- One small nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming
- A slot is cut partly in middle of nut and then slot reduced by tightening a screw
- Hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is stewed on the bolt causing a tight grip
- Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin splitted and bent in reverse direction at other end
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When a bolt and nut is made of mild steel, then the effective height of nut is made equal to (where d = Nominal diameter of bolt)?
Answer: Option 3 Let'
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All materials obey Hooke's law within elastic limit. When elastic limit is reached, the tensile strain?
Answer: Option 1 Let'
1 Answers 1 views
Elastic failure of a material occurs, when the tensile stress equals yield strength, yield point or the elastic limit. Also, the elastic failure occurs according to maximum strain theory, when the maximum tensile strain equals (where, σ = yield strength and E = modulus of elasticity)?
Answer: Option 3 Let'
1 Answers 2 views
Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)?
Answer: Option 1 Let'
1 Answers 1 views
A locking device in which the bottom cylindrical portion is recessed to receive the tip of the locking set screw, is called?
Answer: Option 1 Let'
1 Answers 1 views
Jam nut is a locking device in which?
Answer: Option 1 Let'
1 Answers 1 views
Split nut is a locking device in which?
Answer: Option 2 Let'
1 Answers 2 views
Castle nut is a locking device in which?
Answer: Option 4 Let'
1 Answers 1 views