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
Answer: Option A
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
Answer: Option B
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
Answer: Option D
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
Answer: Option D
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
Answer: Option B
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
Answer: Option C
Solution:
ECE Board Exam November 1996
557. Electric charge of neutron is the same as __________.
A. atom
B. electron
C. current
D. proton
Answer: Option A
Solution:
ECE Board Exam April 1998
558. Ion is _________.
A. free electron
B. nucleus without protons
C. proton
D. an atom with unbalanced charges
Answer: Option D
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
Answer: Option B
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%
Answer: Option D
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
Answer: Option C
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
Answer: Option B
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%
Answer: Option B
Solution:
ECE Board Exam November 1996
564. Electric energy refers to _________.
A. Joules divided by time
B. Volt-ampere
C. Watt
D. Volt-coulomb
Answer: Option D
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
Answer: Option B
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
Answer: Option C
Solution:
ECE Board Exam November 2000
567. The ability to do work
A. energy
B. kinetic
C. potential
D. voltage
Answer: Option A
Solution:
ECE Board Exam November 2001
568. Which type of variable resistor should you use for controlling large amount of current?
A. Potentiometer
B. Adjustable wirewound
C. Variac
D. Rheostat
Answer: Option B
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
Answer: Option D
Solution:
ECE Board Exam November 2000
570. Ten micro-microfarads is equivalent to __________.
A. 100 picofarads
B. 100 nanofarad
C. 1000 milli microfarad
D. 10.0 picofarads
ECE Board Exam November 1995
Answer: Option B
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
Answer: Option D
Solution:
ECE Board Exam November 2001
572. A variable resistor normally used as a voltage divider
A. Carbon film resistor
B. Potentiometer
C. Adjustable resistor
D. Metal film resistor
ECE Board Exam April 2001
Answer: Option B
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
Answer: Option A
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
Answer: Option C
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%
Answer: Option D
Solution:
ECE Board Exam November 1997
576. Rust in electrical (wire) connections will result to __________.
A. Conductance
B. Resistance
C. Voltage
D. Inductance
Answer: Option B
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
D. One steradian
Answer: Option C
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
Answer: Option A
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
Answer: Option C
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
Answer: Option D
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%
Answer: Option A
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%
Answer: Option D
Solution:
ECE Board Exam November 1998
583. Resistor with colored bands in the body
A. Adjustable resistor
B. Wire-wound resistor
C. Variable resistor
D. Carbon composition resistor
Answer: Option D
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%
Answer: Option C
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
Answer: Option B
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
Answer: Option D
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%
Answer: Option B
Solution:
ECE Board Exam April 1998
588. What happens to the resistance of a conductor wire when its temperature is lowered?
A. Decreased
B. Steady
C. Zero
D. Increased
Answer: Option A
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
Answer: Option D
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
Answer: Option C
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
Answer: Option B
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
Answer: Option A
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
Answer: Option C
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
Answer: Option C
Solution:
595. Current is simply _________.
A. Flow of electrons
B. Flow of protons
C. Radiation
D. Emission
Answer: Option A
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
Answer: Option A
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
Answer: Option D
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
Answer: Option D
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
Answer: Option A
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
Answer: Option B
Solution:
Questions and Answers in Electrical Circuit
Following is the list of practice exam test questions in this brand new series:
