Related Questions

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)
A 0.5 d
B 0.75 d
C d
D 1.25 d
A rod is enclosed centrally in a tube and the assembly is tightened by rigid washers. If the assembly is subjected to a compressive load, then
A Rod is under compression
B Tube is under compression
C Both rod and tube are under compression
D Tube is under tension and rod is under compression
When a nut is tightened by placing a washer below it, the bolt will be subjected to following type of loads
A Compression
B Tension
C Shear
D Combined loads
The bolt is subjected to __________ when the nut is tightened by putting the washer beneath it.
A Tension
B Shear
C Compression
D Bending & tension
If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to
A Diameter of bolt
B 0.75 × diameter of bolt
C 1.25 × diameter of bolt
D 1.5 × diameter of bolt
For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately
A 0.4 times
B 0.6 times
C 0.7 times
D 0.8 times
The most important function of a washer is to provide bearing area and washers are normally specified by their hole diameters. The diameter of washer as compared to the nut is
A More
B Less
C Same
D More but less than the diameter of bolt
If a single tube pass heat exchanger is converted to two pass, then for the same flow rate, the pressure drop per unit length in tube side will
A Increase by 1.8 times
B Decrease by 22
C Increase by 216
D Remain unchanged
The pitch of threads on a Jock nut in comparison to pitch of nut is
A Same
B Coarser
C Finer
D Very fine
If threads on a bolt are left hand, threads on nut will be
A Right hand with same pitch
B Left hand with same pitch
C Could be left or right hand
D Right hand with fine pitch

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