Machine Design The initial tension (in newtons) in a bolt used for making a fluid tight joint like steam engine cover joints, is calculated by the relation (where d = Nominal diameter of bolt in mm) 2080 d 1420 d 2840 d 1680 d 2080 d 1420 d 2840 d 1680 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to I.B.R., the thickness of the boiler shell should not be less than 5 mm 4 mm 7 mm 6 mm 5 mm 4 mm 7 mm 6 mm ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following spring is used in mechanical wrist watch? Spiral spring Torsion spring Belleville spring Helical compression spring Spiral spring Torsion spring Belleville spring Helical compression spring ANSWER DOWNLOAD EXAMIANS APP
Machine Design Tensile strength of a mild steel specimen can be roughly predicted from following hardness test Brinell Rockwell Vickers None of these Brinell Rockwell Vickers None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design When two helical springs of equal lengths are arranged to form a cluster spring, then Both A and B is correct Only A is correct Load taken by each spring will be half the total load Shear stress in each spring will be equal Both A and B is correct Only A is correct Load taken by each spring will be half the total load Shear stress in each spring will be equal ANSWER DOWNLOAD EXAMIANS APP
Machine Design A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where σ = Stress for a plate with no hole i.e. nominal stress) σ [1 + (3a/b)] σ [1 + (b/3a)] σ [1 + (b/2a)] σ [1 + (2a/b)] σ [1 + (3a/b)] σ [1 + (b/3a)] σ [1 + (b/2a)] σ [1 + (2a/b)] ANSWER DOWNLOAD EXAMIANS APP
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