1.
What is the purpose of a relay in an electrical circuit?
Measure current
Store energy
Control circuit switching
Generate electricity
2.
A town's recycling rate has increased by 40% this year. What is the most likely cause?
A new recycling education program was implemented
Fines for not recycling were introduced
The town provided free recycling bins
Landfill fees were increased
3.
A country's literacy rate has improved significantly over the past five years. What is the most probable reason?
The government increased education funding
A new teaching method was introduced
More libraries were built
Stricter truancy laws were implemented
4.
What is the function of a rectifier in an electrical circuit?
Amplify voltage
Convert AC to DC
Measure current
Store energy
5.
A company's productivity has increased after implementing a four-day work week. What is the most probable cause?
Employees are working longer hours
The company hired more staff
Employees are more focused and less stressed
The company invested in new technology
6.
A restaurant's online reviews have improved dramatically. What is the most plausible reason?
They hired a new chef
They lowered their prices
They improved their customer service
They renovated the dining area
7.
What is the function of a thermostat in a heating system?
Generate heat
Control temperature
Measure humidity
Reduce energy consumption
8.
Which of the following is an example of a second-class lever?
Nutcracker
Crowbar
Tweezers
Hammer claw
9.
A country's birth rate has declined steadily over the past decade. What is the most probable explanation?
The cost of living has increased
More women are pursuing careers
There's been a cultural shift towards smaller families
The country has implemented stricter immigration policies
10.
What is the function of a governor in a mechanical system?
Increase speed
Regulate speed
Measure torque
Generate power
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