidates from more than one stream to apply and are eligible. Because of these multi-stream posts, the merit index became necessary. For example, take me—I got a post in category 38. What is that? Friends, category 38 is Mechanical Workshop, Mechanical Workshop JE, or you can just call it Mechanical Workshop.
Friends, for JE Mechanical Workshop posts, is it only mechanical guys who apply? No, mechanical people do apply, but EC (Electronics and Communication) people also apply, even regular EC guys and triple E (Electrical and Electronics) guys apply too. Besides mechanical, anyone with some kind of engineering background applies as well. So, there are plenty of posts where students from multiple streams can apply. By streams, I mean the trade or branch you did in BTech or diploma. So, you see, every student’s question or situation isn’t the same.
The mechanical guys will get their paper, which will be out of 100 marks and based on mechanical basics. The EC guys will have EC questions, and the technical guys will have questions from EE (Electrical Engineering). So, just understand that the technical sections for different streams are different. Now, how can you compare the scores of all the students on one platform, step by step? To fix this issue, the railways started using a merit index so that students from different streams applying for the same post can be fairly compared.
How the Merit Index Works
When kids from different streams compete for the same post, even after score normalization, their scores don’t really get normalized properly. Their scores are calculated on MI after normalization, which helps determine how they’d be selected based on their merit index if placed on the same platform. So, here’s how it works, friends: first, the merit index is created, then your priority is applied to that. Your priority will be set so you can see which post you’re getting based on your merit index and priority. So, friends…
Formula and Calculation
Alright, now let me show you the actual calculation of the merit index. So, friends, here’s what you’ll need for the merit index. First, you need your raw marks. From that, you’ll calculate your normalized marks. Your raw marks will be scaled to 150, and then you’ll normalize them to 100. How to calculate it out of 100? Depending on whether the paper was hard or moderate, you’ll add or subtract accordingly. Now, friends, the next step is to check either at 0.1 or the average normalized marks of the top 10 candidates.
What is marks, what is average normalized marks?
So, friends, the railway has created a formula, and in that formula, the railway has set a certain benchmark. What do we call this, friends? It’s either 0.1 or the average normalized marks of the top 10. Between these two, whichever is higher will be considered. This is called MT. Your normalized marks, friends, mean M, which stands for the candidate’s marks. And the railway has set two benchmarks.
Understanding Key Values
You’re saying the first benchmark is, guys, what score has been assigned to SQMQ? It’s 350, meaning the average merit index is considered to be 350. The second benchmark, guys, is ST and MT. What is ST and MT? Sorry, not MT, here it’s called ST. You can call it ST. This basically means the sum total, the highest score considered in the merit index is 900. So, 900 is the highest merit index and average.
The merit index was considered 350, so guys, let’s say our score is out. First, let me show you my scorecard. Here, check it out—this is my scorecard for CBT 2. You can see here my normalized marks, my actual marks were 103.6 out of 150. When you convert that to a ratio out of 100, it comes to 69.2, which was my hard shift score. So, it increased by about 4 marks to 73.2. What did my merit index turn out to be, guys? 7226. So, based on this, let’s…
Alright, let’s just take my example. Use my example. So, my normalized marks—what are they, friends? The AM, which they call MT. MT, my MT was… sorry, it’s called M. So, my marks were, let me show you once again: 70, 73.2, 73, 73.25. Those are my normalized marks. And my merit index, friends, is 72.26. But here, we’re going to learn how this 72.6 value is calculated. So, there’s a simple formula to find the merit index. It’s A, aka K.
So basically, friends, if your average is around 350 or above, only then will you rank well in the merit index and get a chance for any post. Otherwise, it won’t make any sense. There’s A1 Plus, A1 Plus ST Minus, A1 ST Minus, S1 ST — your highest merit index, your average merit index. Then, your marks normalized minus A1 MK, which is your average marks, and below that is what the top 10 or the top 0.1% average normalized marks are, minus MK. So, friends, you’ll be able to easily calculate this once your results are out.
Or when they talk about your trend, like when the exam happens, there are a lot of analyses about how many scored between 80 to 90, how many between 90 to 100. From that, you roughly estimate something, like you find out the average marks of the top 10. In my case, friends, you already know the cut-off value, it’ll be 350 plus. Here, the highest is 900 and minus 350. After that, write down your marks. See, mine is 73.2. Now, what does m k mean, friends? m k stands for the qualifying mark for the general category.
Marks are fixed by the railway. Friends, M K is a fixed value. The railway has fixed A K, A C, and ST values. So, what’s the value of M K? Friends, it’s 40 marks. The value of M K is 40 marks for the general category. Now, general category doesn’t mean it’s different for SC/ST. It means the general category marks are taken as 40, and the merit index is calculated accordingly. So, here you can write 40 minus… In my case, the top 10 candidates had marks like this.
So, about 89, which means the top score was 8908 on average, minus that, friends. Let’s say around 350 plus or minus, okay? That gives you about 550. Now put that in the bucket, 7325 divided by 4, so here it is, friends. You get 33, then 89.4, so how much does that come to? Friends, 49.8. Now solve this a bit: 33.25 divided by 4908, 4908. So, friends, the value comes out to around 350 plus 550 in the bucket, times 0.0674. Multiply 0.0674 by 550, so friends, this comes out to about 350 plus 32605. When you add this up, friends, it comes to 72205. So, friends, here it is.
The merit index I manually calculated live for you—now friends, look at what the merit index shows on the scorecard. Here, the same 722 merit index is given. I hope you’ve understood it well. So, friends, what do you need to calculate the merit index? Look, the value for SK is provided by the railway, the value for ST is given, and the value for MK is also provided. These values you have here—these are your marks for the formula. And here’s the average for the top 10 candidates or the top 0.1% candidates.
RRB JE Score Calculator
function normalizeMarks(rawMarks, rawMax = 150, difficultyAdjust = 0) { let scaled = (rawMarks / rawMax) * 100; return scaled + difficultyAdjust; } function chooseMT(top10Avg, top0_1Avg) { const candidates = []; if (typeof top10Avg === “number”) candidates.push(top10Avg); if (typeof top0_1Avg === “number”) candidates.push(top0_1Avg); if (candidates.length === 0) throw “Provide top10Avg or top0_1Avg”; return Math.max(…candidates); } function computeMeritIndex(normalizedMark, MK = 40, MT = 90, base = 350, ST = 900) { if (MT === MK) throw “MT and MK cannot be equal”; let nm = Math.max(normalizedMark, MK); nm = Math.min(nm, MT); const ratio = (nm – MK) / (MT – MK); return base + ratio * (ST – base); } // Example const raw = 103.6; const normalized = normalizeMarks(raw, 150, 4.0); const MT = chooseMT(89.4, null); const MI = computeMeritIndex(normalized, 40, MT, 350, 900); console.log(“Normalized:”, normalized.toFixed(3), “Merit Index:”, MI.toFixed(3));Read More Engineers Career Track
Another Calculator :RankMitra