1.
A country's life expectancy has increased significantly. What is the most likely reason?
The country improved its healthcare system
The country's economy has grown
The country banned smoking in public places
The country increased retirement age
2.
Which of the following is not a type of valve?
Gate valve
Ball valve
Check valve
Piston valve
3.
A city's traffic congestion has reduced significantly after implementing a new policy. What is the most plausible explanation?
The city expanded public transportation
Many people moved out of the city
A new highway was built
The city implemented congestion pricing
4.
A city's recycling rate has increased by 40%. What is the most likely cause?
The city implemented a new recycling education program
Fines for not recycling were introduced
The city provided free recycling bins
Landfill fees were increased
5.
A person is seen pacing back and forth in a waiting room. What is the most plausible explanation?
They are nervous
They are impatient
They are thinking deeply
They are in pain
6.
Which of the following is an example of an inclined plane?
Lever
Pulley
Ramp
Gear
7.
A woman is seen watering her plants during a rainstorm. What is the most plausible explanation?
She forgot it was raining
The rain isn't reaching the plants effectively
She wants to use up the water in her can
She enjoys being outside during the rain
8.
A company's employee retention rate has improved dramatically. What is the most probable cause?
The company increased salaries
The job market has worsened
The company introduced better work-life balance policies
The company threatened to outsource jobs
9.
A country's birth rate has increased after years of decline. What is the most likely reason?
The government introduced new family-friendly policies
The economy has improved
There's been a cultural shift towards larger families
The country has restricted access to contraception
10.
What is the function of a rectifier in an electrical circuit?
Amplify voltage
Convert AC to DC
Measure current
Store energy
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