Workshop technology-1
Previous year question paper with solutions for Workshop technology-1 Dec-2017
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Question paper 1
SECTION-A
Q1. a) Fill in the blanks.
i. Acetylene gas is generated from ____________.
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Read moreii. MIG stands for ____________
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Read moreiii. Plastic patterns provide____________ surface finish
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Read moreiv. Draft allowance helps in easy ____________ of pattern from sand.
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Read morev. Cores are prepared in___________.
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Read morevi. The bottom most flask in mould is called________.
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Read morevii. The process of deforming raw material under hammering is called ____________
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Read moreviii. Tube drawing is used to produce ____________ tubes.
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Read moreix. Plastics are ____________in weight.
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Read morex. Plastics are also known as ____________
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Read moreb) State True or False.
xi. A C arc welding can be used in both straight and reverse polarities.
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xii. Chaplets are used to support cores in mould cavity.
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xiii. Cupola furnace is used to melt huge amount of raw material.
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xiv. Swage block is used to deform the material.
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xv. Plastics are difficult to shape and mould.
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SECTION-B
Q2. Attempt any five questions.
a. List advantages and disadvantages of welding?
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Read moreb. Explain the application of A C and D C welding
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Read morec. What is a pattern? What are its functions?
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Read mored. Differentiate between bench moulding and floor moulding.
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Read moree. What is the function of riser in moulding.
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Read moref. What is hot and cold extrusion?
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Read moreg. What are the basic types of plastics?
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Read moreSECTION-C
Q3. Attempt any three questions.
i. What is ultrasonic welding? Give its advantages and applications
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Read moreii. Explain various types of gas welding flames with neat sketch.
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Read moreiii. What are common allowances provided on pattern and why?
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Read moreiv. Explain various types of moulding process
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Read morev. What is press working? Explain various press operations.
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Read more