railway RRB JE (CBT I + CBT II) Mock Test 2024 Basic Science and Engineering Engineering Drawing

चिह्न D1 के ड्राइंग बोर्ड का मानक आकार क्या है? (mm में)

1

1000 × 700 × 25

2

100 × 75 × 25

3

1500 × 750 × 25

4

1500 × 700 × 25

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