MCQs

The DC resistance of a crystal diode is Less than ac resistance More than ac resistance The same as its ac resistance none of these Correct answer: 1. Less than ac resistance

The most important consideration when a crystal diode is used as a rectifier is its Doping Level Forward Characteristic PIV Rating Reverse Characteristic Correct answer: 3. PIV Rating

The crystal diode has One Pn Junction Three Pn Junctions Two Pn Junctions None of these Correct answer: 1. One Pn Junction

If doping level of a crystal diode is increased, the breakdown voltage Is decreased Is increased Remains the same None of these Correct answer: 1. Is decreased

A series resistance is connected in the Zener circuit in order to Properly forward bias the Zener Properly reverse bias the Zener Protect the Zener None of these Correct answer: 3. Protect the Zener

The Zener diode is A Linear device A Non-Linear device An Amplifying device None of these Correct answer: 2. A Non-Linear device

The correct statement regarding a Y-connected source feeding a ∆-connected load, Each phase of the load has a voltage across it equal to √3 Each phase of the load has one-third of the full line voltage across it Each phase of the load has the full line voltage across it Each phase of the load … Read more

The most common and popular type of ac motor is Single-phase induction motor Three-phase induction motor Two-phase induction motor Two-phase squirrel-cage motor Correct answer: 2. Three-phase induction motor

The disadvantage of a half-wave rectifier is that the Components are expensive Diodes must have a higher power rating Output is difficult to filter None of these Correct answer: 3. Output is difficult to filter

A zener diode is employed as A Multivibrator A Rectifier A Voltage Regulator An Amplifier Correct answer: 3. A Voltage Regulator