Related Questions

The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the __________ stress.
A Working
B Damaging
C Allowable
D None of these
When a body is subjected to a direct tensile stress (σ) in one plane, the maximum shear stress is __________ the maximum normal stress.
A Equal to
B One-half
C Two-third
D Twice
According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress.
A 0.5
B 2
C $$\sqrt 2 $$
D $$\sqrt {\frac{3}{2}} $$
In Bangladesh , BTRC provides bandwidth of internet services through submarine cable network . Which of the following submarine cable networks is connected with Bangladesh ?
A Southern Cross Cable
B SEA-ME-WE
C C2C North Ring
D FLAG
In Bangladesh, BRTC provides bandwidth of internet services through submarine cable network . Which of the following submarine cable networks is connected with Bangladesh ?
A SEA-ME-WE
B FLAG
C Southern Cross Cable
D C2C North Ring
If a power cable and a communication cable are to run parallel the minimum distance between the two, to avoid interference, should be
A 2 cm
B 10 cm
C 50 cm
D 400 cm
What problem can occur if a printer cable is to close to a power cable?
A ESD Electrostatic Discharge
B EMI Electromagnetic Interference
C parity error
D no affect
E None of the above
A ও B এর মধ্যে সর্বোচ্চ, গতিতে ডেটা আদান প্রদানের জন্য করা উচিত-i, HUB এর পরিবর্তে switch ব্যবহার ii. HUB এর পরিবর্তে রাউটার ব্যবহার iii. Twisted pair cable এর পরিবর্তে optical fiber cable ব্যবহার নিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i, ii ও iii
A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where $$\sigma $$ = Stress for a plate with no hole i.e. nominal stress)
A $$\sigma \left( {1 + \frac{{\text{b}}}{{2{\text{a}}}}} \right)$$
B $$\sigma \left( {1 + \frac{{2{\text{a}}}}{{\text{b}}}} \right)$$
C $$\sigma \left( {1 + \frac{{\text{b}}}{{3{\text{a}}}}} \right)$$
D $$\sigma \left( {1 + \frac{{3{\text{a}}}}{{\text{b}}}} \right)$$
The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be
A Same in both cases
B 2 times more
C 3 times more
D 4 times more

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