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The strain energy stored in a spiral spring is given by?
d) None of the listed
Explanation: U=Mθ/2 where θ=12ML/Ebtᵌ.
When the shaft is subjected to pure bending moment, the bending stress is given by?a) None of the listedb) 32M/πdᵌc) 16M/πdᵌd) 8M/πdᵌ
When the shaft is subjected to pure torsional moment, the torsional stress is given by?a) None of the listedb) 32M/πdᵌc) 16M/πdᵌd) 8M/πdᵌ
The optimum velocity of the belt for maximum transmission is given by √P/6m.a) Yesb) No, by replacing 6 by 3c) Replacing 6 by 9d) None of the listed
Modulus of resilience is defined asa) Strain energy per unit volumeb) Strain energy per unit areac) Independent of strain energyd) None of the mentioned
If number of coils are 8 and wire diameter of spring 3mm, then solid length is given by?a) None of the listedb) 27mmc) 24mmd) 21mm
The helix angle is very small about 2⁰. The spring is open coiled spring.a) Yesb) It is closed coiled springc) That small angle isn’t possibled) None of the listed
What will happen if stresses induced due to surge in the spring exceeds the endurance limit stress of the spring.a) Fatigue Failureb) Fracturec) None of the listedd) Nipping
Find the shear stress in the spring wire used to design a helical compression sprig if a load of 1200N is applied on the spring. Spring index is 6, and wire diameter 7mm.a) 452.2N/mm²b) 468.6N/mm²c) 512.2N/mm²d) None of the listed
Spiral spring is quite rigid.a) Yesb) No it is flexiblec) It is of moderate rigidityd) Rigidity can’t be determined
The longest leaf in a leaf spring is called centre leaf.a) It is called middle leafb) It is called master leafc) Yesd) None of the listed