BEEE I YEAR - AI&DS

The power dissipated by a resistance is directly proportional to ______________.

• V²

• I²

• V

• a & b are correct

KVL is associated with____________

• Mesh analysis

• Nodal analysis

• Both mesh and nodal

• Neither mesh nor nodal

Thevenin resistance is found by ________

• Shorting all voltage sources

• Opening all current sources

• Shorting all voltage sources and opening all current sources

• Opening all voltage sources and shorting all current sources

Form Factor is the ratio of

• Average value/ r.m.s. value

• Average value/ peak value

• r.m.s. value/ average value

• r.m.s. value/ peak value

The maximum power is delivered from a source to its load when the load resistance is ______ the source resistance.

• equal to

• less than

• greater than

• less than or equal to

Which of the following part is used in construction of DC machine but not in

AC machine?

• Shaft

• Commutator

• Field winding

• Armature Winding

Which type motors are preferred for lathes?

• DC shunt motors

• Squirrel Cage induction motor

• Synchronous motor

• DC Shunt Motors or Squirrel cage induction motor

What is the working principle of a Transformer?

• Transformer works on the principle of self induction

• Transformer works on the principle of mutual induction

• Transformer works on the principle of coulomb law

• Transformer works on the principle of ampere law

A stepper motor may be considered as a ____________ converter.

• Dc to ac

• Ac to ac

• Dc to dc

• Digital-to-analogue

Direction of rotation of motor is determined by ____________

• Fleming’s left-hand rule

• Fleming’s right-hand rule

• Coulomb’s law

• Faraday’s law