Multiple Choice
Identify the choice that best completes the statement or answers the question.
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1. |
A pressure gauge that reads 100 PSIA is indicating_______PSI
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a. |
100 |
c. |
85.3 |
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b. |
3.61 |
d. |
114.7 |
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2. |
The specific gravity of a gas is the ratio of the density of the gas to the density of_________.
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a. |
hydrogen |
c. |
water |
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b. |
air |
d. |
gasoline |
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3. |
A temperature of 273.15º Kelvin is the same as _______º Celsius.
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a. |
-186.64 |
c. |
100 |
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b. |
212 |
d. |
0 |
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4. |
A circuit has a 100W resister, a 50W resistor, and a 200W resistor all in parallel with each other. What is the total resistance?
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a. |
28.6W |
c. |
175W |
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b. |
350W |
d. |
28 MW |
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5. |
Primary standard reference units and physical constants are maintained by _______.
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a. |
the plant instrument shop |
c. |
NIST |
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b. |
testing labs |
d. |
instrument tech’s |
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6. |
You have a standar pneumatic instrument loop with a span of 200 units, what is the steady state gain?
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a. |
.06 PSI/unit |
c. |
.075 PSI/unit |
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b. |
.12 PSI/unit |
d. |
.08 PSI/unit |
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7. |
________ control is often used when a specific blend of two different materials is required.
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a. |
cascade |
c. |
feed forward |
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b. |
ratio |
d. |
feedback |
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8. |
There are a total of ______ time constants from the start point of a setpoint change and reaching the final setpoint.
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9. |
An instrument location plan _____________ of each instrument.
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a. |
shows the location, elevation, and tag number |
c. |
shows the specification number, and tag number |
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b. |
shows the location, specification number, and elevation |
d. |
shows the location, and wiring plan |
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10. |
Maintenance that occurs following equipment failure is called ______ maintenance.
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a. |
creative |
c. |
corrective |
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b. |
preventive |
d. |
predictive |
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11. |
The single most important document in a drawing package defining and organizing a project is/are the _________.
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a. |
specification sheets |
c. |
layout drawings |
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b. |
P&IDs |
d. |
PFDs |
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12. |
PLC programs use ______ logic to control the process.
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a. |
relay |
c. |
analog |
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b. |
standard |
d. |
ladder |
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13. |
A magnetic flowmeter determines the flow of a process material by measuring the _____ of the fluid.
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a. |
velocity |
c. |
temperature |
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b. |
density |
d. |
volume |
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14. |
A _________ only controller will have an offset from the desired setpoint.
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a. |
pneumatic |
c. |
integral |
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b. |
proportional |
d. |
derivative |
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15. |
With a direct acting controller an increasing input will cause a(an)______ output.
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a. |
decreasing |
c. |
continuous |
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b. |
increasing |
d. |
pulsating |
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16. |
A(an) ______ error must be corrected when a pressure transmitter is located lower than the bottom of the vessel being measured.
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a. |
suppression |
c. |
elevation |
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b. |
zero |
d. |
span |
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17. |
A process where material is fed and removed from the process at the same time is called a______ process.
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a. |
batch |
c. |
distillation |
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b. |
continuous |
d. |
separation |
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18. |
The controlled variable may also be the ___________ variable.
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a. |
disturbance |
c. |
measured |
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b. |
manipulated |
d. |
handled |
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19. |
The density of water at standard temperature and pressure (STP) is ______ lbs.ft3.
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a. |
62.4 |
c. |
27.7 |
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b. |
14.7 |
d. |
0.433 |
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20. |
The region between the limits within which a quantity is measured, received, or transmitted, expressed by stating the lower and upper limits is called the _______.
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a. |
span |
c. |
zero |
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b. |
linearity |
d. |
range |
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