Page 43 - Fundamental of Engineering Design
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Typical human behavior






        1.      People are often reluctant to admit errors


        2.      People usually perform task while thinking about other things


        3.      People frequently misread or overlook instructions and labels


        4.      People often respond irrationally in emergency


        5.      A signification percentage of people become complacent after
                successfully handling dangerous item over a long period of time


        6.      Most people fail to recheck outlined procedures for errors


        7.      People are generally poor estimators of speed, clearance or
                distance. They frequently overestimate short distance and

                underestimate large distance.


        8.      People are generally too impatient to take the time need to

                observe


        9.      People are often reluctant to admit that they cannot see object
                well, due either too poor eyesight or to inadequate illumination.

                They generally use their hand examine or testing                                                                    43
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