# RL Circuits MCQ Electrical Engineering

50 Questions 30 Mins

### About RL Circuits

Following are some of the multiple choice questions on the RL Circuits with answers that will help the students in developing their knowledge.

## RL Circuits MCQ

• True
• False

• True
• False

• True
• False

### 4. Inductance is a ________ value, while resistance is a ________ value.

• floating, static
• reactive, dynamic
• dynamic, static
• dynamic, reactive

### 5. In A RL AC Circuit The sum of resistance and reactance is referred to as ________.

• geometric resistance
• conductance
• impedance
• susceptance

### 6. Resistance and reactance must be added geometrically because ________.

• inductor current lags inductor voltage by 90 degrees
• resistor current is in phase with resistor voltage
• they are out of phase
• all of the above

### 7. In an RL circuit, the product of current and voltage is referred to as ________.

• apparent power
• imaginary power
• reactive power
• true power

### 8. Inductor quality is determined by ________.

• operating frequency
• coil winding resistance
• the inductance of the coil
•  all of the above

• True
• Fals

• True
• False

• MOSFET
• BJT
• IGBT
• JFET

### 12. What type of semiconductor is used in LED electronic circuits?

•  Intrinsic semiconductor
•  Compound semiconductor
•  Degenerate semiconductor
• Compensated semiconductor

• Compound
•  Elemental
• Degenerative
• Compensated

### 14. Which of the following effects is responsible for violating the mass action law indegenerative type semiconductor electronic devices?

• Thermal effect
• Bandgap narrowing effect
• Lattice vibration effect
• Electronic drift effect

### 15. The deviation in the resistance of a resistor is known as

• tolerance
• capacitance
• inductance
• none of the above

### 16. An electronic component used to store electric charge is

• inductor
• resistor
• capacitor
• none of these

### 17. We can construct exclusive -OR gate using which other gates?

• AND, NOT  and  OR gate only
• AND and NAND gate only
• OR gate only
• all of these

### 18. When the temperature of the semi-conductor is increased, the conductivity will …

• decreases
• increases
• same every time
• all of the above

• Schottky
• Varactor
• Tunnel
• Zener

• AC
• Pulsating DC
• Filtered DC
• DC

### 21. When a PN junction is forward biased

• Depletion region decreases
• Minority carries are not Attested
• Holes and electrons move away from junction
• All of above

### 22. Ceramic rings are used as _______.

• Bonding agent
• Strong coupler
• Impedance regulator
• Insulator

### 23. As frequency increases

• both series and parallel RL impedance decrease
• series RL impedance decreases and parallel RL  impedance increases
• series RL impedance increases and parallel RL  impedance decreases
• both series and parallel RL impedance increase

•  u ∝ T-3/2
•  u ∝ T-1/2
•  u ∝ T
• u ∝ T-1

•  Capacitor
• Inductor
• Diode
• Temperature

### 26. Which resistive component is designed to be temperature sensitive?

• Thermistor
• Rheostat
• Potentiometer
• Photoconductive cell

### 27. A voltage will influence current only if the circuit is:

• OPEN
• INSULATED
• HIGH RESISTANCE
• CLOSED

• 4V
• 60V
• 15V
• 0.25V

### 29. How is Aunt Amy similar to the kids on the trip?

• Aunt Amy and the family do things quickly.
• She has fun and does adventurous things like Nelson and Mary.
• Aunt Amy and John are both scared about going over the waterfall
• She is bothersome like Sam and should spend the day with Grandma.

### 30. About which event do the kids and the adults agree?

• Sam is a pest and is not wanted on the trip.
• The water is freezing and no one should play in it.
• Everyone was scared that Jouh almost went over the waterfall
• Jumping into Midnight Hole from the high rocks was the best part of the day.

### 31. How do John's emotions change from the beginning to the end of the story?

• He was nervous but excited about hiking, but then felt lucky and happy about going to Midnight Hole.
• He was freezing and unhappy because the water was cold, but then became stuck and scared in the waterfall.
• In the beginning, he was excited and happy, but became scared by the waterfall and felt lucky when he was safe.
• In the beginning, he was impatient and restless about hiking with his family, but then became calm and confident when he jumped over the falls.

### 32. Which explains how John and Nelson felt about jumping from the rocks into the deep water?

• Nelson jumped right off the rocks into the deep water, but John waited until last to jump because he was a little bit nervous.
• John and Nelson were both nervous about jumping off the rocks because they were higher up than they looked.
• John jumped right off the rocks into the deep water and waited patiently for Nelson to jump next.
• John and Nelson waited with the adults before they swam into the cold water with the other kids.

### 33. How do John and Nelson act differently when John nearly goes over the waterfall?

• John is calm most of the time, and Nelson does not know how to help him.
• John is upset at the adults for not helping him, and Nelson is trying to stop him.
• John is scared of going over the waterfall, and Nelson stays calm while saving him.
• John is mad at himself for being careless, and Nelson does not know what to do next.

### 34. Which is the purpose of the statement, "It all happened so fast, it took our brains a minute to catch up with our bodies"?

• To emphasize the ride's overwhelming speed.
• To express the ride's ability to rattle the mind.
• To demonstrate the ride's powerful locomotion.
• To explain the ride's unbelievable height, twists, and turns.

### 35. Why does the narrator ask, "Did we scream"?

• The beating of the children's hearts was so loud in their own ears they could not hear their screams.
• The screams of the other riders make it too difficult to hear their own excited screams.
• The ride is so thrilling and intense that it is over before they are even aware of their own screams.
• The force that pushes the riders back into their seats also weakens any screams made by the riders.

### 36. Which statement implies the children were nervous about riding Scary Mountain?

• "It was so high and fast, we could not believe it."
• "Almost every rider screamed when it took off."
• "We thought about chickening out."
• "We were so high up and we got there so quickly."

### 37. Which sentence from the selection supports the idea that the trip provided a variety of enjoyable activities?

• "Mom and Dad were taking Matt and me to Spin N Splash for the day."
• "It has over 75 rides,including 17 roller coasters."
• "It is the best place in the world!"
• "We had been to Spin N Splash before and had ridden almost all of the rides."

### 38. Which sentence from the selection describes the advantage of a rollback?

• "A computer launches the Scary Mountain trains."
• "Sometimes it does not give the train enough speed to get over the hill."
• "'We would get two rides.'"
• "'We're already going to be scared out of our minds anyway.'"

• Résistance
• Condensateur

### 42. A/n ______________________________________ is one in which there is an opening that does not allow current to flow.

• Open circuit
• Closed circuit
• Series circuit
• Parallel ciruit

### 44. Quel composant d'un circuit RC est responsable de la dissipation d'énergie ?

• La résistance
• Le condensateur
• La self
• All of above

### 45. A complete electric circuit that allows electrons to flow along an uninterrupted path is called a/n ___________________.

• Open circuit
• Closed ciruit
• Electric circuit
• Series circuit

• true
• false

### 47. What is a switch's function in a circuit?

• to make the current hotter or colder
• turn on and off the flow of electrical current
• the pathway that electrical current flows
• to add more power to the circuit

• open
• closed

### 49. Which best describes a simple series circuit?

• Electricity flows along one pathway.
• The flow of electricity comes from the switch.
• Electricity flows along many pathways.
• The flow of electricity comes from the light bulb.

### 50. Current is...

• how fast the electrons are moving
• the flow of electrical charge
• the power source
• the amount of energy gained/lost across two points