WorksheetsProtection Systems, Waveforms and Signals
Total questions: 9
Worksheet time: 9mins
Name
Class
Date
1.
What is the main purpose of protection systems?
a)
To save energy
b)
To isolate faulty circuits
c)
To improve signal quality
d)
To reduce cost
2.
How do distance relays operate?
a)
By sensing temperature
b)
By monitoring sound
c)
By comparing voltages
d)
By measuring distance
3.
What does an inverse time overcurrent relay do?
a)
It operates slower at higher currents
b)
It operates faster at lower currents
c)
It operates faster at higher currents
d)
It operates at a constant speed
4.
What can cause a lightning strike?
a)
High humidity
b)
Low wind speed
c)
High air resistance
d)
Air losing its insulating property
5.
What is a sine wave?
a)
A type of digital signal
b)
A constant voltage
c)
A waveform with one frequency
d)
A triangular waveform
6.
What type of signal can an analogue signal represent?
a)
Binary data
b)
Voltage spikes
c)
Temperature
d)
Digital codes
7.
What is a digital signal typically represented by?
a)
Continuous values
b)
Two voltage values
c)
Multiple frequencies
d)
Single frequency
8.
What is a logic gate used for?
a)
Converting AC to DC
b)
Storing data
c)
Processing inputs
d)
Amplifying signals
9.
In digital logic design, what do the terms fan-in and fan-out refer to?
a)
The number of transistors used in a logic gate and the number of gates connected to a power source.
b)
The number of logic inputs a gate can handle and the number of logic outputs it can drive.
c)
The speed of signal propagation through a gate and the delay caused by multiple inputs.
d)
The amount of power consumed by a logic gate and the maximum number of gates on a circuit board.
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