How many sections are there in the question paper?

The question paper contains a total of 2 Sections: Section-A and Section-B.

How many questions are there in each section?

There are FOUR questions in each section.

Which questions are compulsory in Section-A and Section-B?

Question No. 1 of Section 'A' and Question No. 5 of Section 'B' are compulsory.

How many additional questions must candidates attempt?

Candidates have to attempt another THREE questions from the remaining SIX questions, choosing at least ONE question from each section.

What should candidates do if they assume data for answering a question?

Wherever any assumption is made for answering a question, it must be clearly indicated.

How are marks indicated for questions?

Marks carried by a question/section is indicated against it.

What happens if a page or portion of a page is left blank?

Any page or portion of the page left blank in the Answer Booklet must be clearly struck off.

JPSC AE Mechanical Engineering Paper-I 2023 Question Paper PDF

Name: JPSC AE Mechanical Engineering Paper-I 2023 Question Paper PDF
Creator: JPSC
Keywords: JPSC AE Mechanical Engineering Paper-I, Assistant Engineer Mechanical Engineering Exam, JPSC Mechanical Engineering Question Paper, Mechanical Engineering Paper-I PDF, JPSC AE Recruitment 2023, Mechanical Engineering Syllabus JPSC, JPSC AE Exam Pattern, Mechanical Engineering Previous Year Paper, Assistant Engineer Mechanical Engineering, JPSC AE Mechanical Engineering, Mechanical Engineering Paper-I, JPSC AE, Assistant Engineer, Mechanical Engineering, Question Paper

Jharkhand Government Jobs Engineer

Conducted By JPSC
Maximum Marks 200
Duration 3 Hours
Languages English

Exam Details

Detail	Information
Examination	ASSISTANT ENGINEER WRITTEN EXAM
Conducting Body	JPSC
Paper	MECHANICAL ENGINEERING PAPER-I
Subject	MECHANICAL ENGINEERING
Duration	3 Hours
Maximum Marks	200
Question Type	Mixed

This document contains the JPSC Assistant Engineer Written Exam question paper for Mechanical Engineering Paper-I, Subject Code 10. The exam allows 3 hours to complete and is out of a maximum of 200 marks. It consists of two sections, Section-A and Section-B, with compulsory questions and a requirement to attempt a minimum number of questions from each section. This paper is crucial for aspirants targeting Assistant Engineer positions under JPSC, providing a clear understanding of the examination's scope and difficulty level in Mechanical Engineering.

Major Topics Covered

Thermodynamics
Gas Turbine
Clausius Inequality
Heat Transfer
Air Conditioning
Steam Power Station
Heat Engines
Refrigerators

Why This Paper is Important

Useful for ASSISTANT ENGINEER WRITTEN EXAM 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

JPSC AE Mechanical Engineering Paper-II
JPSC AE Civil Engineering Paper-I
JPSC AE Electrical Engineering Paper-I
JPSC AE Mechanical Engineering Paper-I Answer Key 2023
JPSC AE Mechanical Engineering Syllabus
Mechanical Engineering Syllabus for Competitive Exams
JPSC AE Exam Pattern
Mechanical Engineering Exam Pattern

Instructions

Answers must be written in ENGLISH only.

Questions (page 2)

Q1.

(iii) Establish the Inequality of Clausius.

(iv) Two fins of 0.01 m diameter and 0.1 m length are used to dissipate heat from a surface at 230 °C. The surroundings is at 30 °C. The thermal conductivity of the material is 20 W/mk. The convective coefficient is 30 W/m^2k. To check alternate arrangement; it is proposed to replace the fins by a single fin of the total area of the two fins with length and other conditions being the same as before. Compare the heat transferred and the tip temperatures.

(v) An air conditioning unit receives an air water vapor mixture at 101 kPa, 35 °C and 80% relative humidity. Determine the following:
(a) the dew point
(b) the humidity ratio
(c) the partial pressure of air
(d) the mass fraction of water vapour

Q2.

(i) In a steam power station steam flows steadily through a 0.2 m diameter pipe line from the boiler to the turbine. At the boiler end, the steam conditions are found to be p = 4 MPa, t = 400 °C, h = 3213.6 kJ/kg and V = 0.073 m³/kg. At the turbine end, the conditions are found to be P = 3.5 MPa, t = 392 °C, h = 3202.6 kJ/kg and sim = 0.084 m³/kg. There is a heat loss of 8.5 kJ/kg from the pipe line. Calculate the steam flow rate.

(b) A reversible heat engine operates between two reservoirs at temperature of 600 °C and 40 °C. The engine draws a reversible refrigerator which operates between reservoirs at temperatures of 40 °C and -20 °C. The heat transfer to the heat engine is 2000 kJ and the net work output of the combined engine - refrigerator plant is 360 kJ.
(I) Evaluate the heat transfer to the refrigerant and the net heat transfer to the reservoir at 40 °C.
(II) Reconsider (a) given that the efficiency of the heat engine and the COP of the refrigerator are each 40% of their maximum possible values.

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Frequently asked questions

What is the full name of the exam?

The full name of the exam is ASSISTANT ENGINEER WRITTEN EXAM.

Which board conducts this exam?

This exam is conducted by JPSC.

What is the subject code for Mechanical Engineering Paper-I?

The subject code for Mechanical Engineering Paper-I is 10.

What is the total duration for the Mechanical Engineering Paper-I?

The total duration allowed for the exam is 3 Hours.

What are the maximum marks for Mechanical Engineering Paper-I?

The maximum marks for Mechanical Engineering Paper-I is 200.

In which language should the answers be written?

Answers must be written in ENGLISH only.

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