When two Belleville springs are in parallel, half force is obtained for a given deflection.
a) Half force
b) Double force
c) Same force
d) Can’t be determined
When two Belleville sprigs are arranged in series, half deflection is obtained for same force.a) One fourth deflectionb) Double deflectionc) Four time deflectiond) None of the listed
Are the bolts 2 and 3 under same force?a) Yesb) Noc) Depends on nature of force whether it is of shear or bending in natured) Can’t be determined
Belleville spring can only produce linear load deflection characteristics.a) Only linearb) Linear as well as non linearc) Non-lineard) None of the mentioned
For two springs connected in series, the net deflection is equal to the sum of deflection in two springs.a) Trueb) False
For two springs connected in parallel, net force is equal to the sum of force in each spring.a) Trueb) False
In drum brakes, as the temperature increases coefficient of friction ______a) increasesb) decreasesc) remains samed) Can’t be determined
Two plates each of thickness t are to be riveted together. If length of shank portion necessary to form the closing head is a, then length of rivet shank is given by?a) 2t+ab) 2(t+a)c) t+2ad) Can’t be determined
Can concentric springs be used to obtain a force which is not proportional to its deflection?a) Trueb) False
If the spring have same solid length and number of coils in the two springs are 8 and 10, then find the diameter of the spring with 8 coils. It is given diameter of spring with 10 coils is 12mm.a) 9.6mmb) 9mmc) 12mmd) 15mm
A railway wagon moving with a speed of 1.5m/s is brought to rest by bumper consisting of two springs. Mass of wagon is 100kg. The springs are compressed by 125mm. Calculate the maximum force acting on each spring.a) 1200Nb) 1500Nc) 1800Nd) 2000N