ENSCIMA

Directions: Read each item carefully and choose the letter of the best answer. Write your chosen letter on a separate of paper.

1. In 54 - 36 ÷ 9 + 14 = n, what is the value of n?

• A. 10

• B. 16

• C. 36

• D. 64

2. 10² means _____ x _____

• A. 10 x 10

• B. 10 x 2

• C. 10 x 5

• D. two times 10

3. 100 ÷ (25 - 20) is equal to _____.

• A. 9.5

• B. 10

• C. 19

• D. 20

4. What is the value of n in the equation (20 - 6) + (9 - 6) x 16 = n?

• A. 62

• B. 73

• C. 270

• D. 272

5. Simplify, (5 x 8) x [40 - (320 ÷ 80) ] = n.

• A. 120

• B. 73

• C. 1 440

• D. 1 590

6. Which is a liquid waste?

• A. bottled water

• B. juice

• C. used oils

• D. vinegar

7. What is sewage? Sewage is a _________________.

• A. solid waste

• B. liquid waste

• C. gaseous waste

• D. mixture of solid and gas

8. Which of the following is a hazardous waste material?

• A. water from sinks

• B. water from laundering

• C. empty chemical container

• D. black water used to flush toilets

9. Liza is arranging their kitchen cabinet. She found out some empty bottles in it. What would be the best way to dispose the empty bottles?

• A. Bury the empty bottles

• B. Dump the empty bottles in the canal.

• C. Sold the empty bottles to the junkshop.

• D. Throw the empty bottles in the garbage can.

5. Anabelle brought some grocery items from the store. The vendor puts the grocery items in the plastic bags. She then emptied them at home. What 5R's technique she should do with the plastic bags?

• A. Recover

• B. Reduce

• C. Repair

• D. Reduce