Ins. Test Questions
Test Questions
- 1.
The first thing you should do before using an aerosol is to ____ .
- A.
Shake the can vigorously
- B.
Put on a respirator
- C.
Open all doors and windows, if inside
- D.
Read the instructions and warning statements.
Correct Answer
D. Read the instructions and warning statements. -
- 2.
The meter-kilogram-second (MKS) system and the centimeter-gram-second (CGS) system are part of the English system of measure.
- A.
True
- B.
False
Correct Answer
B. False -
- 3.
The amount of matter in an object is its ___ .
- A.
Weight
- B.
Force
- C.
Mass
- D.
Pressure
Correct Answer
C. Mass -
- 4.
The selection and interconnection of devices in an instrumentation channel that ultimately determine the stability of the process are referred to as the ___ .
- A.
Control loop
- B.
Process system
- C.
Selective design
- D.
Instrumentation trade
Correct Answer
A. Control loop -
- 5.
The component attached to a control valve that compares the stem motion of the valve to the signal from the controller is the ___ .
- A.
Actuator
- B.
Plug stem
- C.
Diaphragm
- D.
Positioner
Correct Answer
D. Positioner -
- 6.
Which one of the following positioners may interface with a PAM program ?
- A.
Pneumatic
- B.
Analog
- C.
Intelligent
- D.
I/P
Correct Answer
C. Intelligent -
- 7.
Switches designed to be activated mechanically by the motion of machinery are called ___ switches .
- A.
Pressure
- B.
Limit
- C.
Float
- D.
Photoelectric
Correct Answer
A. Pressure -
- 8.
An advantage of using an electrostatic precipitator is its ___ .
- A.
Application to the entire gas stream
- B.
Low electrical cost
- C.
High pressure drop
- D.
Discharge even when no particles are present
Correct Answer
B. Low electrical cost -
- 9.
In most combination filter/dryer systems, the system works best if the compressed air provided is first ___ .
- A.
Increased to 50 psig
- B.
Filted to 5 microns
- C.
Cooled to below 32.4 deg F
- D.
Dried in a refrigeration-type air dryer
Correct Answer
D. Dried in a refrigeration-type air dryer -
- 10.
The opposition to current flow offered by the capacitance of a circuit is known as ___ .
- A.
Mutual reactance
- B.
Capacitive resistance
- C.
Inductive reactance
- D.
Capacitive reactance
Correct Answer
B. Capacitive resistance -
- 11.
RTD s incorporate pure metals or certain alloys that decrease in resistance as temperature increases .
- A.
True
- B.
False
Correct Answer
B. False -
- 12.
One method to protect against EMS is to install a ground loop .
- A.
True
- B.
False
Correct Answer
B. False -
- 13.
A ___ counter is a simple device that can be used to count up in binary code .
- A.
Ripple
- B.
Parallel
- C.
Synchronous
- D.
Ring
Correct Answer
A. Ripple -
- 14.
An arithmetic element that can preform addition, subtraction, multiplication, and division is known as a ___ .
- A.
Adder
- B.
Full adder
- C.
Counter
- D.
Augend
Correct Answer
B. Full adder -
- 15.
ANSI standards Q91, Q92, and Q93 are technically equivalent to Intermational Standards ISO 9001, 9002, and 9003 .
- A.
True
- B.
False
Correct Answer
A. True -
- 16.
Differential pressure is the sum of the low-side pressure and the high-side pressure on a DP transmitter .
- A.
True
- B.
False
Correct Answer
B. False -
- 17.
Wally Boxs generate dry, regulated instrument air .
- A.
True
- B.
False
Correct Answer
B. False -
- 18.
The first component in a control loop to have contact with the process is the ___ .
- A.
Control valve
- B.
Final element
- C.
Transducer
- D.
Primary element
Correct Answer
D. Primary element -
- 19.
If a controller in a loop is put in manual mode, the control valve in that loop should be ___ .
- A.
Fully closed
- B.
Fully open
- C.
Steady-not moving
- D.
Modulating
Correct Answer
C. Steady-not moving -
- 20.
Proportional control occurs within a specified band around the ___ .
- A.
Setpoint
- B.
Gain
- C.
Valve position
- D.
Errer
Correct Answer
A. Setpoint -
- 21.
The ___ equation is used to find out what percent a process has changed in a given time.
- A.
PID loop
- B.
Time constant
- C.
Process gain
- D.
Compleat response
Correct Answer
D. Compleat response -
- 22.
The derivative constant of a controller is expressed in units of ___ .
- A.
Gain
- B.
Percentage
- C.
Seconds
- D.
Minutes
Correct Answer
C. Seconds -
- 23.
Discrete I/O modules that use isolation circuits are ___ interface .
- A.
AC/DC
- B.
Analog
- C.
True/false
- D.
Arithmetic
Correct Answer
A. AC/DC -
- 24.
The internal storage memory of a PLC can include ___ .
- A.
Input data
- B.
Output data
- C.
Constants
- D.
Timer and counter instructions
Correct Answer
D. Timer and counter instructions -
- 25.
This communications management method sends a data packet and waits for a confirmation that it has arrived at its destination .
- A.
Polling
- B.
Contention
- C.
Token passing
- D.
Transfer frame
Correct Answer
B. Contention -
- 26.
The UV spectrophotometer is used to determine wavelenght .
- A.
True
- B.
False
Correct Answer
A. True -
- 27.
Integral control, also known as reset, describes a controlier in which the output rate of change is dependent upon the magnitude of the .
- A.
Integration
- B.
Input
- C.
Reset
- D.
Gain
Correct Answer
B. Input -
- 28.
Proving a loop involves.
- A.
Verifying and documenting point-to-point wiring per the loop drawing
- B.
Calibration of transmitters controllers and final control elements
- C.
Communication between field devices and control system
- D.
Verifying desired interaction of loop components through simulation.
Correct Answer
D. Verifying desired interaction of loop components through simulation. -
- 29.
One method of oxgen analysis focuses on the:
- A.
Color properties of oxygen.
- B.
Dissolvabilitv of oxygen in water.
- C.
Liquefaction properties of oxygen.
- D.
Paramagnetic properties of oxygen.
Correct Answer
D. Paramagnetic properties of oxygen. -
- 30.
Carbon dioxide is produced commercially:
- A.
By extraction from the atmosphere.
- B.
As a byproduct of manufacturing.
- C.
By extraction from ocean water.
- D.
Through chemical bonding
Correct Answer
B. As a byproduct of manufacturing. -
- 31.
Redundant controllers in a distrbuted control system reside.
- A.
In pairs in the same enclosure.
- B.
In a master-slave relationship at assigned locations.
- C.
As a hot standby at the central processor.
- D.
On different communications segments.
Correct Answer
D. On different communications segments. -
- 32.
Density is analyzed using all the following methods EXCEPT;
- A.
Air bubbler
- B.
Displacement
- C.
Densitometer
- D.
Peptide
Correct Answer
D. Peptide -
- 33.
The term topology is often used with digital control systems to describe.
- A.
Supported communication protocols.
- B.
Configuration of data register and processors.
- C.
Interconnection of control components.
- D.
Supported classifcation of enhanced control functions.
Correct Answer
B. Configuration of data register and processors. -
- 34.
When tuning a controller, increasing gain:
- A.
Decreases sensitivity.
- B.
Increases sensitivity.
- C.
Decreases precision.
- D.
Increases precision.
Correct Answer
B. Increases sensitivity. -
- 35.
A physical foundation for digital logic where 0 Volts DC represents a logic level of zero, and 5 Volts DC repersents a logic level of one, is called.
- A.
Transistor-resistor logic
- B.
Diode-diode logic
- C.
Capacitor-diode logic.
- D.
Transistor-transistor logic
Correct Answer
D. Transistor-transistor logic -
- 36.
The " adjustable range " of a pressure switch refers to the.
- A.
Span of pressure within which the sensing element can be set to actuate the contacts of the switch.
- B.
Range of pressure between the set point and the reset point.
- C.
Adjustables accuracy stated as a percentage of the maximum operation pressure.
- D.
Range between the maxmum and minimum pressure.
Correct Answer
A. Span of pressure within which the sensing element can be set to actuate the contacts of the switch. -
- 37.
Which of the following is another name for a synchronous time switch?
- A.
Dashpot timer
- B.
Solid state timer
- C.
Synchronometer
- D.
Time clock
Correct Answer
D. Time clock -
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Mar 09, 2013Quiz Edited by
ProProfs Editorial Team -
Feb 10, 2013Quiz Created by
1albert
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