A box that tells the effect of inputs on control sub system is known as
Electrical Engineering XYZ MCQs A box that tells the effect of inputs on control sub system is known as: Correct answer: 1. Decision box
Electrical Engineering Mcqs
Electrical Engineering MCQs for competitive tests, job tests, university exams are provided on various Electrical and Electronics topics.
- Basic Electrical Laws and Theorems
- Basic Voltage and Current MCQs
- High Voltage Engineering MCQs
- Induction Motor MCQs
- Power Electronics
- Power Distribution MCQs
- Power Generation MCQs
- Power System Protection MCQs
- Power Transmission and Distribution MCQs
- Semiconductors theory MCQ Questions
- Synchronous Generator MCQs
- Synchronous motor MCQs
- Transformer MCQs
In the cauer-2 form of LC network ABC is series element and XYZ is shunt element respectively. Here ABC and XYZ respectively indicate
Electrical Engineering XYZ MCQ In the cauer-2 form of LC network ABC is series element and XYZ is shunt element respectively. Here ABC and XYZ respectively indicate: Correct answer: 4. C and L
Secondary winding of an auto transformer is also known as
Electrical Engineering XYZ MCQs Secondary winding of an auto transformer is also known as: Correct answer: 4. Common winding Explanation: An auto-transformer is a type of transformer with only one winding that serves as both the primary and secondary winding. The common winding is the portion of the winding that is shared by both the … Read more
The heat generated in the transformer is dissipated primarily by which process
Electrical Engineering XYZ MCQs The heat generated in the transformer is dissipated primarily by which process: Correct answer: 1. Convection Explanation: The heat generated in the transformer is dissipated primarily by which convection process. This is the process where heat is transferred through the movement of fluids (liquid or gas). In a transformer, oil is … Read more
In DC machines, the armature windings are placed on the rotor because of the necessity for
Electrical Engineering XYZ MCQs In DC machines, the armature windings are placed on the rotor because of the necessity for: Correct answer: 1. Commutation Explanation: In DC (direct current) machines, the armature windings are placed on the rotor to facilitate the process of commutation. Commutation is a crucial aspect of DC machines, especially in DC … Read more
The DC shunt generator, when commissioned after a major repair of the field system, failed to build up electric voltage. It was because
Electrical Engineering XYZ MCQs The DC shunt generator, when commissioned after a major repair of the field system, failed to build up electric voltage. It was because: Correct answer: 4. Field system lost residual magnetism Explanation: For a DC shunt generator to build up electric voltage, it requires the presence of residual magnetism in the … Read more
In a loaded dc motor, if brushes are given a shift from the interpolar axis in the direction of Rotation, then commutation will
Electrical Engineering XYZ MCQs In a loaded dc motor, if brushes are given a shift from the interpolar axis in the direction of Rotation, then commutation will: Correct answer: 1. Deteriorate and the speed falls Explanation: In a loaded DC motor, commutation is the process of reversing the current in the coil or armature winding … Read more
The interpoles in DC machines have a tapering shape in order to
Electrical Engineering XYZ MCQs The interpoles in DC machines have a tapering shape in order to: Correct answer: 4. Reduce the saturation in the interpole Explanation: Interpoles are additional poles placed between the main poles of a DC machine to improve commutation, which is the process of smoothly transferring current from one armature coil to … Read more
If the speed of a dc motor increases with load torque, then the motor is a
Electrical Engineering XYZ MCQs If the speed of a dc motor increases with load torque, then the motor is a: Correct answer: 1. Differentially compounded motor
A DC cumulatively compounded motor delivers rated load torque at rated speed. If the series field is short-circuited, then the armature current and speed will respectively
Electrical Engineering XYZ MCQ A DC cumulatively compounded motor delivers rated load torque at rated speed. If the series field is short-circuited, then the armature current and speed will respectively: Correct answer: 3. Both will increase Explanation: In a cumulatively compounded DC motor, both shunt and series field windings are connected in such a way … Read more