Process Technology Equipment
CHAPTER 20 Auxiliary Equipment
4. What type of mixer feeds dry and liquid products together to produce a
clustered product?
A. Inline mixer
B. Drum mixer
C. Agglomerators
D. Dynamic mixer
5. Which of the following is a disadvantage of ejectors?
A. They require a large amount of energy.
B. They are hard to install.
C. They are expensive.
D. They are hard to maintain.
Process Technology Equipment
CHAPTER 20 Auxiliary Equipment
6. What type of auxiliary device promotes separation of liquids from gases?
A. Demister
B. Jet pump eductor
C. Centrifuge
D. Hydrocyclones
7. Which of the following pieces of equipment does not come with a risk of
possible exposure to moving equipment?
A. Mixer
B. Agitator
C. Demister
D. Agglomerator
Process Technology Equipment
CHAPTER 20 Auxiliary Equipment
Page 15
8. Which of the following is the symbol for an eductor?
A.
B.
C.
D.
9. Which of the following is the symbol for a centrifuge?
A.
B.
Process Technology Equipment
CHAPTER 20 Auxiliary Equipment
C.
D.
1. Which of the following is an example of a drum mixer?
A. Washing machine
B. Cement truck
C. Kitchen mixer
D. Garden hose
Process Technology Equipment
CHAPTER 20 Auxiliary Equipment
Page 17
2. Why are eductors reliable pieces of equipment?
A. They have no moving parts.
B. They are very corrosion-resistant.
C. They are very erosion-resistant.
D. All of the above
3. What type of auxiliary device promotes separation of heavy and light liquids
by centripetal force?
A. Demister
B. Jet pump eductor
C. Centrifuge
D. Hydrocyclones
Process Technology Equipment
CHAPTER 20 Auxiliary Equipment
Page 18
4. Which of the following pieces of equipment can cause process upset due to
low flow?
A. Mixer
B. Demister
C. Centrifuge
D. Agglomerator
5. Which of the following is the symbol for an inline mixer?
A.
B.
C.
D.
Process Technology Equipment
CHAPTER 20 Auxiliary Equipment
Page 19
Process Technology Equipment
CHAPTER 20 Auxiliary Equipment
Page 20
APPENDIX, Chapter 20
Table of Contents
Contents
Page
Checking Your Knowledge Answer
Key
21
Process Technology Equipment
CHAPTER 20 Auxiliary Equipment
Checking Your Knowledge Answer Key
1. Define the following terms:
a. Agitator
b. Centrifuge
c. Eductor
d. Hydrocyclone
e. Venturi effect
2. How do agitators function?
a. By creating a complex flow path
b. By rotating the combined products in a clockwise direction
c. By feeding dry products into the liquid
d. By stirring the contents of a vessel and creating turbulence
Process Technology Equipment
CHAPTER 20 Auxiliary Equipment
3. (True or False) A cement truck is an example of a drum mixer.
4. Why are eductors reliable pieces of equipment?
a. They have no moving parts.
b. They require no maintenance.
c. They are inexpensive.
d. They are easily available.
5. A jet pump eductor is designed to be used in the following area(s): (Select all
that apply.)
a. areas that need to be drained
b. areas that may contain high levels of debris
c. areas that may contain combustible fluids
d. areas that need more fluid added to the process
Process Technology Equipment
CHAPTER 20 Auxiliary Equipment
Page 23
6. (True or False) In a hydrocyclone, incoming liquid enters through the bottom
of the vessel.
7. List the three items included in demister designs.
8. Which of the following types of auxiliary equipment can cause exposure to
moving equipment? (Select all that apply.)
Process Technology Equipment
CHAPTER 20 Auxiliary Equipment
a. Agitator
b. Eductor
c. Centrifuge
d. Demister
9. Proper operation of the rotating equipment like the agitator, mixer,
agglomerator, and centrifuge includes: (Select all that apply.)
a. having machine guards in place
b. running the equipment at designed speed of rotation
c. turning equipment on/off every shift
d. starting the process at 100 RPM per hour