Mathematics Paper

Uttarakhand Government Jobs Engineer 2015

  • Year 2015
  • Conducted By UKPSC
  • Maximum Marks 200
  • Duration Three Hours

Exam Details

Detail Information
Examination Uttarakhand Public Service Commission (UKPSC) VRA Exam
Year 2015
Conducting Body UKPSC
Duration Three Hours
Maximum Marks 200

This page hosts the Uttarakhand Public Service Commission (UKPSC) VRA Exam (2015) question paper conducted by UKPSC. Maximum marks: 200. Duration: Three Hours. Read exam instructions and page-2 questions online, or download the official PDF for offline practice.

Major Topics Covered

  • Uttarakhand Public Service Commission (UKPSC) VRA Exam
  • UKPSC
  • 2015 question paper
  • previous year paper
  • PDF download

Why This Paper is Important

  • Useful for Uttarakhand Public Service Commission (U preparation
  • Helps understand the latest exam pattern
  • Useful for practice and self-assessment
  • Covers frequently asked General Studies topics
  • Helpful for analysing question trends

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Instructions

  • पूर्णांक : 200 Time allowed: Three Hours] [Maximum Marks: 200 (i) इस प्रश्न-पत्र में दो खण्ड ‘अ’ तथा ‘ब’ हैं । प्रत्येक खण्ड में चार प्रश्न हैं । किन्हीं पाँच प्रश्नों के नोटः उत्तर दीजिए, प्रत्येक खण्ड से कम से कम दो प्रश्न अवश्य होना चाहिये । (ii) सभी प्रश्नों के अंक समान हैं । (iii) एक प्रश्न के सभी भागों का उत्तर अनिवार्यत: एक साथ दिया जाय । (iv) केवल नॉन-प्रोग्रामेबल कैलकुलेटर अनुमन्य है।
  • Note: This question paper has two sections 'A' and 'B'.
  • Every section has four \left( u\right) questions, attempt any five questions.
  • At least two questions should be from every section.
  • (ii) All questions carry equal marks.
  • (iii) All the parts of a question must be answered together.
  • (iv) Only non-programmable calculators are allowed. ত্ত্বত – ‘अ’ SECTION - 'A' (अ) यदि V, n × n आव्यूहों की, प्रान्त F पर, एक वैक्टर समष्टि हो तथा B n × n की एक निश्चित आव्यूह

Questions (page 2)

Q2.

(a) Find the equation of the plane which passes through the line of intersection of the planes 2x - y = 0, 3z - y = 0 and is perpendicular to the plane 4x + 5y - 3z = 8. 10

(b) Find the equations of the planes which contain the line 7x + 10y = 30, 5y - 3z = 0 and touch the ellipsoid 7x2 + 5y2 + 3z2 = 6. 10

(c) Solve the differential equation (D3 - D2 - 6D) y = x2 + 1 where D = d/dx. 20

(अ) सरल रेखा 2x - y = 0, 3z - y = 0 की कटान रेखा से जाने वाले उस समतल का समीकरण ज्ञात करें जो कि समतल 4x + 5y - 3z = 8 के लम्बवत है। 10

(ब) रेखीयक 7x + 5y2 + 3z2 = 6 उस समतल का समीकरण ज्ञात कीजिए जिन पर रेखा 7x + 10y = 30, 5y - 3z = 0 स्थित है। 10

(स) अवकल समीकरण (D3 - D2 - 6D) y = x2 + 1 का हल ज्ञात कीजिए जहाँ पर D = d/dx है। 20

Q3. (a) Verify the formula a × (b × c) = (a · c) b - (a · b) c, where a = î - 2ĵ + k̂, b = 2î + ĵ + k̂ and c = î + 2ĵ - k̂. 10

(a) Verify the formula a × (b × c) = (a · c) b - (a · b) c, where a = î - 2ĵ + k̂, b = 2î + ĵ + k̂ and c = î + 2ĵ - k̂. 10

(b) If r̂ be the unit vector in the direction of r, then prove that r × dr = r̂ × dr̂/r2. 10

(c) Six equal rods AB, BC, CD, DE, EF, FA (each of weight W) are freely jointed at their extremities so as to form a hexagon; the rod AB is fixed in a horizontal position and the middle points of AB and DE are jointed by a string. Prove that the tension in the string is 3W. 20

(अ) सदिश a = î - 2ĵ + k̂, b = 2î + ĵ + k̂ तथा c = î + 2ĵ - k̂ के लिए सूत्र a × (b × c) = (a · c) b - (a · b) c का सत्यापन कीजिए। 10

(ब) यदि r̂ दिशा में r का एकक सदिश हो तो सिद्ध कीजिए r × dr = r̂ × dr̂/r2 10

(स) समद्व AB, BC, CD, DE, EF, FA (प्रत्येक का भार W) अपने-अपने छोरों पर मुक्त रूप से इस प्रकार जुड़ी हैं कि उनसे एक षट्भुज बनता है। छड़ AB क्षैतिज स्थिति में है तथा AB व DE के मध्य बिन्दुओं को जोड़ने वाली डोरी में तनाव 3W है। सिद्ध करें डोरी का तनाव 3W है। 20

  • (a) Verify the formula a × (b × c) = (a · c) b - (a · b) c, where a = î - 2ĵ + k̂, b = 2î + ĵ + k̂ and c = î + 2ĵ - k̂. 10
  • (b) If r̂ be the unit vector in the direction of r, then prove that r × dr = r̂ × dr̂/r2. 10
  • (c) Six equal rods AB, BC, CD, DE, EF, FA (each of weight W) are freely jointed at their extremities so as to form a hexagon; the rod AB is fixed in a horizontal position and the middle points of AB and DE are jointed by a string. Prove that the tension in the string is 3W. 20
    (अ) सदिश a = î - 2ĵ + k̂, b = 2î + ĵ + k̂ तथा c = î + 2ĵ - k̂ के लिए सूत्र a × (b × c) = (a · c) b - (a · b) c का सत्यापन कीजिए। 10
    (ब) यदि r̂ दिशा में r का एकक सदिश हो तो सिद्ध कीजिए r × dr = r̂ × dr̂/r2 10
    (स) समद्व AB, BC, CD, DE, EF, FA (प्रत्येक का भार W) अपने-अपने छोरों पर मुक्त रूप से इस प्रकार जुड़ी हैं कि उनसे एक षट्भुज बनता है। छड़ AB क्षैतिज स्थिति में है तथा AB व DE के मध्य बिन्दुओं को जोड़ने वाली डोरी में तनाव 3W है। सिद्ध करें डोरी का तनाव 3W है। 20

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