If T is the actual number of teeth on a helical gear and φ is the helix angle for the teeth, then formative number of teeth is written as T cosecφ T/sec³φ T sec²φ T sec³φ TRUE ANSWER : ? YOUR ANSWER : ?
If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to 0.75 × diameter of bolt 1.5 × diameter of bolt 1.25 × diameter of bolt Diameter of bolt TRUE ANSWER : ? YOUR ANSWER : ?
According to I.B.R., the efficiency of a double riveted butt joint with double cover straps of equal width should be 80 to 90% 45 to 60% 70 to 83% 63 to 70% TRUE ANSWER : ? YOUR ANSWER : ?
Lewis form factor for 14½° composite and full depth involute system is (where T = Number of teeth) 0.175 - (0.841/T) 0.154 - (0.912/T) None of these 0.124 - (0.684/T) TRUE ANSWER : ? YOUR ANSWER : ?
The centre to centre distance between two consecutive rivets in a row, is called Back pitch Margin Diagonal pitch Pitch TRUE ANSWER : ? YOUR ANSWER : ?
The shock resistance of steel is increased by adding Nickel Nickel and chromium Cobalt and molybdenum Chromium TRUE ANSWER : ? YOUR ANSWER : ?
Cold working Has no influence on fatigue strength Alone has no influence on fatigue strength Increases the fatigue strength Decreases the fatigue strength TRUE ANSWER : ? YOUR ANSWER : ?
The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be 4 times more 3 times more Same in both cases 2 times more TRUE ANSWER : ? YOUR ANSWER : ?
In designing a connecting rod, it is considered like __________ for buckling about Y-axis. One end fixed and the other end hinged One end fixed and the other end free Both ends fixed Both ends hinged TRUE ANSWER : ? YOUR ANSWER : ?
The difference between the tooth space and the tooth thickness as measured on the pitch circle, is called Face width Working depth Backlash Clearance TRUE ANSWER : ? YOUR ANSWER : ?