Basic Electrical Engineering Interview Questions
1- The measure of potential difference in the insulation layer can withstand without breaking down called as
A:- Flexibility
B:- Dielectric strength
C:- Breaking capacity
D:- Rupturing Capacity
2- How many valence electrons are in a copper atom?
A:- 3
B:- 4
C:- 2
D:- 1
3- When a steady current (DC) passes through a solution of silver nitrate in water, deposits silver at the rate of 1.118 mg per second at the cathode is called
A:- Coulomb
B:- Ampere second
C:- International Ampere
D:- Conventional Ampere
4- What is the property of a good conductor?
A:- Must have low specific resistance
B:- Must have a high dielectric strength
C:- Must have low tensile strength
D:- Must have a low melting point
5- The process, in which the tip of the soldering iron is coated with the solder is known as
A:- Surface soldering
B:- Applying the solder
C:- Wetting of soldering
D:- Tinning of soldering iron
6- What is the effect on the resistance of the conductor, if its diameter is doubled?
A:- Increase to two times
B:- Increase to four times
C:- Decrease to half the value
D:- Decrease to 1/4th value
7- What is the name of imaginary lines that are perpendicular to the magnetic axis and pass through the center of the magnet?
A:- Magnetic axis
B:- Magnetic lines
C:- Magnetic neutral axis
D:- Magnetic line of face
8- How can the hard sulphation defect in lead acid batteries be rectified?
A:- Changing with new electrolyte
B:- Replacing with new electrodes
C:- By trickle charge
D:- Recharging the battery for a short period at a high current
9- For which type of fire, the foam fire extinguisher is most suitable?
A:- Class ‘A’ fires
B:- Class ‘B’ fires
C:- Class ‘C’ fires
D:- Class ‘D’ fires
10- What is the expansion of ABC in first aid treatment?
A:- Airway Bleeding Circulation
B:- Airway Breathing Carefulness
C:- Accident Breathing Carefulness
D:- Airway Breathing Circulation
11- Which device in a control panel does the operations in a sequential control system?
A:- Relays
B:- Timer
C:- Control Transformer
D:- Contactor
12- B.O.P in DC Drive means
A:- Bridge Operation Panel
B:- Basic Operation program
C:- Basic Operational Panel
D:- Bridge Operator program
13- In the Panelboard, which device protects the motor from overload and overheating?
A:- Rectifier
B:- Limit Switch
C:- Thermal relay
D:- Electromechanical relay
ANSWERS:
1-(B), 2-(D), 3-(C), 4-(A), 5-(D), 6-(D), 7-(C), 8-(C), 9-(B), 10-(D), 11-(B), 12-(C), 13-(C)