101 Basic Series - Module 23 - CEU Education
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1
With a smaller than "standard size" target, the sensing range of an inductive proximity sensor ________.
Increase
Decreases
Stays the same
2
Ambient temperature has no affect on sensing range for an inductive proximity sensor.
True
False
3
________ type of sensor, excess gain is related to the light bouncing back from the reflector.
Thru-beam
Reflex
Diffuse reflective
Perfect prox
4
Load powered sensors are connected in series with the load, and are often referred to as 2-wire sensors.
True
False
5
Inductive proximity sensors have a long sensing range.
True
False
6
An inductive proximity sensor can detect metallic targets through non-metallic barriers.
True
False
7
________ outputs are solid state and switch DC loads.
Relay
Triac
Transistor
Bilateral
8
A capacitive proximity sensor can detect any target that has a dielectric constant greater than air.
True
False
9
An excess gain of 1.00 is the maximum range of the sensor.
True
False
10
Non-plug-in types are a popular design for DIN rail mounted limit switches.
True
False
11
The presence of metal causes a change in the oscillation of an inductive proximity sensor.
True
False
12
The logic where the output is held on for a preset time after the target exits the sensing range is ________.
On-delay
Off-delay
On/off-delay
One-shot
13
A photoelectric sensor that generates an output when the photodetector doesn't see light is in the dark operate mode.
True
False
14
Contrast is important when detecting semi-transparent objects.
True
False
15
The shape of the target can have an impact on the sensing range of an inductive proximity sensor.
True
False
16
When feedback capacitance is detected, oscillation begins in a capacitive proximity sensor.
True
False
17
A limit switch is an electromechanical device that requires physical contact from a target in order to operate.
True
False
18
RFI signals have no affect on an inductive proximity sensor.
True
False
19
Fiber optic cables don't contain any electronics, and carry light not current.
True
False
20
The three main components of a limit switch are the operating head, body, and receptacle.
True
False
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