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WorksheetsManufacturing Processes and Materials – MCQ Worksheet
Total questions: 51
Worksheet time: 26mins
Designation "E6010" indicates that?
Minimum tensile strength of weld metal is 60 psi
Maximum tensile strength of weld metal is 60 psi
Minimum tensile strength of electrode is 60 psi
Maximum tensile strength of electrode is 60 psi
Carbon content in medium carbon steel is?
0.2% – 0.5%
0.2% – 0.6%
0.3% – 0.6%
0.3% – 0.77%
What is correct statement in climb milling (down milling)?
Maximum chip thickness at the end of the cut
Workpiece has a tendency to be pulled upward
Maximum chip thickness at the beginning of the cut
Cutting process is smooth
The thread can not be produced by?
Taps
Milling cutter
Chasers
Cutting tool of the lathe
What is correct statement in conventional milling?
Maximum chip thickness at the end of the cut
Cutting force holds the workpiece in place
Impact forces when the teeth engage
Maximum chip thickness at the beginning of the cut
Filler metals used for brazing typically melt above?
150°C
450°C
1150°C
1600°C
Brass is an alloy of?
Copper and tin
Copper and zinc
Copper and silicon
Copper and aluminum
Which welding process uses the pressure?
Friction welding
MAG
TIG
SAW
Which machining process uses that workpiece is mounted on a table that travels back and forth along a straight path?
Shaping
Planing
Milling
Turning
What method is used to measure particle size of metal powder?
Measuring instrument
Screening through sieves
Electricity meter
Gauge
Which type of mold uses the pattern that is made of wax?
Sand mold
Evaporate pattern mold
Investment mold
b and c
Annealing can be used to?
Reduce ductility
Reduce hardness
Relieve residual stresses
b and c
How many times are patterns made of wood used?
One time
Two times
Three times
Many times
What does heat treatment modify?
Chemical component
Microstructure
Macrostructure
b and c
What is correct statement in the interstitial solid solutions if we call A is the size of solute atom and B is the size of solvent atom?
A is much smaller than B
A is much larger than B
A is similar to B
a and c
How many types of aluminium alloys are there?
2
3
4
5
Tempering can be used to?
Increase ductility
Increase brittleness
Increase residual stresses
a and c
Which factor is not mechanical property of materials?
Elongation
Melting point
Heat treatment
b and c
What is the range of cross-sectional area reduction per pass for larger wires in drawing?
5% ÷ 45%
15% ÷ 25%
20% ÷ 45%
30% ÷ 65%
What does 1080 steel designation following AISI standard indicate?
C = 0.1%
C = 1%
C = 0.08%
C = 0.8%
In which case we can obtain martensite in steels?
Annealing
Quenching with low cooling rate
Quenching
Quenching with high cooling rate
For which material is plaster mold casting used?
Steels
Aluminium
Cast iron
Steel alloys
For which material is ceramic mold casting used?
Stainless steels
Cast iron
Tool steels
a and c
What is advantage of cold extrusion in comparison with hot extrusion?
Worse tolerances
Better tolerances
Better surface finish
b and c
Which material is thermoplastic?
Epoxy
Phenolic
Polyurethane
Polyethylene
Which casting process can give castings with many layers of various metals?
Centrifugal casting
Vacuum casting
Investment casting
Pressure casting mold
There are how many types of cast iron presented in the lecture?
3
4
5
6
What process leaves a tab without removing any material?
Lancing
Blanking
Parting
Notching
Which property is structure sensitive?
Melting point
Specific heat
Yield strength
Coefficient of thermal expansion
By which is the interior surface of the casting is defined?
Mold
Core
Pattern
Cavity
Which factor is physical property of materials?
Melting point
Stiffness
Electrical conductivity
a and c
Which forging process does not form flash?
Open die forging
Closed die forging
Which factor in the following factors is a mechanical property of materials? Select all that apply.
Heat resistance
Strength
Toughness
When may continuous chips be formed in cutting?
Very low cutting speeds
Brittle materials
High cutting speeds
Which component supports all major components of the lathe?
Carriage
Tailstock
Headstock
Bed
Which carbon content may give eutectic structure of the iron–carbon system?
0.77%
2.11%
4.3%
6.67%
What is the correct statement in interstitial solid solutions (A is the size of the solute atom and B is the size of the solvent atom)?
A is much smaller than B
A is much larger than B
A is similar to B
On which does extrusion force depend? Select all that apply.
Strength of the billet material
The extrusion ratio
Speed of extrusion
What is the maximum carbon content in steels?
0.77%
2.11%
4.3%
6.67%
Cutting fluids are used in machining operations to achieve which of the following? Select all that apply.
Reduce friction
Cool the cutting zone
Increase cutting forces
What is the correct statement in roughing cuts?
Low feed rates
High feed rates
Low depths of cut
Which factor is a physical property of materials? Select all that apply.
Density
Toughness
Hardness
Annealing can be used to do which of the following?
Reduce ductility
Increase hardness
Relieve residual stresses
What is the correct statement in three-jaw chucks?
Jaw self-centering
Jaws moved independently
Used for rectangular workpieces
Which factor in the following factors is not a mechanical property of materials?
Resistance of wear
Hardness
Thermal conductivity
What is the correct statement in four-jaw chucks? Select all that apply.
Jaws self-centering
Jaws moved independently
Used for rectangular workpieces
Which casting process cannot produce a hollow part without a core?
Sand mold casting
Slush casting
Permanent mold casting
Pressure die casting
Which type of mold has no parting line?
Sand mold
Evaporative pattern mold
Ceramic mold
a and c
The external thread can be produced by which of the following processes?
Chaser
Tap
Milling cutter
Die
Which statement is correct in laser beam welding?
The beams generate x-ray
The beams do not generate x-ray
A vacuum is required
The quality of the weld is worse than that in electron beam welding
Threads cannot be produced by which of the following?
Tap
Milling cutter
Chaser
Cutting tool of the lathe
