Related Questions

A steam carraying pipeline is insulated with two layers of insulating materials with the inferior insulation material forming the inner part. If the two insulating layers are interchanged, the heat conducted will
A Increase
B Decrease
C Remain unaffected
D May increase or decrease; depends on the thickness of each layer
An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture?
A Cork
B Saw dust
C Sand
D Chemically prepared foam
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
The insulating material should have
A Low permittivity
B High resistivity
C High dielectric strength
D All of the above
The insulating material for cables should
A Be acid proof
B Be non-inflammable
C Be non-hygroscopic
D Have all above properties
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
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
Surface resistance of an insulating material is reduced due to the
A Smoky and dirty atmosphere
B Humidity in the atmosphere
C Both A and B
D Neither A nor B

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