Machine Design The arms of the pulleys for flat belt drive have All the three characteristics Major axis twice the minor axis Elliptical cross-section Major axis in plane of rotation All the three characteristics Major axis twice the minor axis Elliptical cross-section Major axis in plane of rotation ANSWER DOWNLOAD EXAMIANS APP
Machine Design Stress concentration is caused due to Variation in properties of material from point to point in a member Pitting at points or areas at which loads on a member are applied All of these Abrupt change of section Variation in properties of material from point to point in a member Pitting at points or areas at which loads on a member are applied All of these Abrupt change of section ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to I.B.R., the thickness of the boiler shell should not be less than 6 mm 7 mm 4 mm 5 mm 6 mm 7 mm 4 mm 5 mm ANSWER DOWNLOAD EXAMIANS APP
Machine Design At low temperatures (say 75°C) the notched bar impact value of steel Depends on heat treatment carried out Remain same Decreases markedly Increases markedly Depends on heat treatment carried out Remain same Decreases markedly Increases markedly ANSWER DOWNLOAD EXAMIANS APP
Machine Design Taper usually provided on cotter is 1 in 10 1 in 40 1 in 5 1 in 24 1 in 10 1 in 40 1 in 5 1 in 24 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ratio of belt tensions (p1/p2) considering centrifugal force in flat belt is given by Where m = mass of belt per meter (kg/m) v = belt velocity (m/s) f = coefficient of friction a = angle of wrap (radians) P1 / P2 = e–ᶠα P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα P1 / P2 = e–ᶠα P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS