Applied Sciences Online Test

1. Which one of the following is the pH value of normal rain?

2. Which of the following is the most common naturally occurring isotopes of hydrogen?

3. Which one of the following is the common component of gas masks?

4. Which one of the statements is untrue?

5. The drum of a photostat machine is made up of which one of the following elements?

6. Which one of the following produces electricity in them as a defensive mechanism?

7. Noise level above which one of the following limits can cause death in human beings?

8. Coagulation of which one of the following protein is responsible for the formation of curd?

9. The falling of milk teeth begins with the first permanent growth of which one of the following teeth?

10. With which one of the following is angioplasty associated?

11. Which one of the following gases is a safe and effective extinguishers for all confined fires?

12. Which one of the following species is an example of a living fossil?

13. Blood coagulates outside human body in five to ten minutes. Which one of the following substances is used to stop coagulation and preserve the blood for transfusion?

14. Which one of the following is used as catalyst in the manufacturing of artificial diamonds?

15. All life in the ocean is divided into three main groups. Which one among the following is not among them?