NTRODUCTION Flashcards
- The designers should have the knowledge of the analytical design process which is essential in the design of machine components, main frames, mounting arrangement, balancing, etc. - The designers must integrate analytical design and results of experimental investigation to develop machines that are simple to fabricate, affordable, light in weights, easy to maintain, and require readily available and low cost materials. - The designer should also have the knowledge regarding the level of manufacturing skills, processes, viability, and cost of materials in order to have a simple machines that could be locally manufactured. - The design of agricultural machines should involved a multi-disciplinary approach that involves product design, development, testing and evaluation, and modification prior to commercialization.
TRUE
Highly innovative and cross-disciplinary
process that uses the most acceptable,
aesthetic, efficiency, and economical
means to satisfy people’s need.
Designing
Process of organizing the methodology needed to proceed from concept to final product, determining which technological resources to use, the economics of production and operation, and the human and social factors that will be needed.
Philosophy of Design
Classification of design carried out using
mathematical formula and other
engineering principles.
Rational Design
Design classification that is based upon
empirical formula derived from existing
practices and past experiences.
Empirical Design
In this design classification, problems
can be solved with ordinary training.
Adoptive Design
Design classification that involved
considerations related to aesthetics,
ergonomics, and production aspects.
Industrial Design
Design classification that does not
exist before and it is only done by few
dedicated designers who have personal
qualities of a sufficiently high order.
Original Design
Design classification that is more
concerned of the adoption of existing
designs and does not demand special
knowledge or skills.
Adoptive Design
Design classification that begins with
an existing design but the final result
may quite differ from the initial product.
Development Design
This design classification requires
lots of research, experimental activities,
and creative brain.
Original Design
Engineering principles that need to be applied in designing agricultural machines include \_\_\_\_. a. laws of mechanics b. strength of materials c. fluid flow, heat transfer, etc. d. All of the above
All of the above
Design of agricultural machines should involve multi-disciplinary approach to include \_\_\_\_. a. product design and development b. testing and evaluation c. modification prior to pilot testing and commercialization d. All of the above
All of the above
In designing agricultural machines, the
designer needs to ____.
a. have a thorough understanding of the
variables related to field conditions and
other factors that influence the
performance of the machinery
b. apply engineering principles in order to
meet functional requirements of a certain
machine
c. have thorough knowledge on the
analytical design process and must
integrate analytical design and results of
experimental investigation
d. All of the above
All of the above
Those who employ agents of technological skills and facility and make use of their creative energies to bring about some sort of advantages that are useful to man.
Designers
Designer must possess ____ level of
manufacturing skills and knowledge on
processes, viability and cost of materials.
certain
Designer must see to it that the machine he designed should be \_\_\_\_ to farmers. a. operationally reliable b. economically acceptable c. Both a & b d. None of the above
Both a & b
Which of the following is not a quality of a good designer? a. Imaginative power and good memory. b. Highly developed intellectual power. c. Ability to work thoroughly and conscientiously d. None of the above
None of the above
Which of the following is a quality of a good designer? a. Inventive talent and good judgment b. Integrity and ability to concentrate c. Sense of responsibility and selfconfidence d. All of the above
All of the above
When more strength is provided as
extra margin of insurance against parts
failure, it is referred to as ____.
Factor of safety
Factor of Safety in engineering science refers to \_\_\_\_. a. the excess amount of materials designed into a machine to ensure that it does not break down b. the ratio of the ultimate strength of a material or component to the working stress it is expected to be subjected to c. the safety of workers in the factory d. None of the above
he ratio of the ultimate strength of a
material or component to the working
stress it is expected to be subjected to
If a large factor of safety is used in
the design, the product will become ___.
expensive
If a large factor of safety is used in
the design, the product will become ___.
expensive
Standards are used in the design basically to\_\_\_\_. a. reduce the cost of the product b. minimize potential liability in designing a product c. provide easy mechanism for interchanging machinery parts d. All of the above
All of the above
