Machine Design Failure of a material is called fatigue when it fails Below the yield point At the elastic limit At the yield point Below the elastic limit Below the yield point At the elastic limit At the yield point Below the elastic limit ANSWER DOWNLOAD EXAMIANS APP
Machine Design A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be 3.5 2.5 3.0 2.8 3.5 2.5 3.0 2.8 ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a machine member is subjected to torsion, the torsional shear stress set up in the member is Maximum at both the centroidal axis and outer surface of the member Zero at both the centroidal axis and outer surface of the member Zero at the centroidal axis and maximum at the outer surface of the member Maximum at the centroidal axis and zero at the outer surface of the member Maximum at both the centroidal axis and outer surface of the member Zero at both the centroidal axis and outer surface of the member Zero at the centroidal axis and maximum at the outer surface of the member Maximum at the centroidal axis and zero at the outer surface of the member ANSWER DOWNLOAD EXAMIANS APP
Machine Design Plastic flow in ductile materials Increases the seriousness of static loading stress concentration Has no effect on it Depends on other considerations Lessens the seriousness of static loading stress concentration Increases the seriousness of static loading stress concentration Has no effect on it Depends on other considerations Lessens the seriousness of static loading stress concentration ANSWER DOWNLOAD EXAMIANS APP
Machine Design When carbon in the cast iron is principally in the form of graphite, the cast iron will be of Brown colour White colour Yellow colour Grey colour Brown colour White colour Yellow colour Grey colour ANSWER DOWNLOAD EXAMIANS APP
Machine Design If d is the normal diameter of a bolt in mm, then the initial tension in kg in a bolt used for making a fluid tight joint as for steam engine cover joint is calculated by the relation 124 d 138 d 151 d 168 d 124 d 138 d 151 d 168 d ANSWER DOWNLOAD EXAMIANS APP
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