Engineering Questions with Answers - Multiple Choice Questions
Manufacturing Engineering – Product Design And Process Selection
1 - Question
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
View Answer
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.
2 - Question
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
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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.
3 - Question
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
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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.
4 - Question
Life-cycle engineering is also called
a) green design
b) expensive design
c) easy design
d) none of the mentioned
View Answer
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.
5 - Question
Sustainable manufacturing is required for
a) conserving resources
b) proper maintenance
c) reuse
d) all of the mentioned
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Explanation: The concept of sustainable manufacturing emphasizes the need for conserving resources, particularly through proper maintenance and reuse.
6 - Question
The mechanical properties of good product material are
a) strength
b) toughness
c) ductility
d) all of the mentioned
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Explanation: Mechanical properties include strength, toughness, ductility, stiffness, hardness, and resistance to fatigue, creep, and impact.
7 - Question
The physical properties of good product material are
a) density
b) melting point
c) specific heat
d) all of the mentioned
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Explanation: Physical properties include density, melting point, specific heat, thermal and electrical conductivity, thermal expansion, and magnetic properties.
8 - Question
The chemical properties of good product material are
a) oxidation
b) corrosion
c) surface treatment
d) all of the mentioned
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Explanation: Chemical properties of primary concern in manufacturing are susceptibility to oxidation and corrosion and to the various surface-treatment processes.
9 - Question
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
View Answer
Explanation: None.
10 - Question
Considerations of costing systems are
a) life cycle costs
b) machine usage
c) cost of purchasing machinery
d) all of the mentioned
View Answer
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.