Technical Test For Medical Device Components【basic】
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Questions and Answers
- 1.
How would rigidity (stiffness performance) change if number of filar of ACTONE is increased with same ID & OD?
- A.
Decrease
- B.
Increase
- C.
No change
Correct Answer
B. IncreaseExplanation
If the number of filar of ACTONE is increased while keeping the same ID (inner diameter) and OD (outer diameter), the rigidity or stiffness performance of ACTONE would increase. This is because adding more filar increases the overall cross-sectional area of the material, making it stiffer and more resistant to deformation. Therefore, increasing the number of filar would result in an increase in rigidity or stiffness performance.Rate this question:
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- 2.
How would torque performance generally change when Radius Bend is small ?
- A.
Become worse
- B.
Become better
- C.
No change
Correct Answer
A. Become worseExplanation
When the radius bend is small, the torque performance generally becomes worse. This is because a smaller radius bend creates a tighter curve, which increases the resistance and friction in the system. This increased resistance hinders the smooth flow of torque, leading to a decrease in overall performance.Rate this question:
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- 3.
Customer desires to make ACTONE less rigid while keeping same ID and OD. What would you tell them?
- A.
We cannot make less rigid and more
- B.
Let’s decrease number of filar
- C.
Let’s increase number of filar
Correct Answer
B. Let’s decrease number of filarExplanation
By decreasing the number of filar, the overall rigidity of ACTONE can be reduced while maintaining the same internal diameter (ID) and outer diameter (OD). This means that the structure will become less rigid without compromising its size specifications.Rate this question:
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- 4.
ACTONE can be made of SS304 and SS316. How torque performance and rigidity would differ?
- A.
SS304 has better torque and lower rigidly
- B.
SS316 has better torque and higher rigidity
- C.
No above
Correct Answer
C. No above -
- 5.
Customer desires to improve surface friction performance of torque coil. What would you tell them?
- A.
We will do PTFE coating, it would not affect torque performance
- B.
We will do PTFE coating, however, it would affect torque performance
- C.
We will do PTFE coating, torque performance would be better
Correct Answer
B. We will do PTFE coating, however, it would affect torque performanceExplanation
The correct answer suggests that while PTFE coating can be done to improve the surface friction performance of the torque coil, it would have an impact on the torque performance. This implies that the coating may reduce the torque performance of the coil, but it is still an option for the customer to consider if they prioritize surface friction improvement over torque performance.Rate this question:
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- 6.
Which ACTONE tends to get wires frayed?
- A.
More filar count
- B.
Less filar count
- C.
No impact (the same)
Correct Answer
A. More filar countExplanation
A higher filar count in an ACTONE tends to result in more wires being packed closely together. This increases the likelihood of friction and rubbing between the wires, which can lead to fraying over time. Therefore, the correct answer is "More filar count."Rate this question:
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- 7.
Customer would like to know if ACTONE’s performance changes in case, they change the pitch wider. What would you tell them?
- A.
We cannot change pitch.
- B.
Rigidity gets higher, tends to get wire frayed and impact torque performance
- C.
Rigidity gets higher, torque performance gets worse and other no impact
Correct Answer
B. Rigidity gets higher, tends to get wire frayed and impact torque performanceExplanation
If the customer changes the pitch wider, the rigidity of ACTONE will increase. As a result, the wire tends to get frayed and the impact torque performance will be affected.Rate this question:
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- 8.
Which wire rope is stiffer 1X7 or 1X19 ?
- A.
1X7
- B.
1X19
- C.
Same
Correct Answer
A. 1X7Explanation
The 1X7 wire rope is stiffer than the 1X19 wire rope. This is because the number before the "X" represents the number of strands in the rope, while the number after the "X" represents the number of wires in each strand. In this case, the 1X7 wire rope has 1 strand with 7 wires, while the 1X19 wire rope has 1 strand with 19 wires. Since the 1X7 wire rope has fewer wires in each strand, it is less flexible and therefore stiffer compared to the 1X19 wire rope.Rate this question:
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- 9.
Which are correct chemical components for SS304 ?
- A.
Cr, Ni, Mo, Fe
- B.
Cr, Ni, Si, Fe
- C.
Cr, Ni, Ti, Al
Correct Answer
B. Cr, Ni, Si, FeExplanation
SS304 refers to a specific type of stainless steel that contains chromium (Cr), nickel (Ni), silicon (Si), and iron (Fe) as its chemical components. These elements contribute to the steel's corrosion resistance, strength, and durability. Titanium (Ti) and aluminum (Al) are not typically included in the composition of SS304.Rate this question:
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- 10.
Metal Strength: －What is the area that returns to former shape after releasing the load on the Stress Strain Diagram?
- A.
Plastic area
- B.
Metal area
- C.
Non-metal area
- D.
Elastic area
Correct Answer
D. Elastic areaExplanation
The area that returns to its former shape after releasing the load on the Stress Strain Diagram is called the elastic area. This is because, in this region, the material is able to deform elastically, meaning it can undergo temporary deformation and then return to its original shape once the load is removed.Rate this question:
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- 11.
Metal Strength: What is the name of the point that does not increase the load but increase the strain on the Stress Strain Diagram?
- A.
Breaking point
- B.
Yield point
- C.
Proportion point
- D.
Lower point
Correct Answer
B. Yield pointExplanation
The yield point is the name of the point on the stress-strain diagram where the material starts to deform plastically, meaning it does not return to its original shape after the load is removed. At this point, the material has reached its maximum stress without breaking, and further increase in strain occurs with little to no increase in load. Therefore, the yield point does not increase the load but increases the strain on the stress-strain diagram.Rate this question:
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- 12.
SS316 is adding the element of _______to SS304.
- A.
Carbon
- B.
Oxygen
- C.
Molybdenum
- D.
Hydrogen
Correct Answer
C. MolybdenumExplanation
SS316 is adding the element of molybdenum to SS304. Molybdenum is added to stainless steel to enhance its corrosion resistance, particularly in environments with high chloride content. It also improves the strength and toughness of the steel, making it more suitable for applications in harsh conditions. Therefore, the addition of molybdenum to SS304 in SS316 helps to improve its overall performance and durability.Rate this question:
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- 13.
How do you calculate the tensile strength?
- A.
Breaking load/OD
- B.
Breaking load /Length
- C.
Breaking load /Section area
Correct Answer
C. Breaking load /Section areaExplanation
The correct answer is "Breaking load /Section area". Tensile strength is calculated by dividing the breaking load (the maximum load a material can withstand before breaking) by the cross-sectional area of the material. This calculation gives an indication of the material's ability to resist being pulled apart or stretched. By dividing the breaking load by the section area, we can determine the amount of force the material can withstand per unit area, which is the tensile strength.Rate this question:
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- 14.
Which one has the most elongation?
- A.
Torque Coil
- B.
Conventional Coil (Regular Coil)
- C.
Flat Wire Coil
Correct Answer
B. Conventional Coil (Regular Coil)Explanation
The conventional coil (regular coil) has the most elongation compared to the torque coil and flat wire coil. This is because the conventional coil is designed with a regular, circular shape, allowing for more flexibility and stretchability. On the other hand, the torque coil is specifically designed to resist twisting forces, so it has less elongation. The flat wire coil, as the name suggests, is made of flat wire which limits its ability to elongate compared to the conventional coil.Rate this question:
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- 15.
Which one has the highest rigidity if OD is same?
- A.
Core Wire
- B.
Flat Wire Coil
- C.
ACTONE Swaging
Correct Answer
A. Core WireExplanation
Core Wire has the highest rigidity if OD (outer diameter) is the same. Rigidity refers to the ability of a material to resist deformation under stress. Since the question states that the OD is the same for all options, the answer suggests that the Core Wire has a higher resistance to deformation compared to the other options. This could be due to the specific composition or design of the Core Wire, which allows it to maintain its shape and structural integrity better than the Flat Wire Coil or ACTONE Swaging.Rate this question:
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- 16.
Which wire rope has the highest rigidity if OD is same for all below?
- A.
１×3
- B.
1×7
- C.
1×19
Correct Answer
A. １×3Explanation
The rigidity of a wire rope is determined by the number of strands and the number of wires per strand. In this case, all three options have the same outer diameter (OD), but the 1x3 wire rope has the highest rigidity because it has only one strand with three wires. The 1x7 wire rope has one strand with seven wires, and the 1x19 wire rope has one strand with nineteen wires. Therefore, the 1x3 wire rope is the most rigid among the three options.Rate this question:
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- 17.
Please choose the most appropriate grinding rate in regards to the center-less grinding for ACTONE.
- A.
30－40％
- B.
10－20％
- C.
50－60％
Correct Answer
A. 30－40％Explanation
The most appropriate grinding rate for ACTONE in regards to center-less grinding is 30-40%. This range ensures that the grinding process is efficient and effective, allowing for the desired level of precision and surface finish to be achieved. Grinding rates below this range may result in inadequate material removal, while rates above this range may lead to excessive heat generation and potential damage to the workpiece. Therefore, selecting a grinding rate within the 30-40% range strikes a balance between productivity and quality.Rate this question:
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- 18.
Which material has the highest tensile strength?
- A.
NITI
- B.
SS
- C.
Platinum
Correct Answer
B. SSExplanation
Stainless steel (SS) has the highest tensile strength among the given options. Stainless steel is a strong and durable material that is commonly used in various industries due to its high tensile strength, corrosion resistance, and ability to withstand extreme temperatures. It is widely used in construction, automotive, and aerospace industries where strength and durability are crucial. Platinum and NITI (Nickel Titanium) may also have high tensile strengths, but they are not as commonly used or known for their tensile strength compared to stainless steel.Rate this question:
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- 19.
Which is the correct combination that GMA can do for compounding of resin ?
- A.
ETFE, PEEK, FEP, Pebax, PE
- B.
ETFE, FEP, Pebax, PE, PTFE
- C.
ETFE, PFA, Polyamide, PU, PE
Correct Answer
C. ETFE, PFA, Polyamide, PU, PE -
- 20.
Which are 3 materials that can be used for Single Lumen tube in GMA ?
- A.
Nylon, PTFE, PU
- B.
PE, PU, ETFE
- C.
PU, PE, PTFE
Correct Answer
B. PE, PU, ETFE -
- 21.
Which coatings are available for ACTONE, TQC in GMA ?
- A.
PE, Pebax, PTFE
- B.
PU, Pabox, PE
- C.
PTFE, PA, Pebax
Correct Answer
B. PU, Pabox, PEExplanation
The available coatings for ACTONE, TQC in GMA are PU, Pabox, and PE.Rate this question:
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- 22.
Which is the correct answer regarding GMA's PTFE thin layer tube ?
- A.
The thickness is 16-24 (both side) micron, coated by extrusion and shipped as cut product.
- B.
The thickness is 5-100 (both side) micron, coated by dipping method and shipped as spool.
- C.
The thickness is 16-24 (both side) micron, coated by dipping method and shipped as spool.
Correct Answer
C. The thickness is 16-24 (both side) micron, coated by dipping method and shipped as spool.Explanation
The correct answer is that the thickness of GMA's PTFE thin layer tube is 16-24 (both side) micron, coated by dipping method, and shipped as a spool.Rate this question:
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- 23.
Which is the correct answer regarding GMA's PTFE tube ?
- A.
It is manufactured in extrusion and the coating for ACTONE is availble.
- B.
It is not manufactured in GMA and manufactured by the other facility.
- C.
It is manufactured in extrusion and maily used as material for micro catheter.
Correct Answer
B. It is not manufactured in GMA and manufactured by the other facility.Explanation
The correct answer is "It is not manufactured in GMA and manufactured by the other facility." This means that GMA does not produce the PTFE tube and it is made by another facility.Rate this question:
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.png "Metal Strength: What is the name of the point that does not increase the load but increase the strain on the Stress Strain Diagram?")
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Current Version
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Mar 17, 2023Quiz Edited by
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Feb 24, 2014Quiz Created by
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