Machine Design According to maximum normal stress theory, the maximum normal stress in the shaft is σ + √(σ² × 4τ²) √(σ² × 4τ²) (1/2) × √(σ² × 4τ²) (1/2) × [σ + √(σ² × 4τ²)] σ + √(σ² × 4τ²) √(σ² × 4τ²) (1/2) × √(σ² × 4τ²) (1/2) × [σ + √(σ² × 4τ²)] ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to obtain bolt of uniform strength Tighten die bolt properly Drill an axial hole through head up to threaded portion so that shank area is equal to root area of thread Increase its length Increase shank diameter Tighten die bolt properly Drill an axial hole through head up to threaded portion so that shank area is equal to root area of thread Increase its length Increase shank diameter ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to I.B.R., the efficiency of a double riveted butt joint with double cover straps of equal width should be 70 to 83% 45 to 60% 80 to 90% 63 to 70% 70 to 83% 45 to 60% 80 to 90% 63 to 70% ANSWER DOWNLOAD EXAMIANS APP
Machine Design In hydrostatic bearings Grease is used for lubrication Do not require external supply of lubricant The oil film is maintained by supplying oil under pressure The Oil film pressure is generated only by the rotation of the journal Grease is used for lubrication Do not require external supply of lubricant The oil film is maintained by supplying oil under pressure The Oil film pressure is generated only by the rotation of the journal ANSWER DOWNLOAD EXAMIANS APP
Machine Design The strap end of a connecting rod of steam engine is joined by Knuckle joint Sleeve and cotter joint Spigot socket cotter joint Gib of cotter joint Knuckle joint Sleeve and cotter joint Spigot socket cotter joint Gib of cotter joint ANSWER DOWNLOAD EXAMIANS APP
Machine Design A triple riveted butt joint with double straps of unequal width is to be designed for a boiler shell. The pitch of the rivets in the outer row is double the pitch in the inner row and zigzag riveting is proposed. Which of the following statement is correct? There are five rivets per pitch length, out of which four are in double shear and one is in single shear There are four rivets per pitch length, out of which two are in single shear and two are in double shear There are five rivets per pitch length, all in double shear There are four rivets per pitch length, all in double shear There are five rivets per pitch length, out of which four are in double shear and one is in single shear There are four rivets per pitch length, out of which two are in single shear and two are in double shear There are five rivets per pitch length, all in double shear There are four rivets per pitch length, all in double shear ANSWER DOWNLOAD EXAMIANS APP
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