Chapters 10-12

Question 1

Process fluid that is sent to the furnace to be heated is the:

Answer 1

Charge

Question 2

Incomplete combustion produces a poisonous gas called
A. Carbon Dioxide
B. Nitrogen Oxide
C. Carbon Monoxide

Answer 2

C. Carbon Monoxide

Question 3

Material that reflects heat back to furnace

Answer 3

Refractory

Question 4

Tubes directly above firebox of furnace

Answer 4

Shock Bank

Question 5

Flames in the firebox of a furnace is a source of:
A. Conductive heat transfer
B. Radiant heat transfer
C. Convective heat transfer

Answer 5

B. Radiant heat transfer

Question 6

What are carbon deposits in the tubes of a furnace called? 
A. Coking
B. Carbon spots
C. Charge
D. Draft

Answer 6

B. Coking

Question 7

Glowing red spot on the metal or refractory inside a furnace
A. Hot spot
B. Flame spot
C. Coking
D. Flameout

Answer 7

A. Hot Spot

Question 8

What section of the furnace has the highest temperature?
A. Radiant tubes
B. Bridgewall
C. Convection section

Answer 8

A. Radiant tubes

Question 9

Where are the convection tubes located in a furnace?
A. Bridgewall
B. Firebox
C. Roof

Answer 9

C. Roof

Question 10

Where are the radiant tubes located in a furnace
A. Bridgewall
B. Firebox
C. Roof

Answer 10

B. Firebox

Question 11

Tubes located directly above the firebox of a furnace that receive radiant and convective heat – part of the convection section

Answer 11

Shock Bank

Question 12

List the basic elements of a control loop.

Answer 12

Sensor, transmitter, controller, final control element, transducer

Question 13

DCS is
A. Distributed Control System
B. Dispersed Computer System
C. Distributed Computer System

Answer 13

A. Distributed Control System

Question 14

Complete combustion will produce 
A. soot
B. water and carbon dioxide
C. water and carbon monoxide
D. nothing

Answer 14

B. water and carbon dioxide

Question 15

Pressure inside furnace is usually slightly _____ than atmospheric pressure.
A. lower
B. higher

Answer 15

A. lower

Question 16

Burner designed to reduce the amount of nitrogen oxide produced in a burner is
A. atomizer
B. low nitrogen oxide burner
C. low CO2 burner

Answer 16

B. low nitrogen oxide burner

Question 17

Flame impingement can develop carbon deposits called:
A. coke
B. pepsi
C. soot
D. trash

Answer 17

A. coke

Question 18

The charge to the furnace enters convection section and exits the ____ section
A. Convection
B. Radiant
C. Bridgewall

Answer 18

B. Radiant

Question 19

Furnace that used fan to blow air into the burner is 
A. induced draft
B. forced draft
C. blow draft
D. cabin

Answer 19

B. forced draft

Question 20

A remote controller is located:
A. in the field
B. in the control room
C. outside the plant battery
D. inside the rover's truck

Answer 20

B. in the control room

Question 21

A local controller is located:
A. in the field (near the instrument)
B. in the control room
C. outside the plant battery
D. inside the rover's truck

Answer 21

A. in the field (near the instrument)

Question 22

Process fluid sent to the furnace
A. Charge
B. Feed
C. Source
D. Elemental

Answer 22

A. Charge

Question 23

A flow meter that allows fluid to move through a clear tapered tube:

Answer 23

Rotameter

Question 24

Instruments are represented on a P&ID by:
A. triangles
B. squares
C. balloons
D. footnotes

Answer 24

C. balloons

Question 25

Complex diagram that uses symbols to represent piping, instruments, etc. A. BFD B. PFD C. P&ID

Answer 25

C. P&ID

Question 26

``` A 3-15 PSI signal is A. pneumatic B. electronic analog C. digital D. hydraulic ```

Answer 26

A. pneumatic

Question 27

``` When a controller is in automatic mode, the operator has control of: A. the setpoint B. output to the final control element C. manual gate valve D. safety relief valve ```

Answer 27

A. the setpoint

Question 28

``` When a controller is in manual mode, the operator has control over: A. the setpoint B. output to the final control element C. manual gate valve D. safety relief valve ```

Answer 28

B. output to the final control element

Question 29

``` In a control loop, the setpoint is the A. output to FCE B. error calculated by controller C. tuning parameter D. desired value of the process variable ```

Answer 29

D. desired value of the process variable

Question 30

``` If level transmitter is located at 10ft, and the level is actually at 15ft, what will the level indicator show: A. 50% B. 100% C. 150% D. 0% ```

Answer 30

B. 100%

Question 31

Using orifice plate to measure flow: A. lower dP is a higher flow rate B. higher dP is a higher flow rate

Answer 31

B. higher dP is a higher flow rate

Question 32

Two dissimilar metal wires connected at one end; voltage change with change is temperature. A. Thermocouple B. Thermowell C. RTD

Answer 32

A. Thermocouple

Question 33

Charge enters furnace in convection section and exits in the ____ section.

Answer 33

radiant

Question 34

Atmospheric pressure at sea level is: A. 14.7 PSIA B. 14.7 PSIG

Answer 34

A. 14.7 PSIA