The conductors have transport phenomena of electrons due to

In AC.S.R. Conductors, the insulation between aluminium and steel conductors is

A

Insulin

B

Bitumen

C

Varnish

D

No insulation is required

Eclipses occur due to which optical phenomena?

A

Reflection

B

Refraction

C

Rectilinear propagation

D

Diffraction

Air binding phenomena in rapid sand filters occur due to

A

Excessive negative head

B

Mud ball formation

C

Higher turbidity in the effluent

D

Low temperature

In conductors conduction of electricity takes place due to movement of

A

Electrons only

B

Positive ions only

C

Negative ions only

D

Positive and negative ions

A person travels I2 km due north, then 15 km due east after that I5km due west and then 18 km due south. How far B she from the starting point?

A

6km

B

10km

C

33km

D

60km

All good conductors have high

A

Conductance

B

Resistance

C

Reluctance

D

Thermal conductivity

Except __________ , all other refractories are bad conductors of electricity (i.e, have low electrical conductivity).

A

Fireclay

B

Carborundum

C

Graphite

D

Chromite

The random motion of holes and free electrons due to thermal agitation is called ___________

A

Diffusion

B

Pressure

C

Ionisation

D

None of the above

The singular form of 'phenomena' is-

A

phenomenna

B

phenomenon

C

phenomenone

D

phenom

Which of the following phenomena is responsible for the formation of the highest mountains?

A

Denudation

B

Fault formation

C

Volcanic activity

D

Folding

The conductors have transport phenomena of electrons due to

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