#1
Which of the following is a unit of electric current?
#2
What is the SI unit of power?
#3
In electrical circuits, what does the acronym AC stand for?
Alternative Current
Amperage Control
Direct Current
Amplitude Coefficient
#4
In a DC circuit, what does Ohm's Law state?
V = IR
P = VI
I = R/V
R = V/I
#5
What is the purpose of a flywheel in a mechanical system?
To store and release energy
To control fluid flow
To amplify electrical signals
To measure temperature
#6
What is the function of a capacitor in an electrical circuit?
To regulate current flow
To store and release electrical energy
To amplify signals
To convert AC to DC
#7
Which law states that the total current entering a junction in a circuit is equal to the total current leaving the junction?
Kirchhoff's Voltage Law
Ohm's Law
Kirchhoff's Current Law
Faraday's Law
#8
What is the purpose of a diode in an electronic circuit?
To amplify signals
To store electrical energy
To allow current flow in one direction
To regulate voltage
#9
Which type of material is commonly used as a semiconductor in electronic devices?
Copper
Silicon
Aluminum
Gold
#10
What does the term 'induction motor' refer to in electrical engineering?
A motor using magnetic induction to generate torque
A motor powered by solar energy
A motor using direct current
A motor for mechanical induction
#11
In mechanics, what does the term 'torque' represent?
Force applied at a distance, causing rotation
Energy stored in a system
Linear acceleration
Pressure in a fluid
#12
What is the role of a transformer in an electrical system?
To store electrical energy
To convert AC to DC
To change voltage levels
To regulate current flow
#13
What is the primary function of a gearbox in a mechanical system?
To amplify electrical signals
To regulate fluid flow
To control temperature
To change speed and torque
#14
What is the purpose of a solenoid in an electrical system?
To store and release energy
To convert AC to DC
To generate a magnetic field
To amplify electrical signals
#15
In mechanics, what is the law of conservation of angular momentum?
Angular momentum is constant if no external torque acts on the system
Angular momentum is constant only in circular motion
Angular momentum is always increasing
Angular momentum depends on the mass of the object