Objective Fundamentals of Electricity Questions – Electrical Engineering (Page 2)

#21📜 EE Pre-Board March 2017📘 PowerhouseEasy

Which is not a source of power?

AThermocouple

BFuel cell

CPhotovoltaic cell

DSolar cell

#22📜 EE Pre-Board March 2017📘 PowerhouseEasy

The velocity of electromagnetic waves in free space is given by

A\(\sqrt{\mu_0/\varepsilon_0}\)

B\(\sqrt{\mu_0\varepsilon_0}\)

C\(1/\sqrt{\mu_0\varepsilon_0}\)

D\(\sqrt{\varepsilon_0/\mu_0}\)

#23📜 EE Pre-Board March 2017📘 PowerhouseEasy

Human body is

AInsulator

Blow resistive

Cconductor

Delectrolyte

#24📜 EE Pre-Board March 2018📘 PowerhouseEasy

The basis where the flow of current is from positive to negative was derived from __________

ASuperstition

BTradition

CScientific

DConvention

#25📜 EE Pre-Board March 2018📘 PowerhouseEasy

The condition in Ohm’s law is that

Athe ratio V/I should be constant

Bcurrent should be proportional to voltage

Cthe temperature should remain constant

Dthe temperature should vary

#26📜 EE Pre-Board March 2018📘 PowerhouseEasy

How is the storage battery rated in capacity?

Avolts

Bwatts

Camperes

Dampere-hour

#27📜 EE Pre-Board August 2018📘 PowerhouseEasy

The condition in Ohm’s Law is that

Aratio V/I should be constant

Bcurrent should be proportional to voltage

Cthe temperature should remain constant

Dthe temperature should vary

#28📜 EE Pre-Board August 2018📘 PowerhouseEasy

The condition of a liquid electrolyte is measured in terms of its

Acurrent value

Bspecific gravity

Cacid content

Dvoltage output

#29📘 EE Pocket Reviewer RojasEasy

What is the temperature coefficient of resistance of a conductor?

APositive

BNegative

CZero

DEither A or

#30📘 EE Pocket Reviewer RojasEasy

Which of the following is false?

AA lead-acid cell can be recharged

BA primary cell has an irreversible chemical action

CA storage cell has a reversible chemical action

DA carbon-zinc cell has unlimited shelf life

#31📘 EE Pocket Reviewer RojasEasy

A good conductor has a high ____

AResistance

BImpedance

CConductance

DReluctance

#32📘 EE Pocket Reviewer RojasEasy

The mass of an atom is determined by the number of which of the following?

ANeutrons

BElectrons

CNeutrons and protons

DElectrons and neutrons

#33📘 EE Pocket Reviewer RojasEasy

Which of the following is a unit of conductivity?

AMho/meter

BMho-meter

COhm-meter

DOhm/meter

#34📘 EE Pocket Reviewer RojasEasy

Trickle charging of a storage battery

AIncreases its capacity

BPrevents sulphation

CKeeps it fresh and fully charged

DMaintains proper electrolyte level

#35📘 EE Pocket Reviewer RojasEasy

The temperature coefficient of resistance of a material is expressed in terms of which of the following units?

AOhms/ohm/°C

BMhos/ohm/°C

CMhos/°C

DOhms/°C

#36📘 EE Pocket Reviewer RojasEasy

The mass of a proton is ____ the mass of an electron.

AEqual to

BLess than

CAbout 1,837 times

DAbout 200 times

#37📘 EE Pocket Reviewer RojasEasy

One “calorie” of heat energy is approximately equivalent to ____ of electrical energy.

A24 watt-sec

B4.2 joules

C860 joules

D3600 watt-hour

#38📘 EE Pocket Reviewer RojasEasy

What type of storage battery generally used in an electric power station?

ALead-acid battery

BCarbon-zinc battery

CNickel-cadmium battery

DLithium-ion battery

#39📘 EE Pocket Reviewer RojasEasy

Which of the following is a sealed secondary ceil?

AEdison cell

BCarbon-zinc cell

CMercury cell

DNickel cadmium cell

#40📘 EE Pocket Reviewer RojasEasy

What is the effect of sulphation in the internal resistance of the battery?

AIt will increase

BIt will decrease

CIt remains the same

DIt will make the resistance vanish

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