BPSC Mechanical Engineering Paper-II Question Paper 2020 PDF

Bihar Government Jobs Engineer

  • Conducted By BPSC
  • Maximum Marks 75
  • Duration 1.5 Hours
  • Languages English & Hindi

Exam Details

Detail Information
Examination Assistant Conservator of Forests Competitive Examination
Conducting Body BPSC
Paper Mechanical Engineering Paper-II
Subject Mechanical Engineering
Duration 1.5 Hours
Maximum Marks 75
Question Type Descriptive / Subjective

This document contains the Mechanical Engineering Paper-II question paper for the BPSC Assistant Conservator of Forests Competitive Examination. The paper, designated as 04/SBS/M-2020-14B, carries a maximum of 75 marks and is to be completed within 1.5 hours. It is designed for candidates preparing for the BPSC ACF recruitment. The paper includes instructions in both Hindi and English, emphasizing that candidates should answer in their own words and that English versions are considered authentic in case of ambiguity. No data books or tables are allowed, and candidates may assume data if necessary. The questions are primarily descriptive, requiring in-depth answers. This paper is a crucial resource for aspirants aiming to qualify for the Assistant Conservator of Forests position.

Major Topics Covered

  • Thermodynamics
  • Fluid Mechanics
  • Heat Transfer
  • Gas Laws
  • Specific Heat

Why This Paper is Important

  • Useful for Assistant Conservator of Forests Competi preparation
  • Helps understand the latest exam pattern
  • Useful for practice and self-assessment
  • Covers frequently asked General Studies topics
  • Helpful for analysing question trends

Related Resources

  • BPSC Mechanical Engineering Paper-I
  • BPSC Assistant Engineer Previous Year Papers
  • UPSC ESE Mechanical Engineering Papers
  • BPSC Mechanical Engineering Paper-II Answer Key 2020
  • BPSC ACF Syllabus
  • Mechanical Engineering Syllabus for Competitive Exams
  • BPSC ACF Exam Pattern
  • BPSC Exam Pattern for Engineering Posts

Instructions

  • पूर्णांक : 75 समय: 1½ घण्टे Instructions: • The figures in the margin indicate full marks. Answer any five questions. • Candidates are required to give their answers in their own words as far as practicable. • No Data Books/Tables are allowed. Assume the data, if required anywhere. • All questions have been printed both in Hindi and English. In case of any ambiguity in Hindi version, the English version shall be considered authentic. • Parts of the same question must be answered together and must not be interposed between answers to other questions. अनुदेश : उपान्त के अंक पूर्णांक के द्योतक हैं।
  • किन्हीं पाँच प्रश्नों के उत्तर दें। • परीक्षार्थी यथासम्भव अपने शब्दों में ही उत्तर दें। • आँकड़ा सारणिका और पुस्तिका के प्रयोग की अनुमति नहीं है।
  • अगर कहीं आवश्यक हो, आँकड़े मान लें। • सभी प्रश्न हिन्दी और अंग्रेजी दोनों भाषा में छपे हैं।
  • यदि हिन्दी भाषा में कोई संदेह है, तो अंग्रेजी भाषा को ही प्रामाणिक माना जाएगा। • एक ही प्रश्न के विभिन्न भागों के उत्तर अनिवार्य रूप से एक साथ ही लिखे जाएँ तथा उनके बीच में अन्य प्रश्नों के उत्तर न लिखे जाएँ। /28 88 | 2008 | P.T.O.

Questions (page 2)

Section A

Q1. A well-insulated vessel of volume V contains a gas at pressure p0 and temperature t0. The gas from a main at a uniform temperature t1 is pumped into the vessel and the inflow rate decreases exponentially with time according to \dotm = \dotm0 e-α \tau, where a is a constant. Determine the pressure and temperature of the gas in the vessel as a function of time. Neglect the K.E. of the gas entering the vessel and assume that the gas follows the relation- pV = RT, where T = t + 273 and its specific heats are constant.

(a) If the vessel was initially evacuated, show that the temperature inside the vessel is independent of time. Determine the charging time when the

(b) pressure inside the vessel reaches that of the main. 15 आयतन V के एक अच्छी तरह से ऊष्मा-रोधित पोत दबाव p\rm 0 और तापमान t\rm O पर एक गैस शामिल है। एकसमान तापमान t1 पर एक मुख्य रूप से गैस पोत में पम्प की जाती है और प्रवाह की दर \dotm = \dotm0 e-a\tau, जहाँ a एक स्थिरांक है, के अनुसार समय के साथ तेजी से कम हो जाती है। समय के एक समारोह के रूप में बर्तन में दबाव और गैस के तापमान को निर्धारित कीजिए। बर्तन में प्रवेश गैस की गतिज ऊर्जा की उपेक्षा कीजिए और मान लीजिए कि गैस संबंध इस प्रकार है— pV = RT, जहाँ पर T = t + 273 और गैस की विशिष्ट ऊष्माएँ स्थिर हैं। (क) यदि बर्तन शुरू में खाली कर लिया गया था, तो दिखाइए कि बर्तन के अन्दर तापमान समय से स्वतंत्र है। (ख) चार्ज समय निर्धारित कीजिए जब बर्तन के अन्दर दबाव मुख्य (main) तक पहुँच जाए। असल सम्मान के बाद के बाद 04/SBS/M-2020-14B/28 \overline{\mathbf2}

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Frequently asked questions

What is the name of the exam?

The exam is the Assistant Conservator of Forests Competitive Examination conducted by BPSC.

Which paper is this question paper for?

This is the Mechanical Engineering Paper-II.

What is the conducting body?

The Bihar Public Service Commission (BPSC).

What is the maximum marks for this paper?

The maximum marks for this paper are 75.

What is the time allowed to complete the paper?

The time allowed is 1.5 hours.

What is the paper code?

The paper code is 04/SBS/M-2020-14B.

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