Reference no: EM13701759
Question 1:
Two low-carbon steel plates of 10-mm thickness are butt-joined by fusion welding.
Make sketches to show the expected weld bead geometry (in cross section) and the width of the HAZ with:
a) Oxyacetylene,
b) Electron beam
c) Shielded metal arc
d) Plasma arc welding
Question 2:
Draw a sketch to show the basic design for preparing the edges of two 20-mm thick plates to be butt-joined by shielded metal arc welding with:
a) One sided access
b) Two sided access
c) Which of the two will be (relatively) free of distortion?
Question 3:
Given: Your company produces copper-clad steel sheet by hot roll bonding. A customer complains that the cladding separated during deep drawing.
Question: You are asked to investigate your company's procedure to make the sheet and identify possible problems. List the likely process steps and problem areas.
Question 4:
Given: It is claimed that elevated temperature is essential for creating a metallic bond in rolling a sandwich of base metal plate and two cover plates.
Question: Do you agree? Justify.
Question 5:
Given: A good weld of two 20-mm-thick steel plates is made by gas metal-arc welding .
Question: a) make a sketch of the weld bead b) suggest inspection methods for ascertaining quality of the weld.
Question 6:
Given: Many bicycle frames are constructed of steel tubing joined to hollow fittings.
Find:
a) Suggest a way of joining the tubes.
b) Define the process
c) Make a sketch of a joint and indicate critical features.
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All devices have the same amount of energy
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Pretend that you are participating in a public safety awaren
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Show the basic design for preparing the edges
: Draw a sketch to show the basic design for preparing the edges of two 20-mm thick plates to be butt-joined by shielded metal arc welding with One sided access
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: A window-mounted room air conditioner removes energy by heat transfer from a room and rejects energy by heat transfer to the outside air. The air conditioner cycle requires a power input of 0.434 kW and has a coefficient of performance of 6.22.
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: A particle traveled in a straight line in such a way that its distance (S) from a given point on that line after time (t) was S= 20t^3 -t^4 The rate of change of acceleration at time t=2 is what value?
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An adiabatic piston cylinder contains
: An adiabatic piston cylinder contains 1 kg of R-134a. Initially the conditions inside the piston are 200 kPa and 0 degrees C. An electric heater inside the device runs with constant voltage of 110 V and a constant 0.1A of current for one hour.
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