The connecting rod bolts are tightened up with initial tension greater than the external load so that
Joint may not open up
Bolts are weakest elements
The resultant load on the bolt would not be affected by the external cyclic load
Bolts will not loosen during service
- A feather key is generally
- In the levers of first type, the mechanical advantage is __________ one.
- Two closely coiled helical springs with stiffness k₁ and k₂ respectively are connected…
- In helical gears, the distance parallel to the axis, between similar faces of adjacent teeth, is called
- The efficiency of a square threaded screw is maximum if the helix angle is equal to (Where φ =…
- When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and…
- The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under…
- The process which improves the machinability of steels, but lowers the hardness and tensile strength…
- Which of the following statement is correct, for two shafts connected in parallel?
- The distribution of the forces along the length of key fitted in a shaft
- The bending moment M and a torque T is applied on a solid circular shaft. If the maximum bending stress…
- I.S. specifies following total number of grades of tolerances
- A triple riveted butt joint with double straps of unequal width is to be designed for a boiler shell.…
- A locking device in which the bottom cylindrical portion is recessed to receive the tip of the locking…
- The value of stress concentration factor depends upon
- According to Indian standards, a bolt thread of 6 mm size of coarse pitch and with allowance on the…
- If T₁ and T₂ are the tensions on the tight and slack sides of the belt respectively, and…
- The endurance limit in shear of carbon steel can be obtained by multiplying the endurance limit in flexure…
- In a marine flange coupling, the thickness of flange is taken as
- The shearing stresses in the inner face as compared to outer face of the wire in a heavy close coiled…
- Which of the following property is essential for spring materials?
- A steel containing upto 0.15% carbon is known as
- For same pulley diameters, center distance, belt speed and belt and pulley materials,
- The coefficient of friction in belt drive depends upon
- The difference between the tooth space and the tooth thickness as measured on the pitch circle, is called
- The power transmitted by belt drive depends upon
- Which of the following material has the maximum ductility?
- Cast iron pipes are mainly used
- In testing a material for endurance strength, it is subjected to
- Rivets are generally specified by