41⟩ Which among the following exhibits a contributory role in an invention of CDMA system? a. Unicomm b. Dualcomm c. Qualcomm d. Pentacomm
c. Qualcomm
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“Physical Product Designer related Frequently Asked Questions by expert members with job experience as Physical Product Designer. These questions and answers will help you strengthen your technical skills, prepare for the new job interview and quickly revise your concepts”
66 Physical Product Designer Questions And Answers
42⟩ The chemical properties of a good product material are a) oxidation b) corrosion c) surface treatment d) all of the mentioned
d) all of the mentioned
Explanation: Chemical properties of primary concern in manufacturing are susceptibility to oxidation and corrosion and to the various surface-treatment processes.
43⟩ Life-cycle engineering is also called a) green design b) expensive design c) easy design d) none of the mentioned
a) green design
Explanation: The major aim of life-cycle engineering (LCE) is to consider reusing and recycling the components of a product, beginning with the earliest stage: product design. Life-cycle engineering is also called green design or green engineering.
44⟩ Designs are periodically modified to, a) improve product performance b) strive for zero-based rejection and waste c) make products easier and faster to manufacture d) all of the mentioned
d) all of the mentioned
Explanation: Designs are periodically modified to
a) Improve product performance
b) Strive for zero-based rejection and waste
c) Make products easier and faster to manufacture
d) Consider new materials and processes that are continually being developed.
45⟩ The mechanical properties of a good product material are a) strength b) toughness c) ductility d) all of the mentioned
d) all of the mentioned
Explanation: Mechanical properties include strength, toughness, ductility, stiffness, hardness, and resistance to fatigue, creep, and impact.
46⟩ Which among the below mentioned packages does not belong to the category of 'Small Outline Package'? a. SO b. SOP c. SOT d. SON
d. SON
47⟩ High current circuits are purposely located or placed near the edge of PCB in accordance to the supply lines for ________ a. Removal of heat b. Isolation of stray current c. Reduction of path length d. All of the above
a. Removal of heat
48⟩ Properties of workpiece materials are a) geometric features of the part b) production rate and quantity c) process selection consideration d) all of the mentioned
d) all of the mentioned
49⟩ The expected qualities of a product are a) it satisfies the needs and expectations of the customer b) it has a pleasing appearance and handles well c) it has high reliability and functions safely over its intended life d) all of the mentioned
d) all of the mentioned
Explanation: Generally, however, a high-quality product is considered to have at least the following characteristics:
a) it satisfies the needs and expectations of the customer
b) it has a pleasing appearance and handles well
c) it has high reliability and functions safely over its intended life
d) it is compatible with and responsive to the customer’s capabilities and working environment
e) installation, maintenance, and future improvements are easy to perform and at low cost.
50⟩ Which among the below mentioned approaches belongs to the category of In-circuit Testing? a. Impedance Testing b. Component Testing c. Apply Signal and check output d. All of the above
d. All of the above
51⟩ Considerations of costing systems are a) life cycle costs b) machine usage c) cost of purchasing machinery d) all of the mentioned
d) all of the mentioned
Explanation: Costing Systems, also called cost justification, typically include the following considerations: (a) intangible benefits of quality improvements and inventory reduction, (b) life-cycle costs, (c) machine usage, (d) cost of purchasing machinery compared with that of leasing it, (e) financial risks involved in implementing highly automated systems, and (f) new technologies and their impact on products.
52⟩ The life cycle of a product includes a. extraction of natural resources b. processing of raw materials c. manufacturing of products d) all of the mentioned
d) all of the mentioned
Explanation: The life cycle involves consecutive and interlinked stages of a product or a service, from the very beginning to its disposal or recycling, and includes the following:
a) extraction of natural resources
b) processing of raw materials
c) manufacturing of products
d) transportation and distribution of the product to the customer
e) use, maintenance, and reuse of the product
f) recovery, recycling, and reuse of the components of the product.
53⟩ Sustainable manufacturing is required for a) conserving resources b) proper maintenance c) reuse d) all of the mentioned
d) all of the mentioned
Explanation: The concept of sustainable manufacturing emphasizes the need for conserving resources, particularly through proper maintenance and reuse.
54⟩ Which type of solderability testing is carried out for the generation of solder sample due to immersion of wire or sheet metal specimen in a bath of molten solder? a. Solder Bath Testing b. Meniscus Rise Testing c. Solder Iron Testing d. None of the above
b. Meniscus Rise Testing
55⟩ Which among the following can be used to analyze the frequency response of a room? a. Spectrum Analyzer b. Pink Noise Generator c. Both a and b d. None of the above
c. Both a and b
56⟩ The physical properties of a good product material are a) density b) melting point c) specific heat d) all of the mentioned
d) all of the mentioned
Explanation: Physical properties include density, melting point, specific heat, thermal and electrical conductivity, thermal expansion, and magnetic properties.
57⟩ Which compression coding scheme of vocoder in GSM has a provision of 13 kbps voice bit stream by allowing the transmission of eight telephone calls concurrently in a single 200-ku-wide channel? a. Regular Pulse Excitation Linear Predictive Coding b. Residual Excited Linear Predictive Coding c. Both a and b d. None of the above
Both
a. Regular Pulse Excitation Linear Predictive Coding
b. Residual Excited Linear Predictive Coding
58⟩ Tell us what are the differences between hardness, strength and stiffness?
Understanding mechanical loads and being able to choose the most suitable materials and design structures in response requires the theoretical and practical knowledge of physics. If you are planning to outsource design services, you can test candidates by asking them to define the difference between strength, stiffness and hardness. If they are unable to do that it is best not to proceed no matter how simple the product is. Technical understanding is the backbone of good plastic design, but it is worthless without the ability to apply it in practice.
59⟩ Tell us what are the strengths and limitations of the plastics I use?
The spectrum of different plastic grades seems not only confusing but also indefinite. If you look at the plastic components produced by an average company, however, it is likely that 95% of them are made of roughly 8-12 different plastic grades. The understanding of different materials begins with comprehending the difference between amorphous and semi-crystalline plastics. Knowing the strengths and limitations of 5-8 different of each will take you quite far. Which ones they are depends on the business area you are in. Seen from this angle, the world of plastics is not as complicated as it may seem.
60⟩ Explain me about a project that you’re most proud of?
This is a tricky question because it puts candidates at ease, which, in turn lets the interviewer ask follow-up questions that dig into process, thinking, and interactions with other team members. It allows the interviewer to assess the candidate’s depth and skill without directly asking about it. As a result, it’s best to keep your answer truthful and clear. Don’t exaggerate your contribution to a project.
