Esco Electrical Test
- ANS-C. A faulty thermostat- automobile / fan on transfer
A ___ is typically used on a single segment fractional horse strength compressor to disconnect
the begin winding. - ANS-D. Current relay
A capacitor analyzer is designed to test: - ANS-D .The capacitance of the a capacitor
A tool with overload safety used to manipulate a motor is a: - ANS-D. Line starter
A diode is used to? - ANS-A. Control the direction of electron waft
A parallel circuit consists of three resistors; R1 = 30 ohms, R2 = 15 ohms, R3 = 10 ohms. If the
current via R2 = four amps, what's the source voltage? - ANS-B.60 volts
A parallel circuit contains an 18 ohm and a 9 ohm resistor. What is the overall resistance? -
ANS-A.6 ohms
A solenoid valve operates on the precept of: - ANS-C. Electromagnetism
A step-up transformer increases - ANS-B. Voltage
A thermocouple can: - ANS-C. Generate a small DC modern
A 3 phase load calls for at the very least - ANS-A.Three deliver strains
A transformer has 1000 turns on the primary facet and 2000 at the secondary. What is the
output if the enter is 120v? - ANS-D. 240v
A transformer has one thousand activates the number one facet and 500 on the secondary.
What is the output if the enter is 120v? - ANS-C. 60v
Amps can be calculated by way of: - ANS-A. E/R
B.W/E
C.The square root of W/R
solution: D. All the above
An electron has: - ANS-B.A poor rate
, An electronically commutated motor (ECM) is designed to: - ANS-D .Provide proper airflow
underneath diverse conditions
An ohmmeter must never be related to a: - ANS-D. Charged capacitor till it has been discharged
Any fabric in an effort to without difficulty launch electrons is referred to as: - ANS-B.A conductor
Capacitor-begin, capacitor-run automobiles offer: - ANS-B. Medium jogging and high beginning
torque
Capacitors are constantly connected _____ with the begin winding? - ANS-A. In series
Capacitors are rated in: - ANS-D .Both B and C
Circuit breakers and fuses are used to offer: - ANS-C. Protection from an overload of present
day
Contactors are rated in keeping with the most amperage thru the: - ANS-B. Contacts
Direct virtual control (DDC) is: - ANS-D. Electronic controls used for gadget control and
monitoring
Electricity can produce: - ANS-D. All the above
light
warmness
magnetism
Excessive contemporary may be resulting from: - ANS-D. Short circuit
How are fuses sized? - ANS-D .Both A and B
How many watts are utilized by a heater running on 460 volts and drawing 5 amps? - ANS-D
.2300
How a great deal resistance have to be positioned in a 120 volt circuit to limit the modern-day to
2 amps? - ANS-A.60 ohms
If contacts emerge as badly pitted, it is suited to: - ANS-B. Replace the contacts or manage
If the conductor in an AC circuit is wound right into a coil, the resulting EMF opposes supply
voltage. This is referred to as: - ANS-B. Inductive reactance
In a sequence circuit, the voltage drop throughout every load will: - ANS-D .Add as much as
identical the source voltage
- ANS-C. A faulty thermostat- automobile / fan on transfer
A ___ is typically used on a single segment fractional horse strength compressor to disconnect
the begin winding. - ANS-D. Current relay
A capacitor analyzer is designed to test: - ANS-D .The capacitance of the a capacitor
A tool with overload safety used to manipulate a motor is a: - ANS-D. Line starter
A diode is used to? - ANS-A. Control the direction of electron waft
A parallel circuit consists of three resistors; R1 = 30 ohms, R2 = 15 ohms, R3 = 10 ohms. If the
current via R2 = four amps, what's the source voltage? - ANS-B.60 volts
A parallel circuit contains an 18 ohm and a 9 ohm resistor. What is the overall resistance? -
ANS-A.6 ohms
A solenoid valve operates on the precept of: - ANS-C. Electromagnetism
A step-up transformer increases - ANS-B. Voltage
A thermocouple can: - ANS-C. Generate a small DC modern
A 3 phase load calls for at the very least - ANS-A.Three deliver strains
A transformer has 1000 turns on the primary facet and 2000 at the secondary. What is the
output if the enter is 120v? - ANS-D. 240v
A transformer has one thousand activates the number one facet and 500 on the secondary.
What is the output if the enter is 120v? - ANS-C. 60v
Amps can be calculated by way of: - ANS-A. E/R
B.W/E
C.The square root of W/R
solution: D. All the above
An electron has: - ANS-B.A poor rate
, An electronically commutated motor (ECM) is designed to: - ANS-D .Provide proper airflow
underneath diverse conditions
An ohmmeter must never be related to a: - ANS-D. Charged capacitor till it has been discharged
Any fabric in an effort to without difficulty launch electrons is referred to as: - ANS-B.A conductor
Capacitor-begin, capacitor-run automobiles offer: - ANS-B. Medium jogging and high beginning
torque
Capacitors are constantly connected _____ with the begin winding? - ANS-A. In series
Capacitors are rated in: - ANS-D .Both B and C
Circuit breakers and fuses are used to offer: - ANS-C. Protection from an overload of present
day
Contactors are rated in keeping with the most amperage thru the: - ANS-B. Contacts
Direct virtual control (DDC) is: - ANS-D. Electronic controls used for gadget control and
monitoring
Electricity can produce: - ANS-D. All the above
light
warmness
magnetism
Excessive contemporary may be resulting from: - ANS-D. Short circuit
How are fuses sized? - ANS-D .Both A and B
How many watts are utilized by a heater running on 460 volts and drawing 5 amps? - ANS-D
.2300
How a great deal resistance have to be positioned in a 120 volt circuit to limit the modern-day to
2 amps? - ANS-A.60 ohms
If contacts emerge as badly pitted, it is suited to: - ANS-B. Replace the contacts or manage
If the conductor in an AC circuit is wound right into a coil, the resulting EMF opposes supply
voltage. This is referred to as: - ANS-B. Inductive reactance
In a sequence circuit, the voltage drop throughout every load will: - ANS-D .Add as much as
identical the source voltage
