Machine Design According to I.B.R., the efficiency of a triple riveted butt joint with double straps of unequal width (5 rivets per pitch length) should be 45 to 60% 70 to 83% 63 to 70% 80 to 90% 45 to 60% 70 to 83% 63 to 70% 80 to 90% ANSWER DOWNLOAD EXAMIANS APP
Machine Design Tearing resistance required to tear off the plate per pitch length is (where p = Pitch of rivets, d = Dia. of rivet hole, and σt = Permissible tensile stress for plate material) (p - d) t.σt p.t.σt p.d.σt (p - d) t.σt p.t.σt p.d.σt ANSWER DOWNLOAD EXAMIANS APP
Machine Design The rolling contact bearings are known as Antifriction bearings Thin lubricated bearings Plastic bearings Thick lubricated bearings Antifriction bearings Thin lubricated bearings Plastic bearings Thick lubricated bearings ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a band and block brake, the ratio of tensions on the tight and slack sides of band is given by (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the centre of drum, and n = Number of blocks) T₁/T₂ = [(1 - μ tanθ)/ (1 + μ tanθ)]n T₁/T₂ = μθ × n T₁/T₂ = [(1 + μ tanθ)/ (1 - μ tanθ)]n T₁/T₂ = (μθ)n T₁/T₂ = [(1 - μ tanθ)/ (1 + μ tanθ)]n T₁/T₂ = μθ × n T₁/T₂ = [(1 + μ tanθ)/ (1 - μ tanθ)]n T₁/T₂ = (μθ)n ANSWER DOWNLOAD EXAMIANS APP
Machine Design The steel pulleys are __________ in weight than cast iron pulleys of the same capacity. None of these Heavier Lighter Moderate None of these Heavier Lighter Moderate ANSWER DOWNLOAD EXAMIANS APP
Machine Design The power transmitted by means of a belt depends upon Arc of contact between the belt and the smaller pulley Velocity of the belt Tension under which the belt is placed on the pulleys All of these Arc of contact between the belt and the smaller pulley Velocity of the belt Tension under which the belt is placed on the pulleys All of these ANSWER DOWNLOAD EXAMIANS APP
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