# MCQ in Electrical Circuit Part 12 | ECE Board Exam

(Last Updated On: November 24, 2020) This is the Multiples Choice Questions Part 12 of the Series in Electrical Circuit as one of the Electronics Engineering topic. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including but not limited to past Board Exam Questions in Electronics Engineering field, Electronics Books, Journals and other Electronics References.

#### MCQ Topic Outline included in ECE Board Exam Syllabi

• MCQ in AC-DC circuits
• MCQ in Resistors
• MCQ in Inductors
• MCQ in Capacitors

#### Continue Practice Exam Test Questions Part 12 of the Series

Choose the letter of the best answer in each questions.

ECE Board Exam November 2001

551. The new and preferred term for conductance or mho

A. Siemens

B. She-man

C. Seaman

D. ROM

Solution:

ECE Board Exam April 2001

552. Represents the current flow produced by one volt working across one ohm of resistance.

A. resistance

B. ampere

C. voltage

D. electromotive force

Solution:

ECE Board Exam November 1995

553. When an atom gains an additional _________, it results to a negative ion.

A. atom

B. neutron

C. proton

D. electron

Solution:

ECE Board Exam November 1999

554. The definite discrete amount of energy required to move an electron from a lower shell to higher shell.

A. quantum

B. positive energy

C. negative energy

D. quanta

Solution:

ECE Board Exam November 1999

555. What will happen to an atom if an electron is either taken out or taken into the same atom?

A. becomes a negative ion

B. becomes an ion

C. becomes a positive ion

D. nothing will happen

Solution:

ECE Board Exam April 1999

556. The energy in an electron that is called the energy of motion

A. electromotive force

B. kinematics

C. kinetic energy

D. potential energy

Solution:

ECE Board Exam November 1996

557. Electric charge of neutron is the same as __________.

A. atom

B. electron

C. current

D. proton

Solution:

ECE Board Exam April 1998

558. Ion is _________.

A. free electron

B. nucleus without protons

C. proton

D. an atom with unbalanced charges

Solution:

ECE Board Exam November 1997

559. An insulating element or material has capability of _________.

A. storing voltage

B. preventing short circuit between two conducting wires

C. conducting large current

D. storing high current

Solution:

ECE Board Exam April 1998

560. What is the value of a resistor with colors from left: Orange, Blue, Gold and Silver?

A. 34 ohms + /-10%

B. 36 ohms +/-10%

C. 3.4 ohms +/-10%

D. 3.6 0hms +/-10%

Solution:

ECE Board Exam April 2001

561. A three-terminal resistor with one or more sliding contacts which functions as an adjustable voltage divider

A. Rheostat

B. Bleeder resistor

C. Potentiometer

D. Voltage divider

Solution:

ECE Board Exam November 2000

562. A resistor which is used to draw a fixed amount of current

A. potentiometer

B. bleeder resistor

C. fixed resistor

D. rheostat

Solution:

ECE Board Exam November 2001

563. Find the value of a resistor with the following color codes: Orange, Yellow, Red, Red

A. 34 k ohms +/-5%

B. 3.4 ohms +/-2%

C. 3.4 k ohms +/-10%

D. 34 k ohms +/-20%

Solution:

ECE Board Exam November 1996

564. Electric energy refers to _________.

A. Joules divided by time

B. Volt-ampere

C. Watt

D. Volt-coulomb

Solution:

ECE Board Exam April 2001

565. What is the resistance of an open fuse circuit?

A. at least 1000 ohms

B. infinity

C. zero

D. 100 ohms at standard temperature

Solution:

ECE Board Exam April 1998

566. When should a fuse be replaced with a higher rated unit?

A. when the fuse of the original value is small in size

B. when the original is not available

C. never

D. if it blows

Solution:

ECE Board Exam November 2000

567. The ability to do work

A. energy

B. kinetic

C. potential

D. voltage

Solution:

ECE Board Exam November 2001

568. Which type of variable resistor should you use for controlling large amount of current?

A. Potentiometer

C. Variac

D. Rheostat

Solution:

ECE Board Exam April 2000

569. What does the fourth loop of an electronic resistor color code represent?

A. Multiplier

B. Temperature

C. First digit of the equivalent value

D. Tolerance

Solution:

ECE Board Exam November 2000

570. Ten micro-microfarads is equivalent to __________.

ECE Board Exam November 1995

Solution:

571. How much is the resistance of a germanium slag 10 cm long and cross sectional area of 1 square cm?

A. 55 k ohms

B. 5.5 k ohms

C. 550 k ohms

D. 550 ohms

Solution:

ECE Board Exam November 2001

572. A variable resistor normally used as a voltage divider

A. Carbon film resistor

B. Potentiometer

D. Metal film resistor

ECE Board Exam April 2001

Solution:

573. Determine the equivalent horse power of 2.611 kilowatts.

A. 3.50 hp

B. 2.50 hp

C. 2.25 hp

D. 1.50 hp

Solution:

ECE Board Exam November 2000

574. Find the lowest resistance value of the following resistors.

A. White, black, black

B. Violet, gray, yellow, silver

C. Red, black, gold

D. Gray, gray, black

Solution:

ECE Board Exam November 1998

575. If the bands on a resistor are yellow, violet, red and gold, what is the resistance value?

A. 470 ohms 5%

B. 470 ohms 10%

C. 47000 ohms 5%

D. 4700 ohms 5%

Solution:

ECE Board Exam November 1997

576. Rust in electrical (wire) connections will result to __________.

A. Conductance

B. Resistance

C. Voltage

D. Inductance

Solution:

ECE Board Exam November 1996

577. The area of a conductor whose diameter is 0.001 inch is equal to

A. One micron

B. One angstrom

C. One circular mil

Solution:

ECE Board Exam November 1995

578. _____ is the term used to express the amount of electrical energy in an electrostatic field.

A. Joule

B. Coulomb

C. Volt

D. Watt

Solution:

ECE Board Exam November 1995

579. Which of the following statement is correct?

A. Potentiometer has two terminals

B. Transistor has two terminals

C. Typical power rating of a carbon-composition resistor ranged from 0.125 W to 2 W

D. Open resistor has small resistance

Solution:

ECE Board Exam November 1996

580. _______ is one factor that does not affect resistance.

A. Resistivity

B. Cross sectional area

C. Length

D. Mass

Solution:

ECE Board Exam November 1998

581. What is the value of a resistor having the following colored bands: Yellow-Gray-Red-Silver?

A. 4800 ohms ±10%

B. 480 ohms ±10%

C. 3800 ohms ±1%

D. 4.8 ohms ±1%

Solution:

ECE Board Exam November 1997

582. Find the value of resistor with the following color codes; Brown, White, Orange, Red

A. 190 ohms 10%

B. 19 k ohms 2%

C. 1.9 k ohms 10%

D. 19 k ohms 20%

Solution:

ECE Board Exam November 1998

583. Resistor with colored bands in the body

B. Wire-wound resistor

C. Variable resistor

D. Carbon composition resistor

Solution:

ECE Board Exam November 1998

584. If the bands on a resistor are red, red, orange and silver, what is the resistance value?

A. 220 ohms 5%

B. 223 0hms 10%

C. 22,000 ohms 10%

D. 2200 ohms 20%

Solution:

ECE Board Exam November 1997

585. What does the second strip of an electronic resistor color code represent?

A. Tolerance

B. Second digit of the value

C. Temperature

D. Multiplier

Solution:

ECE Board Exam November 2000

586. The energy in an electron that is called the energy of position

A. Kinetic energy

B. Kinematics

C. Electromotive force

D. Potential energy

Solution:

ECE Board Exam April 1999

587. If an electronic resistor does not have the fourth color strip it means it has a tolerance of _________.

A. 5%

B. 20%

C. 10%

D. 1%

Solution:

ECE Board Exam April 1998

588. What happens to the resistance of a conductor wire when its temperature is lowered?

A. Decreased

C. Zero

D. Increased

Solution:

ECE Board Exam April 1998

589. Which of the following does not refer to electric energy?

A. Joule

B. Watt second

C. Volt coulomb

D. Volt ampere

Solution:

ECE Board Exam March 1996

590. Which of the following statement is incorrect?

A. open transistor has three (3) terminals

B. transistors have three (3) terminals

C. typical power rating of carbon-composition resistor ranged 0.001 W to 0.1 W

D. potentiometer has three (3) terminals

Solution:

ECE Board Exam November 1997

591. Term used in electronic measuring device when a metal increases resistance due to heat produced by current flowing through them.

A. positive resistance coefficient

B. positive temperature coefficient

C. negative temperature coefficient

D. negative resistance coefficient

Solution:

592. A 1 km cable consists of 12 identical strands of aluminum each 3 mm in diameter. What is the resistance of the cable?

A. 0.34 ohm

B. 0.54 ohm

C. 0.44 ohm

D. 0.24 ohm

Solution:

593. A piece of wire has a resistance of 0.5 ohm. The length is doubled and the area is increased four times. What is its resistance?

A. 0.75 ohm

B. 0.50 ohm

C. 0.25 ohm

D. 1 ohm

Solution:

594. Copper wire of certain length and resistance is drawn out to four times its length without change in volume. What is the resistance of the bar?

A. unchanged

B. R/16

C. 16R

D. 4R

Solution:

595. Current is simply _________.

A. Flow of electrons

B. Flow of protons

D. Emission

Solution:

596. The resistance of a coil of wire is 1 kΩ at 20°C. If the coil is immersed into oil, the resistance falls to 880 Ω. If the wire has a temperature coefficient of 0.006 at 20°C, how much is the temperature of the liquid?

A. 0°C

B. -20°C

C. 17.6°C

D. none of these

Solution:

597. The copper field coils of a motor was measured at 21°C and found to have a resistance of 68 Ω. After the motor has run for a given time, the resistance is found to be 96 Ω. What is the hot temperature of the winding?

A. 106.36°C

B. 166.30°C

C. 103.66°C

D. none of these

Solution:

598. A wire has a resistance of 30 Ω at 20°C. What will its resistance be at 60°C? Assume the temperature coefficient of resistance to be 0.000385 at 20°C.

A. 34.26 Ω

B. 36.42 Ω

C. 32.46 Ω

D. none of these

Solution:

599. Determine the length of a copper wire (ρ = 10.37 Ω-CM/ft) where diameter is 0.30 inch and resistance of 0.5 Ω at 20°C.

A. 4,339 ft

B. 5.225 ft

C. 6,125 ft

D. none of these

Solution:

600. An electric water heater has a rating of 1 kW, 230 V. The coil used as the heating element is 10 m long and has a resistivity of 1.724 x 10^-6 ohm-cm. Determine the required diameter of the wire in mils.

A. 2.43 mils

B. 2.52 mils

C. 3.21 mils

D. 1.35 mils

Solution:

#### Questions and Answers in Electrical Circuit

Following is the list of practice exam test questions in this brand new series:

MCQ in Electrical Circuit
PART 1: MCQ from Number 1 – 50                        Answer key: PART 1
PART 2: MCQ from Number 51 – 100                   Answer key: PART 2
PART 3: MCQ from Number 101 – 150                 Answer key: PART 3
PART 4: MCQ from Number 151 – 200                 Answer key: PART 4
PART 5: MCQ from Number 201 – 250                 Answer key: PART 5
PART 6: MCQ from Number 251 – 300                 Answer key: PART 6
PART 7: MCQ from Number 301 – 350                 Answer key: included
PART 8: MCQ from Number 351 – 400                 Answer key: included
PART 9: MCQ from Number 401 – 450                 Answer key: included
PART 10: MCQ from Number 451 – 500                 Answer key: included

### Complete List of MCQ in Electronics Engineering per topic

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