EPRI EXAM ALL QUESTIONS WITH
CORRECT ANSWERS!!
What is the maximum allowed deviation (in mADC) for a device that has an accuracy
requirement of 0.5% and an output span of 16 mADC?
0.08 mADC
Deviation=Span X (Accuracy/100)
What procedure should be enacted before working on an electrical or pneumatic system?
Lockout/Tagout
What is the total resistance of a parallel circuit with resistances of 25, 35, and 45 ohms?
11 ohms
Who is authorized to remove each lock and tag applied?
Only the technician who applied the lock
What should an instrument technician evaluate before opening a process line?
The SDSs for the chemicals in the line
What is the proper ratio of rise to run for an extension ladder?
4:1
Find the volume of a tank with a diameter of 12 feet and a height of 37 feet.
4,183.8 cu. ft.
V = (3.14) (R^2) (H)
Find the DC voltage drop across a 250-ohm resistor with a current of 16 milliamperes DC.
4 VDC
E=IxR
Convert 4,500 cubic feet to gallons.
, 33,662.25 gallons
Gallons = (CuFt) (7.48)
What does not determine the severity of an electrical shock?
Temperature
This vocabulary term is defined as "a system in which deliberate guidance or manipulation
is used to achieve a prescribed value or variable."
Control System
Where in the physical process would a primary element be located?
In contact with the process
Automatic control systems relieve the operator of the responsibility to maintain a process.
True or False?
True
Process variables in a system requiring control include which of the following?
Density
Flow
Specific Gravity
Volume
Flow
How are inputs and outputs typically connected to the controller in a process system?
Twisted-pair wiring
What type of signal is represented by a packet of information containing a series of discrete
bits?
Digital
What type of signal can be used as inputs to record a range of values and as outputs to
position a final control element?
CORRECT ANSWERS!!
What is the maximum allowed deviation (in mADC) for a device that has an accuracy
requirement of 0.5% and an output span of 16 mADC?
0.08 mADC
Deviation=Span X (Accuracy/100)
What procedure should be enacted before working on an electrical or pneumatic system?
Lockout/Tagout
What is the total resistance of a parallel circuit with resistances of 25, 35, and 45 ohms?
11 ohms
Who is authorized to remove each lock and tag applied?
Only the technician who applied the lock
What should an instrument technician evaluate before opening a process line?
The SDSs for the chemicals in the line
What is the proper ratio of rise to run for an extension ladder?
4:1
Find the volume of a tank with a diameter of 12 feet and a height of 37 feet.
4,183.8 cu. ft.
V = (3.14) (R^2) (H)
Find the DC voltage drop across a 250-ohm resistor with a current of 16 milliamperes DC.
4 VDC
E=IxR
Convert 4,500 cubic feet to gallons.
, 33,662.25 gallons
Gallons = (CuFt) (7.48)
What does not determine the severity of an electrical shock?
Temperature
This vocabulary term is defined as "a system in which deliberate guidance or manipulation
is used to achieve a prescribed value or variable."
Control System
Where in the physical process would a primary element be located?
In contact with the process
Automatic control systems relieve the operator of the responsibility to maintain a process.
True or False?
True
Process variables in a system requiring control include which of the following?
Density
Flow
Specific Gravity
Volume
Flow
How are inputs and outputs typically connected to the controller in a process system?
Twisted-pair wiring
What type of signal is represented by a packet of information containing a series of discrete
bits?
Digital
What type of signal can be used as inputs to record a range of values and as outputs to
position a final control element?
