Manufacturing Process
161 Questions
| Attempts: 259
Manufacturing Process
Questions and Answers
- 1.
The most common sizes of lathes are 9 to 30 inch swing with a capacity of 16 inches to 12 feet between centers.
- A.
True
- B.
False
Correct Answer
A. True -
- 2.
The carriage is a heavy, rugged casting made to support the working parts of the lathe.
- A.
True
- B.
False
Correct Answer
B. False -
- 3.
On a lathe, the headstock is clamped on the right-hand side of the bed.
- A.
True
- B.
False
Correct Answer
B. False -
- 4.
The tailstock is used to move the cutting tool along the lathe bed.
- A.
True
- B.
False
Correct Answer
B. False -
- 5.
On a geared-head lathe various speeds are obtained by changing the flat belt and the back gear drive.
- A.
True
- B.
False
Correct Answer
B. False -
- 6.
The apron handwheel usually moves the carriage by means of rack and pinion gear.
- A.
True
- B.
False
Correct Answer
A. True -
- 7.
The quick-change gearbox provides the drive for the lead screw and feed rod.
- A.
True
- B.
False
Correct Answer
A. True -
- 8.
A shear pin in the end gear train prevents damage to the gears in case of an overload.
- A.
True
- B.
False
Correct Answer
A. True -
- 9.
The quick-change gearbox obtains its drive from the headstock spindle through the end gear train.
- A.
True
- B.
False
Correct Answer
A. True -
- 10.
The compound rest may be rotated at any angle.
- A.
True
- B.
False
Correct Answer
A. True -
- 11.
The value of one graduation on a metric-graduated micrometer collar is .05 mm.
- A.
True
- B.
False
Correct Answer
B. False -
- 12.
Cutting speed is the rate at which a point on the work radius passes the cutting tool in one minute.
- A.
True
- B.
False
Correct Answer
B. False -
- 13.
Feed is the distance the cutting tool travels in one minute.
- A.
True
- B.
False
Correct Answer
B. False -
- 14.
The r/min for rough turning a 2-inch diameter piece of machine steel (CS90) using a high-speed steel tool bit is 90 r/min.
- A.
True
- B.
False
Correct Answer
B. False -
- 15.
The r/min for finish turning a 2-inch diameter bronze shaft (CS100) using a high-speed tool bit is 200 r/min.
- A.
True
- B.
False
Correct Answer
A. True -
- 16.
The r/min for rough turning a 2-inch diameter aluminum shaft (CS200) using a high-speed tool bit is 400 r/min.
- A.
True
- B.
False
Correct Answer
A. True -
- 17.
The r/min for finish turning a 4-inch diameter machine steel shaft (CS100) using a high-speed tool bit is 200 r/min.
- A.
True
- B.
False
Correct Answer
B. False -
- 18.
When the diameter of as workpiece must be turned to an accurate size, graduated micrometer collars should be used.
- A.
True
- B.
False
Correct Answer
A. True -
- 19.
When setting the depth of the cut, the graduated collar should be held firmly.
- A.
True
- B.
False
Correct Answer
B. False -
- 20.
When accurate diameters must be machined in a lathe the compound rest should be set to 84 degrees, 16 minutes.
- A.
True
- B.
False
Correct Answer
A. True -
- 21.
When machining round work, rough-turn all diameters to within .01 inches of the required size.
- A.
True
- B.
False
Correct Answer
B. False -
- 22.
.050 inches of material should be left on a flat surface for grinding.
- A.
True
- B.
False
Correct Answer
B. False -
- 23.
When machining flat surfaces, the largest surface should be machined last.
- A.
True
- B.
False
Correct Answer
B. False -
- 24.
The finish diameter is protected from the chuck jaws by placing hard metal between the jaws and the work.
- A.
True
- B.
False
Correct Answer
B. False -
- 25.
It is not advisable to rough turn small diameters first because the work may bend.
- A.
True
- B.
False
Correct Answer
A. True -
- 26.
The work should be cut off longer than required when machining in a chuck in order to allow the part to be held in the chuck.
- A.
True
- B.
False
Correct Answer
A. True -
- 27.
All measurements should be taken from one end of the workpiece in order to prevent accumulative errors.
- A.
True
- B.
False
Correct Answer
A. True -
- 28.
The workpiece should be heated before finish turning in order to ensure accurate measurements.
- A.
True
- B.
False
Correct Answer
B. False -
- 29.
The groove should be cut a little deeper than the major thread diameter for the internal section to be threaded.
- A.
True
- B.
False
Correct Answer
A. True -
- 30.
Work should never extend more than three times the diameter beyond the chuck jaws.
- A.
True
- B.
False
Correct Answer
A. True -
- 31.
Metal expands due to the friction caused by the machining process.
- A.
True
- B.
False
Correct Answer
A. True -
- 32.
A built-up edge is a layer of compressed metal from the material being cut, which adheres to and piles up on the face of the cutting tool edge.
- A.
True
- B.
False
Correct Answer
A. True -
- 33.
The working zone is the area in which the work material is deformed during cutting.
- A.
True
- B.
False
Correct Answer
B. False -
- 34.
The cutting tool interface is that portion of the face of the cutting tool on which the chip slides as it is cut from the metal.
- A.
True
- B.
False
Correct Answer
B. False -
- 35.
Crystal elongation is the distortion of the crystal structure of the work material that occurs during a machining operation.
- A.
True
- B.
False
Correct Answer
A. True -
- 36.
Plastic deformation is the deformation of the work material that occurs in the shear zone during a cutting operation.
- A.
True
- B.
False
Correct Answer
A. True -
- 37.
Plastic flow ids the flow of metal that occurs on the shear plane.
- A.
True
- B.
False
Correct Answer
A. True -
- 38.
Discontinuous chips are produced when brittle metals are cut under poor cutting conditions.
- A.
True
- B.
False
Correct Answer
A. True -
- 39.
The type 1 chip is a continuous ribbon produced when the flow of metal next to the tool face is not greatly retarded by a built-up edge or friction at the chip-tool interface.
- A.
True
- B.
False
Correct Answer
B. False -
- 40.
The most desirable type of chip is the discontinuous chip.
- A.
True
- B.
False
Correct Answer
B. False -
- 41.
The shear zone is the angle of the area of material where plastic deformation occurs.
- A.
True
- B.
False
Correct Answer
B. False -
- 42.
One of the methods by which heat is created during machining is metal deflection.
- A.
True
- B.
False
Correct Answer
B. False -
- 43.
A greater amount of pearlite is present in high-carbon steel because of the higher carbon content.
- A.
True
- B.
False
Correct Answer
A. True -
- 44.
White cast iron is cooled slowly after casting.
- A.
True
- B.
False
Correct Answer
B. False -
- 45.
Gray cast iron is cooled rapidly after casting.
- A.
True
- B.
False
Correct Answer
B. False -
- 46.
Pure aluminum is generally easier to machine than most aluminum alloys.
- A.
True
- B.
False
Correct Answer
B. False -
- 47.
Copper has high electrical and thermal conductivity.
- A.
True
- B.
False
Correct Answer
A. True -
- 48.
Bronze is an alloy of copper and zinc.
- A.
True
- B.
False
Correct Answer
B. False -
- 49.
Cement-carbide cutting tools can be used efficiently at temperatures up to 1600 degrees Fahrenheit.
- A.
True
- B.
False
Correct Answer
A. True -
- 50.
Machinability describes the ease or difficulty with which metals can be machined.
- A.
True
- B.
False
Correct Answer
A. True -
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Current Version
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Jan 21, 2013Quiz Edited by
ProProfs Editorial Team -
Dec 05, 2010Quiz Created by
Lmpact
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