1. Directions
You will read passages on the topic and then answer questions about them. You may find vocabulary at the end of the test. Read the questions carefully before choosing the correct answers.2. Questions of the test
Question 1. What is a balloon filled with that allows it to float in the air?
A) Water
B) Gas or heated air
C) Ballast
D) Fabric
Question 2. What are giant balloons used for in parades?
A) Advertising
B) Scientific experiments
C) Entertainment
D) Recreation
Question 3. What gas is used for balloons that are held down with ropes in parades?
A) Hydrogen
B) Helium
C) Heated air
D) None of the above
Question 4. What is the purpose of the propane burner in a hot-air balloon?
A) To keep the air inside the bag hot
B) To release gas through the valve
C) To hold the balloon on the ground
D) To control the movement of the balloon
Question 5. How is the movement of a free passenger balloon largely controlled?
A) By the wind
B) By the amount of gas released through the valve
C) By the amount of ballast on board
D) By the person operating the balloon