If d is the diameter of bolt hole then for a flanged pipe joint to be leak proof, the circumferential pitch of the bolts should be...
lOVZ
15Vdto20VZ
10VZtol5Vd
20Vdto30Vd
30V5″to40Vd.
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Which is correct statement ?
a member made of cast iron will generally be. more rigid than a member of equal load carrying ability made of steel
which one is rigid will depend on several other factors
both will be equally rigid
a member made of steel will generally be more rigid than a member of equal load-carrying ability made of cast iron
none of the given
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Rankine’s theory of failure is applicable for following type of materials...
elastic
brittle
tough.
plastic
ductile
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The crest diameter of a screw thread is same as...
core diameter
pitch diameter
none of the given.
major diameter
minor diameter
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A self locking screw has...
fine threads
two nuts for locking.
coarse threads
hole for inserting split pin
coefficient of friction > tangent of load angle
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Pick up wrong statement. Fatigue strength can be increased by...
using gradual changes of section.
shot peeing
grinding and lapping surface
hot working
cold working
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If a material fails below its yield point, failure would be due to...
fatigue
straining
impact loading.
sudden loading
creep
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Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number of load applications without failure when subjected to....
completely reversed loading
combined static and dynamic loading
dynamic loading
static loading
all of the given
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For steel, the ultimate strength in shear as compared to ultimate strength in tension is....
1/2
1/3
1/4
2/3
same
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The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be...
8/2
48
8/4
28
none of the given
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