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DMRC JE Previous Year Papers – Sample Question Answers (ECE, Mechanical)

DMRC JE Previous Year Papers

DMRC JE Previous Year PapersDo you really want to crack DMRC JE Exam? First solve DMRC JE Previous Year Papers of ECE and Mechanical to make your concept clearer. By solving DMRC JE Sample Paper you will know about patter of questions, which will be asked at time of DMRC Junior Engineer Exam. Check out this page to download DMRC JE Question & Answers for both ECE, Mechanical Engineering.

Delhi Metro Rail Corporation conducts written exam for the recruitment of Junior Engineer in different disciplines such as Electronics & Communication Engineering (ECE), Mechanical Engineering (ME) etc. You can get DMRC Previous Year Papers For Junior Engineer by going through this page that is created by the team of www.recruitmentinboxx.com.

DMRC JE Previous Year Papers

Q1. Pick up the polymineralic rock from the following:

(a) Quartz sand

(b) Pure gypsum

(c) Magnesite

(d) Granite

(e) None of these.

Answer: (d)

Get Detailed: DMRC Syllabus

Q2. If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is

(a) 200 ppm

(b) 225 ppm

(c) 250 ppm

(d) None of these.

Answer: (c)

Q3. The dimensions of a rectangular settling tank are : length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is

(a) 204 cu m

(b) 208 cu m

(c) 212 cu m

(d) 216 cu m

(e) 220 cu m.

Answer: (d)

Q4. The coefficient of restitution for elastic bodies is one.

(a) Correct

(b) Incorrect

Answer: (b)

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Q5. The unit of force in S.I. system of units is

(a) dyne

(b) kilogram

(c) newton

(d) watt

Answer: (c)

Q6. The number of digits in octal system is

(a) 8

(b) 7

(c) 10

(d) none

Answer: (a)

Q7. The number of digits in Hexadecimal system is




(d) 8

Answer: (c)

Q8. The number of bits in a nibble is


(b) 5

(c) 4

(d) 8

Answer:  (c)

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Q9.  Which of the following binary numbers is equivalent to decimal 10





Answer:  (c)

Q10. What is the output state of an OR gate if the inputs are 0 and 1?





Answer: (b)

Q11.  What is the output state of an AND gate if the inputs are 0 and 1?

(a) 0




Answer: (a)

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Q12. Logic states can only be ___ or 0.

(a) 3

(b) 2

(c) 1

(d) 0

Answer: (c)

Q13.  A byte corresponds to

(a) 4 bits

(b) 8 bits

(c) 16 bits

(d) 32 bits

Answer: (b)

Q14.  An OR gate has…

(a) Two inputs and one output

(b) One input and one output

(c) One input and two outputs

(d) none of above

Answer: (a)

Also Check: Railway Exam Syllabus

Q15.  In PERT analysis a critical activity has

(a) maximum Float

(b) zero Float

(c) maximum Cost

(d) minimum Cost

Answer : (b)

Q16. The S-N curve for steel becomes asymptotic nearly at

(a)  103 cycles

(b) 104 cycles

(c) 106 cycles

(d) 109 cycles

Answer : (c)

Q17. The angle between two unit-magnitude coplanar vectors P(0.866, 0.500,0) and Q(0.259, 0.966,0) will be

(a) 0°

(b) -30°

(c) 45°

(d) 60°

Answer : (c)

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Q18. A lot has 10% defective items. Ten items are chosen randomly from this lot. The probability that exactly 2 of the chosen items are defective is

(a) 0.0036

(b) 0.1937

(c) 0.2234

(d) 0.3874

Answer : (b)

Q19. S-N curve for steel becomes asymptotic nearly at

(a) 103 cycles

(b) 104 cycles

(c) 106 cycles

(d) 109 cycles

Answer : (c)

Q20.  The execution of a CNC part program block NO20 GO2 X45.0 Y25.0 R5.0 the type of tool motion will be

(a) circular Interpolation —clockwise

(b) circular Interpolation —counterclockwise

(c) linear Interpolation

(d) rapid feed

Answer : (a)

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Q21. In a rolling process, sheet of 25 mm thickness is rolled to 20 mm thickness. Roll is of diameter 600 mm and it rotates at 100 rpm. The roll strip contact length will be

(a) 5 mm

(b) 39 mm

(c) 78mm

(d) 120mm

Answer : (a)

 Q22. A NAND gate is equivalent to an AND gate plus a …. gate put together.

(a) NOR

(b) NOT

(c) XOR

(d) none

Answer: (b)

Q23. Decimal number 10 is equal to binary number





Answer: (d)

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Q24. Environment friendly refrigerant R134a is used in the new generation domestic

refrigerators. Its chemical formula is

(a) CH C1 F2

(b) C2 C13 F3

(c) C2 C12 F4

(d) C2 H2 F4

Answer : (d)

Q25. Hexadecimal number F is equal to octal number





Answer: (c)

Dear applicants hope the above provided DMRC JE Previous Year Papers or DMRC JE Question paper will surely help you in your preparation. If you have any query regarding information stated above, please ask in comment box that is given below. We will try to solve your query as soon as possible.

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  1. plz send me previous 10 year paper for electronic engg of dmrc

  2. Good morning Sir I am Usha want to see previous question papers of dmrc with answers so please send me previous question papers with Answer key for je electronics all papers reasoning aptitude math gk please .I am kindly thankful for it.

  3. Hello Sir/Mam
    kindly mail me JE ELECTRONICS previous year question papers. It would be of great help. Thanx in advance

  4. i need je electronics previous paper

  5. Please send me previous years question papers of JE Civil on my email id : [email protected]

  6. agidi praveenkumar

    plz send me previous year electronics and communication question paper to my mail id .

  7. Plzz send me previous year paper of j e in electronics engineering …i will highly thankful to yours

  8. Kindly send me the previous year question paper for JE (mechanical) on my e-mail I’d.

  9. Please send me previous year question papers for mechanical

  10. Plz send mechanical paper on my gmail I’d thanx in advance 🙂

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