AC CONTROL EQUIPMENT TPC 209 / ACTUAL COMPLETE QUESTIONS AND CORRECT ANSWERS/ VERIFIED ANSWERS/ A GRADE.
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Course
AC CONTROL EQUIPMENT TPC 209
Institution
AC CONTROL EQUIPMENT TPC 209
AC CONTROL EQUIPMENT TPC 209 / ACTUAL COMPLETE
QUESTIONS AND CORRECT ANSWERS/ VERIFIED ANSWERS/ A
GRADE.
AC CONTROL EQUIPMENT TPC 209 / ACTUAL COMPLETE
QUESTIONS AND CORRECT ANSWERS/ VERIFIED ANSWERS/ A
GRADE.
AC CONTROL EQUIPMENT TPC 209 / ACTUAL COMPLETE
QUESTIONS AND CORRECT ANSW...
AC CONTROL EQUIPMENT TPC 209 /2024-2025 ACTUAL COMPLETE
QUESTIONS AND CORRECT ANSWERS/ VERIFIED ANSWERS/ A
GRADE.
What kind of armature is a clapper? - ANSWER-A hinged armature
that pivots to the sealed-in position
NEMA ______ is related to an enclosure for use where flammable
gases or vapors may be present - ANSWER-7
The shading coil reduces which of the following in the armature? -
ANSWER-vibration
The ______ voltage is the minimum potential difference that will cause
the armature to seat against the pole faces of a relay coil. – ANSWER -
seal-in
What is not the result of the potential difference across the coil being
too great? - ANSWER-reduced magnetic force
The terms standard duty and heavy duty describe only the ... -
ANSWER-amount of current the push button contacts can carry
NEMA type 1B flush-mounted stations require... - ANSWER-4 11/16
inch single-outlet box
,NEMA type 7 and 9 push button stations for hazardous locations are
suitable for all of the following except... -Class I Groups C and D
hazardous gas
-Class II Groups E,F, and G hazardous dust
-Corrosive fumes or liquids - ANSWER-Corrosive fumes or liquids
Which of the following are designed for only ac use?
-encapsulated pilot light
-full voltage pilot light
-indicatiterm-8ng lights
-joy stick operator - ANSWER-Joy stick operator
When only one START-STOP station is used with several emergency
STOP buttons at different locations, the STOP stations are wired... -
ANSWER-in series
The purpose of the actuator in a precision snapswitch is to... -
ANSWER-transmit force from the outside
The temperature that develops inside a switch under operating
conditions depends on all the following except...
-continuous current
-pulse
-interrupting current
-in-rush current - ANSWER-Pulse
, When a remote-cable actuator is used, where is the switch is
mounted? - ANSWER-Where space permits
When a plug-in switch needs replacing, what is replaced? – ANSWER
Only the plug-in portion
When should a mercury switch be replaced? - ANSWER-When the
mercury strings out or breaks up into pools
To change a control circuit from one sequence to another, a ______ is
used. - ANSWER-transfer switch
Plugging switches can operate either... – ANSWER
electromechanically or electromagnetically
Which kind of switch is classified according to the kind of liquid or
gas being measured? - ANSWER-mechanical pressure
Capillary-tube direct-immersion and thermostat are kinds of ______
switches. - ANSWER-temperature control
Float switches are used for controlling all of the following except...
-temperature-maintaining equipment
-motor starters
-small motors
-valves - ANSWER-Temperature maintaining equipment
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