I LEVEL 3 Comprehensive TEST
Questions
and Answers Verified Solutions Latest
Update
Question:
what must be the voltage to force 2.4 amp ?
Answer:
6.84 V Best way to test someone after training them? Have them teach others or have
them perform the task under supervision What is amperage 1000 Watts pulled through
12.5 ohms? 8.9 amps What is one way to prolong life of vertical shaft well motor?
Answer: make sure plenty of grease, lube bearings, make sure fail seal hooked up
Grounding analog signal both end of wire or one end only? Answer: Ground only one
end analog of wire .15KvA transformer 480-120. How much amps can you pull on 120
side? Answer: 1.25 amps 150/120=1.25 amp What are transformer measured in?
Answer: KVA What should flow meter read in this open-channel thing? 36" wide 30"
water depth flow is 2 feet per second. Answer: 9.69 MGD If equipment failure is the
condition in which a piece of equipment does not operate as intended. Answer: Failure
Report What is the highest Category? Answer: Category 4 Molder Case Breaker?
Answer: Short circuit or Overload Nema Enclosure differences? Answer: Weather proof
How do you make a conveyor belt go faster and a VFD slower? Answer: Increase pulley
on the conveyor side and decrease pulley on VFD side On a a circuit motor starter there
are two start switches. Where does the second starter switch wired ? Answer: Parallel
with coil Commonly used instead of fuses in industrial power distribution systems are:.
Answer: Circuit Breakers What is NEC Article for Solar Panel photovoltaic. Answer:
ARTICLE 690 SOLAR PHOTOVOLTAIC (PV) SYSTEMS On 3 phase power what is the
minimum numbers of wire you can use? Answer: 3 wires If Level is 5.75 ft and wetwell
is 20 feet what is the milliamp? Answer: 5.75/20 X 16 +4 === 8.71 ma What is
Reluctance? Answer: magnetic material Its the ability to oppose the flow of magnetic
flow flux created by the field window What is the property of a coil of wire that opposes
any change in the current in the coil? Answer: Inductance What is PPE Category 1?
Answer: Requiring a single layer of arc-rated PPE, workers need the following clothing:
Required Clothing: Long Sleeve Shirt (or Jacket) and Pants or AR Coverall with minimum
arc rating of 4 cal/cm. Is the Oxygen Safe Zone at 22% Safe? Answer: Yes, between
19.5% to 23.5% L.O.T.O. Answer: Lock out tag out is an osha regulation. The voltage
from phase to ground in a 480v transformer is? Answer: 277 volts. What is the main
electrical danger when using power tools? Answer: A short circuit Shielding protects an
analog meter from? Answer: Stray magnetic fields. The frame, core, winding and end
, plates are all parts of? Answer: A stator. If 17.32v are applied across a resistance of 50
ohms, how much power is expended in the resistor? Answer: 6.0 watts. Formula: V
squared/R = P 17.32 squared(299.98)/50=5.99 Signal range for pneumatics? Answer:
3-15psi. 3-6-9-12-15 If transformer primary=120v and secondary 12v=20 amps, what
are the amps on the primary? Answer: 2 amps. Formula: I =Amps/Volume of current E
= Volts/Force moving the current P = Watts, Electrical power produced I x E=P 12 x
20=240watts In a transformer watts stay the same so now: P/E=I 240/120v=2 amps
What happens when a motor loses one phase out of 3? Answer: Single phasing will
cause the motor to trip the overload heaters What instrument do you use to measure
4-20 mA? Answer: DC clamp meter How do you connect an ammeter to check an
electrical circuit? Answer: In series with the load. If you are angry or impatient with one
worker you should? Answer: Avoid transferring that feeling to others. First step in
troubleshooting a programmable logic controller(PLC) system is? Answer: Know the
process Which of the following actions should be taken before working on controls that
may disrupt plant operations? Answer: Have an operator present. Which of the
following best describes the efficiency of preventive maintenance for plant equipment?
Answer: Periodic inspection of facilities to discover developing defects that could lead
to equipment failure. In a 240v-120v Delta system, the high leg is? Answer: 208v What
class and division above water on a primary clarifier? Answer: Class 1 Division 2 AC
reads out how? Answer: Peak to peak. What do you use to clean Electrical instruments?
Answer: For Electro-pnuematic Positioners you use solvent. Where are the overloads
installed on a wire diagram? Answer: Before circuit protection, in series with the line
leads. Arc-rated clothing is rated? Answer: Cal/Cm2 Whats the maximum ampacity on
#12 rated wires THWN?(Thermoplastic Heat and Water-resistant Nylon-coated).
Answer: 20 amps. On a 480v 3 phase wye, the nuetral and line phase are? Answer: he
same times the square root of 3 (1.73)=480. (Comes to 277v) What happens to the
speed of a 3 phase motor with an "unbalanced load"? Answer: It's called single phasing
and will burn/heat up the motor quickly. In excess of what voltage shall insulated tools
and gloves be worn for? Answer: 120v A 3 phase motor shows 15 FLA.(Full Load
Amperes) You have readings of 15.6, 16.1 and 15.9, what is the condition of the motor?
Answer: The motor is overloaded. 4-20 mA output for a device with a range of
0-63,535. Read is 6 mA. What is the measurement reading? Answer: 6mA/20mA= 0.3,
0.3 x 63,535= 19,060.5 Ladder Diagram. Answer: Ladder diagrams are specialized
schematics commonly used to document industrial control logic systems(PLCs). They
are called "ladder" diagrams because they resemble a ladder, with two vertical rails
(supply power) and as many "rungs" (horizontal lines) as there are control circuits to
represent. How to measure 4-20ma with a digital multi meter.(DMM). Answer:
Disconnect one wire of the loop and connect the DMM in series. How far from the
disconnect should a pump be located? Answer: located within sight from and not at a
distance greater than 15 m (50 ft) from the motor and equipment. The most important
requirement for good maintenance of motor starters is:. Answer: proper lubrication A
reversing starter reverses a three-phase motor by interchanging:. Answer: two of the
line leads What kind of protection is provided in a manual across-the-line three-phase
motor control? Answer: Overload protection only The drawing that provides a view of
Questions
and Answers Verified Solutions Latest
Update
Question:
what must be the voltage to force 2.4 amp ?
Answer:
6.84 V Best way to test someone after training them? Have them teach others or have
them perform the task under supervision What is amperage 1000 Watts pulled through
12.5 ohms? 8.9 amps What is one way to prolong life of vertical shaft well motor?
Answer: make sure plenty of grease, lube bearings, make sure fail seal hooked up
Grounding analog signal both end of wire or one end only? Answer: Ground only one
end analog of wire .15KvA transformer 480-120. How much amps can you pull on 120
side? Answer: 1.25 amps 150/120=1.25 amp What are transformer measured in?
Answer: KVA What should flow meter read in this open-channel thing? 36" wide 30"
water depth flow is 2 feet per second. Answer: 9.69 MGD If equipment failure is the
condition in which a piece of equipment does not operate as intended. Answer: Failure
Report What is the highest Category? Answer: Category 4 Molder Case Breaker?
Answer: Short circuit or Overload Nema Enclosure differences? Answer: Weather proof
How do you make a conveyor belt go faster and a VFD slower? Answer: Increase pulley
on the conveyor side and decrease pulley on VFD side On a a circuit motor starter there
are two start switches. Where does the second starter switch wired ? Answer: Parallel
with coil Commonly used instead of fuses in industrial power distribution systems are:.
Answer: Circuit Breakers What is NEC Article for Solar Panel photovoltaic. Answer:
ARTICLE 690 SOLAR PHOTOVOLTAIC (PV) SYSTEMS On 3 phase power what is the
minimum numbers of wire you can use? Answer: 3 wires If Level is 5.75 ft and wetwell
is 20 feet what is the milliamp? Answer: 5.75/20 X 16 +4 === 8.71 ma What is
Reluctance? Answer: magnetic material Its the ability to oppose the flow of magnetic
flow flux created by the field window What is the property of a coil of wire that opposes
any change in the current in the coil? Answer: Inductance What is PPE Category 1?
Answer: Requiring a single layer of arc-rated PPE, workers need the following clothing:
Required Clothing: Long Sleeve Shirt (or Jacket) and Pants or AR Coverall with minimum
arc rating of 4 cal/cm. Is the Oxygen Safe Zone at 22% Safe? Answer: Yes, between
19.5% to 23.5% L.O.T.O. Answer: Lock out tag out is an osha regulation. The voltage
from phase to ground in a 480v transformer is? Answer: 277 volts. What is the main
electrical danger when using power tools? Answer: A short circuit Shielding protects an
analog meter from? Answer: Stray magnetic fields. The frame, core, winding and end
, plates are all parts of? Answer: A stator. If 17.32v are applied across a resistance of 50
ohms, how much power is expended in the resistor? Answer: 6.0 watts. Formula: V
squared/R = P 17.32 squared(299.98)/50=5.99 Signal range for pneumatics? Answer:
3-15psi. 3-6-9-12-15 If transformer primary=120v and secondary 12v=20 amps, what
are the amps on the primary? Answer: 2 amps. Formula: I =Amps/Volume of current E
= Volts/Force moving the current P = Watts, Electrical power produced I x E=P 12 x
20=240watts In a transformer watts stay the same so now: P/E=I 240/120v=2 amps
What happens when a motor loses one phase out of 3? Answer: Single phasing will
cause the motor to trip the overload heaters What instrument do you use to measure
4-20 mA? Answer: DC clamp meter How do you connect an ammeter to check an
electrical circuit? Answer: In series with the load. If you are angry or impatient with one
worker you should? Answer: Avoid transferring that feeling to others. First step in
troubleshooting a programmable logic controller(PLC) system is? Answer: Know the
process Which of the following actions should be taken before working on controls that
may disrupt plant operations? Answer: Have an operator present. Which of the
following best describes the efficiency of preventive maintenance for plant equipment?
Answer: Periodic inspection of facilities to discover developing defects that could lead
to equipment failure. In a 240v-120v Delta system, the high leg is? Answer: 208v What
class and division above water on a primary clarifier? Answer: Class 1 Division 2 AC
reads out how? Answer: Peak to peak. What do you use to clean Electrical instruments?
Answer: For Electro-pnuematic Positioners you use solvent. Where are the overloads
installed on a wire diagram? Answer: Before circuit protection, in series with the line
leads. Arc-rated clothing is rated? Answer: Cal/Cm2 Whats the maximum ampacity on
#12 rated wires THWN?(Thermoplastic Heat and Water-resistant Nylon-coated).
Answer: 20 amps. On a 480v 3 phase wye, the nuetral and line phase are? Answer: he
same times the square root of 3 (1.73)=480. (Comes to 277v) What happens to the
speed of a 3 phase motor with an "unbalanced load"? Answer: It's called single phasing
and will burn/heat up the motor quickly. In excess of what voltage shall insulated tools
and gloves be worn for? Answer: 120v A 3 phase motor shows 15 FLA.(Full Load
Amperes) You have readings of 15.6, 16.1 and 15.9, what is the condition of the motor?
Answer: The motor is overloaded. 4-20 mA output for a device with a range of
0-63,535. Read is 6 mA. What is the measurement reading? Answer: 6mA/20mA= 0.3,
0.3 x 63,535= 19,060.5 Ladder Diagram. Answer: Ladder diagrams are specialized
schematics commonly used to document industrial control logic systems(PLCs). They
are called "ladder" diagrams because they resemble a ladder, with two vertical rails
(supply power) and as many "rungs" (horizontal lines) as there are control circuits to
represent. How to measure 4-20ma with a digital multi meter.(DMM). Answer:
Disconnect one wire of the loop and connect the DMM in series. How far from the
disconnect should a pump be located? Answer: located within sight from and not at a
distance greater than 15 m (50 ft) from the motor and equipment. The most important
requirement for good maintenance of motor starters is:. Answer: proper lubrication A
reversing starter reverses a three-phase motor by interchanging:. Answer: two of the
line leads What kind of protection is provided in a manual across-the-line three-phase
motor control? Answer: Overload protection only The drawing that provides a view of
