Mechanical Science Question Paper

Mechanical Science

Course:

Institution: Nyeri Technical Training Institute question papers

Exam Year:2012

Nyeri Technical Training Institute
CAT 1 MC-MVM 010
JAN -APRIL 2012
MECHANICAL SCIENCE
TIME: 1HR 30 MIN

INSTRUCTIONS
This paper contains Two questions
Attempt All the questions

Q1 (a) Define the following terms as applied to forces;
(i) Coplanar forces
(ii) Equilibriant forces
(iii) Resultant force.
(iv) Concurrent forces.
(4 marks)
(b) State the polygon of forces rule.
(3 marks)
(b)-Define magnitude . (2 marks)
(b) equilibrium
2. (a) State Charles'' law.
(2 marks)
(b) A quantity of a gas at a temperature of 15• c is heated at a constant pressure until its volume is doubled. What will be the final temperature of the gas?
(5 marks)
(c) The compression ratio of an air compressor is 9 to 1, the pressure at the commencement of the compression stroke is 110kN/m2 abs and the temperature 115• c. Calculate the absolute pressure at the end of the compression stroke if the temperature has been risen to 180•c.
(7 marks)
(c) resultant forces.
(6 marks)

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