Related Questions

Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials.
A circular
B triangular
C rectangular
D none of the above
The coefficient of coupling between two air core coils depends on
A Self-inductance of two coils only
B Mutual inductance between two coils only
C Mutual inductance and self inductance of two coils
D None of the above
The distance between the starts of two consecutive coils measured in terms of coil sides is called
A front pitch
B winding pitch
C commutator pitch
D back pitch
In a single phase power factor meter the phase difference between the currents in the two pressure coils is
A exactly 0°
B approximately 0°
C exactly 90°
D approximately 90°
It is required to connect two parallel shafts, the distance between whose axes is small and variable. The shafts are coupled by
A Universal joint
B Knuckle joint
C Oldham's coupling
D Flexible coupling
When a body is subjected to direct tensile stresses ($${\sigma _{\text{x}}}$$ and $${\sigma _{\text{y}}}$$) in two mutually perpendicular directions, accompanied by a simple shear stress $${\tau _{{\text{xy}}}}{\text{,}}$$  then in Mohr's circle method, the circle radius is taken as
A $$\frac{{{\sigma _{\text{x}}} - {\sigma _{\text{y}}}}}{2} + \tau $$
B $$\frac{{{\sigma _{\text{x}}} + {\sigma _{\text{y}}}}}{2} + \tau $$
C $$\frac{1}{2}\sqrt {{{\left( {{\sigma _{\text{x}}} - {\sigma _{\text{y}}}} \right)}^2} + 4\tau _{{\text{xy}}}^2} $$
D $$\frac{1}{2}\sqrt {{{\left( {{\sigma _{\text{x}}} + {\sigma _{\text{y}}}} \right)}^2} + 4\tau _{{\text{xy}}}^2} $$
When a body is subjected to biaxial stress i.e. direct stresses ($${\sigma _{\text{x}}}$$) and ($${\sigma _{\text{y}}}$$) in two mutually perpendicular planes accompanied by a simple shear stress ($${\tau _{{\text{xy}}}}$$ ), then maximum shear stress is
A $$\frac{1}{2}\sqrt {{{\left( {{\sigma _{\text{x}}} - {\sigma _{\text{y}}}} \right)}^2} + 4\tau _{{\text{xy}}}^2} $$
B $$\frac{1}{2}\sqrt {{{\left( {{\sigma _{\text{x}}} + {\sigma _{\text{y}}}} \right)}^2} + 4\tau _{{\text{xy}}}^2} $$
C $$\sqrt {{{\left( {{\sigma _{\text{x}}} - {\sigma _{\text{y}}}} \right)}^2} + \tau _{{\text{xy}}}^2} $$
D $$\sqrt {{{\left( {{\sigma _{\text{x}}} + {\sigma _{\text{y}}}} \right)}^2} + \tau _{{\text{xy}}}^2} $$
Spacers are provided between adjacent coils
A to provide free passage to the cooling oil
B to insulate the coils from each other
C both (A) and (B)
D none of the above
____________ types are mutually exclusive in the sense that a user agent can only support one media type when rendering a document.
A tv
B tty
C media
D audio
The ratio of direct stress to volumetric strain in case of a body subjected to three mutually perpendicular stresses of equal intensity, is equal to
A Young's modulus
B Bulk modulus
C Modulus of rigidity
D Modulus of elasticity

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