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Engineering Mechanics Examination, Cork Institute of Technology, 2009/10, Exams of Mechanical Engineering

National Institute of Industrial EngineeringMechanical Engineering

The instructions and questions for the engineering mechanics examination held at the cork institute of technology during the winter 2009 semester. The examination is for students enrolled in the b.eng (hons) in structural engineering or mechanical engineering programs, and covers topics such as beam reactions, shear force and bending moment diagrams, plane pinjointed frameworks, and compressive stresses in concrete columns. Four questions with a total of 100 marks.

Typology: Exams

2012/2013

Uploaded on 03/23/2013

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CORK INSTITUTE OF TECHNOLOGY
INSTITIÚID TEICNEOLAÍOCHTA CHORCAÍ
Semester 1 Examinations 2009/10
Module Title: Engineering Mechanics
Module Code: MECH6009
School: Building and Civil Engineering
Programme Title: B.Eng (Hons) in Structural Engineering Year 1
B.Eng (Hons) in Mechanical Engineering Year 1
Programme Code: CSTRU_8_Y1
EMECH_8_Y1
EOMNI_8_Y1
External Examiner(s): Mr. J. O’Mahony, Dr. M. Richardson
Internal Examiner(s): Brian D. O’Rourke
Instructions: All questions to be attempted
Duration: 2 hours
Sitting: Winter 2009
Requirements for this examination: Students may use mathematics tables
Note to Candidates: Please check the Programme Title and the Module Title to ensure that you have received the
correct examination paper.
If in doubt please contact an Invigilator.
pf3

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CORK INSTITUTE OF TECHNOLOGY

INSTITIÚID TEICNEOLAÍOCHTA CHORCAÍ

Semester 1 Examinations 2009/

Module Title: Engineering Mechanics

Module Code: MECH

School: Building and Civil Engineering

Programme Title: B.Eng (Hons) in Structural Engineering Year 1 B.Eng (Hons) in Mechanical Engineering Year 1

Programme Code: CSTRU_8_Y EMECH_8_Y EOMNI_8_Y

External Examiner(s): Mr. J. O’Mahony, Dr. M. Richardson Internal Examiner(s): Brian D. O’Rourke

Instructions: All questions to be attempted

Duration: 2 hours

Sitting: Winter 2009

Requirements for this examination: Students may use mathematics tables

Note to Candidates: Please check the Programme Title and the Module Title to ensure that you have received the correct examination paper. If in doubt please contact an Invigilator.

Q1 Figure Q. 1

(a) Determine the reactions for the beam shown. (b) Draw the shear force and bending moment diagrams for the beam noting all significant values.

30 marks

Q2 Figure Q. 2

Use the Method of Joints to determine the forces in the plane pin- jointed framework shown.

30 marks

Q3 A reinforced concrete column 500mm diameter by 2.2m high is

reinforced with 8 No. 25mm diameter high tensile steel bars. The

column is subject to an applied load of 2200kN excluding self-weight. The self-weight may be taken as the weight of the gross volume of the column taken as plain concrete.

Determine (a) the maximum compressive stresses in the concrete and the steel and (b) the amount of shortening of the column under the total

load. Take Econcrete = 26 kN/mm^2 ; E (^) steel = 205 kN/mm^2

Take unit weight of concrete = 24kN/m^3

20 marks

Q4 A ball is thrown vertically upwards with a velocity of 20m/s. 1.

seconds later another ball is thrown upwards with an initial velocity of of u m/s. The balls collide after a further 1.5 seconds. Shown that u = 17.93m/s. What is the total distance each ball travels before they collide? g = 9.81m/s^2

20 marks

Contd./-