Centum Electronics Placement Question Papers

Centum has rapidly grown into a diversified electronics company operating across different industry segments and offering a broad range of products and services.

Centum Electronics Placement Test Questions

Centum selection process contains three rounds

1. Written Test(Most of the cases it is offline test having 30 Multiple choice questions attempted in 60 Minutes of time,Questions come from Basic Knowledge of Electrical and Electronics concepts,Refer below)
2. " Technical Interview "
3. HR Interview

Centum Electronics Placement Paper Questions and Answers :-

Which of the following represents ohms law?

V = RI

J = σE

I = GV

All of the above

What is the unit of Inductance?

Henry (Symbolized H)

Motor is converting _______ energy into ________ energy

Electrical to Mechanical

               

If current through a resistance is halved

The resistance is halved

The voltage is halved

The voltage doubles

None of the above

A Step Up transformer _______

Step Up the level of Voltage and Step down the level of current

Two capacitors of capacitance 9 µF and 18 µF in series will have a total capacitance of:

27 µF

6 pF

162 µF

180 µF

The Biot-savarts law is a general modification of

Kirchhoff’s law

Lenz’s law

Amperes law

Faradays law

Which component opposes voltage change?

Resistor

Inductor

Capacitor

Transistor

If two equal resistances connected in series across a certain supply are now connected in parallel across the same supply, the power produced will be __________ that of series connection:

One-half

Four times

One-fourth

Two times

Cells are connected in series in order to _______

Increase the voltage rating

The input impedance of a transistor is _______

High

Low

Very high

Almost zero

Siemens or Mho (℧) is the unit of _______

Conductance

To obtain a higher value of resistance, resistors are connected in:

Reverse

Forward

Parallel

Series

Kirchhoff’s laws (KCL and KVL) are applicable to:

DC circuits

AC circuits

Passive networks alone

DC as well AC circuits

If the resistance in a circuit with constant voltage increases, the current will

Increase

Stay the same

Decrease

Not enough information

The tiniest element of matter is

Atom

Proton

Neutron

Electron

Current is _____

The movement of electrons

In case of Short Circuit _______ Current will flow in the Circuit. 

Zero

Very Low

Normal

Infinite

The base of a transistor is ______ doped

Heavily

Moderately

Lightly

None of the above

The direction of induced emf can be found by _______

Lenz’s law

Which of the following has the least number of valence electrons?

Conductor

Semiconductor

Insulator

Semi-insulator

The unit of electrical energy is

Joule

Watt-second

Kilowatt-hour

All of these

Ohm’s law can be used only for a _____ circuit or component

Unilateral

Exponential

Trivalent

Linear