INSTRUMENTATION NCCER
TEST
A ground loop on shielded cable can be avoided by:
a. Attaching a safety ground to the instrument casing
b. Grounding the shield at only one end of the circuit
c. Attaching a safety ground to the control panel
d. Grounding the shield at two points with different voltage
potentials
Grounding the shield at only one end of the circuit
A low resistance reading from an ungrounded signal lead
connected to ground indicates a problem of:
a. A lead having an unwanted connection to ground
b. An open circuit from the lead to ground
c. An open circuit from the lead to the casing
d. None of the above
A lead having an unwanted connection to ground
75% output on a 4-20 milliamp transmitter is:
a. 12 milliamps
b. 15 milliamps
c. 16 milliamps
d. 20 milliamps
16 milliamps
What is used to change a 3-15 psi to 4-20 mA?
a. P/I transducer
b. E/I transducer
c. I/P transducer
d. mV/I transducer
,P/I transducer
Which of the following can provide input/output isolation?
a. Optical coupling
b. A successive approximation converter
c. Optical coupling A dual-slope integrator converter
d. Clock-circuits
Optical coupling
A multi-conductor cable printed circuit board with multiple
conductive tracks is called:
a. A register
b. Ladder logic
c. A bus
d. A sequential adder circuit
A bus
The decimal equivalent of 10011 binary is:
a. 3
b. 12
c. 19
d. 21
19
The term used to describe multiple lines sending eight bits of data
at a time is:
a. Parallel transmission
b. Interface
c. Serial transmission
d. Protocol
Serial transmission
An oscilloscope waveform spans 5.5 vertical divisions. The
vertical gain control is set at 2 volts/division/ the peak-to-peak
,voltage of the signal on the oscilloscope is:
a. 33 volts
b. 22 volts
c. 11 volts
d. 2.75 volts
11 volts
A breadboarding area is:
a. A data routing circuit
b. Used to design or test electronic circuits
c. A code-converting circuit
d. A temporary binary storage area
Used to design or test electronic circuits
The digital test device that captures and displays a sequence of
instructions from the program of a microcomputer is a:
a. Signature analyzer
b. Logic chip
c. Logic analyzer
d. Logic probe
Logic probe
A diamond on an instrumentation diagram encloses information
about:
a. Calibration
b. The set point
c. Controller action
d. The power source
The power source
, A technology bypassing conventional I/O by using direct
communications between smart field devices and associated
control processors is:
a. SCADA
b. WAN
c. Peer-to-peer
d. Fieldbus
Fieldbus
Redundant controllers in a distributed 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 a different communications segments.
As a hot standby at the central processor.
The ultimate period method for tuning a controller was first
proposed by:
a. Naylor and Tunstall
b. Mitchem and Smith
c. Hobbs and Lewley
d. Ziegler and Nichols
Ziegler and Nichols
One method of oxygen analysis focuses on the:
a. Color properties of oxygen
b. Dissolvability of oxygen in water
c. Liquefaction properties of oxygen
d. Paramagnetic properties of oxygen
Color properties of oxygen
A Piece of pipe has an AISI classification of A105, the major alloy
is:
TEST
A ground loop on shielded cable can be avoided by:
a. Attaching a safety ground to the instrument casing
b. Grounding the shield at only one end of the circuit
c. Attaching a safety ground to the control panel
d. Grounding the shield at two points with different voltage
potentials
Grounding the shield at only one end of the circuit
A low resistance reading from an ungrounded signal lead
connected to ground indicates a problem of:
a. A lead having an unwanted connection to ground
b. An open circuit from the lead to ground
c. An open circuit from the lead to the casing
d. None of the above
A lead having an unwanted connection to ground
75% output on a 4-20 milliamp transmitter is:
a. 12 milliamps
b. 15 milliamps
c. 16 milliamps
d. 20 milliamps
16 milliamps
What is used to change a 3-15 psi to 4-20 mA?
a. P/I transducer
b. E/I transducer
c. I/P transducer
d. mV/I transducer
,P/I transducer
Which of the following can provide input/output isolation?
a. Optical coupling
b. A successive approximation converter
c. Optical coupling A dual-slope integrator converter
d. Clock-circuits
Optical coupling
A multi-conductor cable printed circuit board with multiple
conductive tracks is called:
a. A register
b. Ladder logic
c. A bus
d. A sequential adder circuit
A bus
The decimal equivalent of 10011 binary is:
a. 3
b. 12
c. 19
d. 21
19
The term used to describe multiple lines sending eight bits of data
at a time is:
a. Parallel transmission
b. Interface
c. Serial transmission
d. Protocol
Serial transmission
An oscilloscope waveform spans 5.5 vertical divisions. The
vertical gain control is set at 2 volts/division/ the peak-to-peak
,voltage of the signal on the oscilloscope is:
a. 33 volts
b. 22 volts
c. 11 volts
d. 2.75 volts
11 volts
A breadboarding area is:
a. A data routing circuit
b. Used to design or test electronic circuits
c. A code-converting circuit
d. A temporary binary storage area
Used to design or test electronic circuits
The digital test device that captures and displays a sequence of
instructions from the program of a microcomputer is a:
a. Signature analyzer
b. Logic chip
c. Logic analyzer
d. Logic probe
Logic probe
A diamond on an instrumentation diagram encloses information
about:
a. Calibration
b. The set point
c. Controller action
d. The power source
The power source
, A technology bypassing conventional I/O by using direct
communications between smart field devices and associated
control processors is:
a. SCADA
b. WAN
c. Peer-to-peer
d. Fieldbus
Fieldbus
Redundant controllers in a distributed 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 a different communications segments.
As a hot standby at the central processor.
The ultimate period method for tuning a controller was first
proposed by:
a. Naylor and Tunstall
b. Mitchem and Smith
c. Hobbs and Lewley
d. Ziegler and Nichols
Ziegler and Nichols
One method of oxygen analysis focuses on the:
a. Color properties of oxygen
b. Dissolvability of oxygen in water
c. Liquefaction properties of oxygen
d. Paramagnetic properties of oxygen
Color properties of oxygen
A Piece of pipe has an AISI classification of A105, the major alloy
is:
