M पर एक उपकरण स्थापित किया गया था और N पर स्थित स्टाफ के तल से 5 मीटर ऊपर स्थित वेन का उन्नयन कोण 10°0' था। M और N के बीच क्षैतिज दूरी 3000 मीटर ज्ञात थी। स्टाफ स्टेशन N का RL ज्ञात कीजिए, दिया गया है कि उपकरण अक्ष का RL 1250.50 मीटर है। वक्रता और अपवर्तन के प्रभाव पर विचार करें।

(tan10° = 0.1763 मान लीजिए)

This question was previously asked in
BHEL Engineer Trainee Civil 24 Aug 2023 Official Paper
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  1. 1780.01 मीटर
  2. 1779.42 मीटर
  3. 1784.44 मीटर
  4. 1775.01 मीटर

Answer (Detailed Solution Below)

Option 4 : 1775.01 मीटर
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गणना:

दिया गया है:

दूरी (D) = 3000 मीटर = 3.0 किमी

उन्नयन कोण = 10° (tan 10° = 0.1763)

स्टाफ के तल से ऊपर वेन की ऊँचाई = 5 मीटर

उपकरण अक्ष का RL = 1250.50 मीटर

चरण 1: उपकरण से वेन तक ऊर्ध्वाधर ऊँचाई

चरण 2: वक्रता और अपवर्तन के लिए संशोधन

चरण 3: उपकरण के ऊपर वेन की शुद्ध ऊँचाई

चरण 4: वेन का RL

चरण 5: स्टाफ स्टेशन N का RL

मीटर ≈ 1775.01 मीटर

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