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Trade Theory Question Paper

Trade Theory

Course:

Institution: Nyeri Technical Training Institute question papers

Exam Year:2011

Nyeri Technical Training Institute
Automotive Department
End Of Term 1 Exams-May-July 2011
Trade Theory Class, MVM 11

TIME: 2 HRS-
INSTRUCTIONS
a) Answers all Questions.
b)All Questions carry equal marks.
c)Use pencils for all drawings or sketches.

Q1 State the use of the following workshop tools.
i) Torque wrench
ii) Hacksaw flame and bride
iii)Soft faced hammer
iv)Vee block
b)State any Two precautions to be observed when carrying out the following operations in the automotive workshop.
i) Hole drilling.
ii) tool grinding.
c)Briefly explain the procedure of administering first aid in the following cases.
i)External cuts.
ii)Nose bleeding
iii)Electric shocks. (20marks)

Q2. State any Two precautions to be observed when using the following measuring tools.
i)Try square
ii)Vernier caliper
iii)Micrometer screw gauge
iv)Dial test indicator
v)Engineer rule

b)Illustrate the following readings.
i)13.26 mom on a vernier caliper
ii)23.87 mom on a micrometer.
iii)0.212 mom on a dial test indicator. (20marks)

Q3.Briefly explain the main composition of the following metals.
i)Pig iron
ii)Wrought iron
iii) Plain steel
b)Define and explain briefly the following mechanical properties of materials.
i)Toughness
ii)Hardness
iii)Malleability
iv)Plasticity

c)Briefly explain the following terms associated with plastics giving three examples of each.
i)Thermo setting plastics
ii)Thermoplastics. (20 marks)

Trade Theory Question Paper

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