ELE 146 EXAM 2026|2027 UPDATED QUESTIONS WITH DETAILED
VERIFIED ANSWERS (100%) | ALREADY GRADED A+
What is the acceptable resistance range (high and low) that should be measured when testing a solenoid?
- CORRECT ANSWER -+- 15%
Are relays usually used to control higher current loads, such as a 20 A electric motor? - CORRECT
ANSWER -No
Does the load (alarm, motor starter coil, etc.) that the relay contacts control need to be the same voltage
rating and type (AC or DC) as the relays coil? - CORRECT ANSWER -No
Can one relay coil control several different relay contacts? - CORRECT ANSWER -Yes
Can a relay with multiple contacts use the different contacts to control different loads, each with a
different voltage level, as long as each circuit is isolated from the other circuits? - CORRECT ANSWER -
Yes
What does DPST-DB stand for? - CORRECT ANSWER -Double Pole Single Throw - Double Break
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,What type of contact is best to use when switching higher power loads? - CORRECT ANSWER -Double
Break
What is a flow path through a valve? - CORRECT ANSWER -way
What does an electrical control valve use to change the position of a valve spool? - CORRECT ANSWER -
actuator
What is the acceptable voltage range (high and low) that should be applied to a solenoid? - CORRECT
ANSWER -+-10%
What device is used to reduce transients produced by solenoids? - CORRECT ANSWER -snubber circuit
A form letter is used to simplify relay contacts. What form letter would identify a relay with a SPST-NC
contact type? - CORRECT ANSWER -B
Which relay type comes with convertible contacts that can be placed in either an NO or NC operating
position? - CORRECT ANSWER -Industrial or Heavy Duty relays
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, Are reed relays usually used to switch loads in the 0.1 A to 10 A range? - CORRECT ANSWER -Yes
Why are gold-flashed silver contacts used in automobile air bag activation control systems? - CORRECT
ANSWER -Reduce chances of sulfidation & have a good electrical connection
Should relay contacts be filed when showing signs of wear? - CORRECT ANSWER -No, always replaced
In a 120 V circuit, is it acceptable when 2 V are measured across a closed contact operating a load? -
CORRECT ANSWER -No, <1V
In a 120 V circuit, is it acceptable when the full 120 V are measured across an open relay contact? -
CORRECT ANSWER -No, relay will be defective and contacts will not close at maximum voltage
Can reed relays be manually operated? - CORRECT ANSWER -No
What are the two windings of a transformer called? - CORRECT ANSWER -The two winding of a
transformer are called Primary, and secondary winding.
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VERIFIED ANSWERS (100%) | ALREADY GRADED A+
What is the acceptable resistance range (high and low) that should be measured when testing a solenoid?
- CORRECT ANSWER -+- 15%
Are relays usually used to control higher current loads, such as a 20 A electric motor? - CORRECT
ANSWER -No
Does the load (alarm, motor starter coil, etc.) that the relay contacts control need to be the same voltage
rating and type (AC or DC) as the relays coil? - CORRECT ANSWER -No
Can one relay coil control several different relay contacts? - CORRECT ANSWER -Yes
Can a relay with multiple contacts use the different contacts to control different loads, each with a
different voltage level, as long as each circuit is isolated from the other circuits? - CORRECT ANSWER -
Yes
What does DPST-DB stand for? - CORRECT ANSWER -Double Pole Single Throw - Double Break
1|Page
,What type of contact is best to use when switching higher power loads? - CORRECT ANSWER -Double
Break
What is a flow path through a valve? - CORRECT ANSWER -way
What does an electrical control valve use to change the position of a valve spool? - CORRECT ANSWER -
actuator
What is the acceptable voltage range (high and low) that should be applied to a solenoid? - CORRECT
ANSWER -+-10%
What device is used to reduce transients produced by solenoids? - CORRECT ANSWER -snubber circuit
A form letter is used to simplify relay contacts. What form letter would identify a relay with a SPST-NC
contact type? - CORRECT ANSWER -B
Which relay type comes with convertible contacts that can be placed in either an NO or NC operating
position? - CORRECT ANSWER -Industrial or Heavy Duty relays
2|Page
, Are reed relays usually used to switch loads in the 0.1 A to 10 A range? - CORRECT ANSWER -Yes
Why are gold-flashed silver contacts used in automobile air bag activation control systems? - CORRECT
ANSWER -Reduce chances of sulfidation & have a good electrical connection
Should relay contacts be filed when showing signs of wear? - CORRECT ANSWER -No, always replaced
In a 120 V circuit, is it acceptable when 2 V are measured across a closed contact operating a load? -
CORRECT ANSWER -No, <1V
In a 120 V circuit, is it acceptable when the full 120 V are measured across an open relay contact? -
CORRECT ANSWER -No, relay will be defective and contacts will not close at maximum voltage
Can reed relays be manually operated? - CORRECT ANSWER -No
What are the two windings of a transformer called? - CORRECT ANSWER -The two winding of a
transformer are called Primary, and secondary winding.
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