Mechanical advantage occurs when a weight in one place lifts a heavier weight in another place.
Answer the following statement true (T) or false (F)
True
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Materials that are thick, are round, or have surfaces covered with rust, paint, oil, and so on, require less preheat flame.
Answer the following statement true (T) or false (F)
?In a four stroke, four cylinder engine, how many degrees must the crankshaft turn before the next cylinder in the firing order is fired?
What will be an ideal response?
Computer Study—comparison of approximate analysis with an exact analysis.
(a) Use approximate analysis to compute the reactions and draw the moment diagrams for
column AB and girder BC of the frame in Figure P13.20, and draw the deflected shape.
Consider column bases are fixed. (b) Repeat the computations with pinned column bases at
A and D. (c) Compare the results with the exact analysis using a computer software.
Which of the following statements about work gloves is not true?
a. They should be worn whenever hand injuries are possible. b. The size of the gloves does not matter. c. They should be removed when working with rotating machinery. d. They are considered personal protective equipment.