The most important set of specifications of transformer oil include dielectric s

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Question
The most important set of specifications of transformer oil include
Options
A. dielectric strength and viscosity
B. dielectric strength and flash point
C. viscosity and flash point
D. flash point and viscosity

Correct Answer

dielectric strength and viscosity

Materials and Components problems

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3. Assertion (A): Dielectric constant is independent of temperature unless the temperature is extremely high.
Reason (R): For normal temperatures the number of atoms per unit volume is constant.
Options
A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not correct explanation of A
C. A is true but R is false
D. A is false but R is true

6. If ?_p is permanent dipole moment and T is absolute temperature, the orientation polarization of polyatomic gases is
Options
A. proportional to ?_p²T
B. proportional to
C. proportional to ?_p T
D. proportional to

9. Assertion (A): If an atom of polarizability a is placed in homogeneous field E, the energy stored is 0.5 aE².
Reason (R): Capacitance of an isolated conducting sphere R in vacuum is 4 p?₀ R farads.
Options
A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not correct explanation of A
C. A is true but R is false
D. A is false but R is true

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