ENGINEERING EXPERIMENTS WITH STANDARD
are many similarities and differences between engineering experiments and other
Similarity to Standard Experiments:
There are many aspects of engineering that make
it appropriate to view engineering projects as experiments. The three important
aspects are as follows:
1. Engineering projects , like the standard
experiments, are carried out in partial uncertainties. The uncertainties may
include in the,
ü Design calculation
ü Exact properties of raw materials used
ü Constancies of material processing and
ü Nature of working of final products
2. The final outcomes of engineering projects are
also generally uncertain like those of other experiments For example, a nuclear
reactor may reveal unexpected problems that endangered the surrounding people.
3. Similar to standard experiments, engineering
experiments also requires thorough knowledge about the products at the
pre-production and post-production stages. Thus engineering, like any other
experimentation, requires constant monitoring, alertness, and vigil on the part
of the engineers at every stage of the project.
Contrast with standard experiments:
The study of knowing differences between
engineering and other standard experiments is helpful to the engineers to
realize their special and moral responsibility. Some aspects of these
differences are given bellow:
1. Experimental control:
ü Experimental control is the most important difference between engineering and other standard experiments.
In standard experiments, experimental control involves selecting members for two different groups randomly. The first group members are given the special, experimental treatment, whereas the members of other group are not given that special treatment. Even both the groups are subjected to same environment ; the group that was not given the special treatment is called "control group‟.
ü In engineering experiments, usually there is no
control group. Sometimes the control group is used only when the project is
limited to laboratory experiments.
the engineering experiments involve human beings are experimental subjects. In
fact, clients and customers have more control, as they own the authority of
that project. So here the experimental subjects say clients or end user‘s are
out of experimenter‘s control. In this type, it is not possible to select the
member from various group randomly. Instead the engineers should work with the
available historical and fair data about various groups randomly. Instead, the
engineering should work the available historical and fair data about various
groups that uses the end product.
above discussion also justifies the view of engineering as a social
2. Informed consent:
ü It is know that there is always a strong human
interface in the use of the engineering experiments‘ result; and also the
beneficiaries are invariably humans. Therefore engineering experiments are also
viewed at par the medical experiments.
ü When a medicine or an engineering product is to be tested on a person, then the moral and legal rights is to get ‗informed consent‘ for him.Informed consent consists of two main elements:
1. Knowledge: The human subjects should be given
all the information to make a reasonable decision.
2. Voluntariness: The human subjects should show
their willingness to be a human model voluntarily. The person should not be
forced, deceived, fraud, etc.
ü The manufacturer of the should give all the
information about the potential risks and benefits of their products to their
customers and users.
ü The characteristics of a 'valid consent‘
The informed consent is called as ‗valid
consent‘ when the following three conditions are met:
1. The consent should be given voluntarily and not
2. The consent should be based on all information
needed for the rational person to make reasonable decision.
3. The consentient should be physically and
mentally fit; then he should be major i.e., above 18 years.