******CWEA Electrical and Instrument
Grade 2 Study Guide ****
.15KvA transformer 480-one hundred twenty. How a great deal amps are you able to pull on one
hundred twenty side? - ANS-1.25 amps 150/120=1.25 amp
· When finding volume, the tank perhaps 30' excessive however simplest stuffed to fourteen'
study the question and make sure you are acting the formulation because it relates to the query.
- ANS-?
Four-20 mA output for a device with a number of zero-sixty three,535. Read is 6 mA. What is
the dimension analyzing? - ANS-6mA/20mA= 0.3, zero.Three x 63,535= 19,060.5
A 12V battery rated to provide 1amp for 20 hours throughout a 2000w load. How lengthy will the
battery preserve to provide an output? - ANS-A. 1 hour
B. 10 hour
C.*** a hundred hour
D. One thousand hour
A three segment motor shows 15 FLA.(Full Load Amperes) You have readings of 15.6, sixteen.1
and 15.9, what's the condition of the motor? - ANS-The motor is overloaded.
A 3 segment motor with an FLA of 25 amps has these readings, A phase 26a, B section 26.9a,
C segment 27a. This motor is what? - ANS-A. Overloaded
B. Needs adjustment
C. Fine
D. Duty rated
A 36" pipe has an elevation gain of three hundred', the system reaches an elevation of 200'.
What is the PSI? - ANS-Do Calculation
A 480V, three section motor, Delta linked, has one leg shorted, what's going to the resistance be
in comparison to the opposite legs - ANS-A. Greater
*B. Lower
C. Same
D. Greater or decrease
, A 500hp, 3 segment, 460v, eight-pole, 900 rpm motor is attached to a 5:1 tools container. What
is the rpm of the output shaft? Forget approximately all the unnecessary facts. The query gives
the rpm of the motor it's all you want. - ANS-Do Calculations
A commutator is determined in what piece of equipment? - ANS-DC motor
A diaphragm kind gauge protector is utilized in which type of environment? - ANS-Corrosive
A drift meter that uses a small hole in a plate to measure flow is a what? - ANS-A. Venturi
B. Orifice
C. Magnetic
D. Rotometer
A molded case breaker is designed to defend against what? - ANS-A. Overcurrent
B. Overcurrent and quick circuits
C. Short circuits
A pipe has a 10" establishing , and produces 2500 GPM. How many cubic toes/sec? - ANS-Do
Calculations
A resistor with the colours orange, orange/white, XXX, XXX, what's its value? Know your
resistor color values. - ANS-33 G ohms
A reversing starter reverses a 3-segment
motor through interchanging: - ANS-two of the road leads
A sign that goes from - to + is referred to as a what? - ANS-AC
A gentle starter works through? - ANS-controlling the amount of voltage jogging through the
automobiles circuits. It does this through limiting torque inside the motor. This in turn lets in the
smooth starter to reduce the voltage and lets in it to progressively stop decreasing the voltage to
allow for a clean progression of cutting-edge.
A tank is 30' high, 26' wide, crammed 14'. What is the extent? I trust you have to anticipate this
tank is a cylinder. Pay interest if the query ask for the tanks extent or the quantity of the fluid
within the tank. - ANS-Do Calculations
Absoulte Pressure Gauge? What is True? - ANS-Possible solution: Read greater accurate or
14.7 PSI higher
AC reads out how? - ANS-Peak to top.
Arc-rated apparel is rated? - ANS-Cal/Cm2
Grade 2 Study Guide ****
.15KvA transformer 480-one hundred twenty. How a great deal amps are you able to pull on one
hundred twenty side? - ANS-1.25 amps 150/120=1.25 amp
· When finding volume, the tank perhaps 30' excessive however simplest stuffed to fourteen'
study the question and make sure you are acting the formulation because it relates to the query.
- ANS-?
Four-20 mA output for a device with a number of zero-sixty three,535. Read is 6 mA. What is
the dimension analyzing? - ANS-6mA/20mA= 0.3, zero.Three x 63,535= 19,060.5
A 12V battery rated to provide 1amp for 20 hours throughout a 2000w load. How lengthy will the
battery preserve to provide an output? - ANS-A. 1 hour
B. 10 hour
C.*** a hundred hour
D. One thousand hour
A three segment motor shows 15 FLA.(Full Load Amperes) You have readings of 15.6, sixteen.1
and 15.9, what's the condition of the motor? - ANS-The motor is overloaded.
A 3 segment motor with an FLA of 25 amps has these readings, A phase 26a, B section 26.9a,
C segment 27a. This motor is what? - ANS-A. Overloaded
B. Needs adjustment
C. Fine
D. Duty rated
A 36" pipe has an elevation gain of three hundred', the system reaches an elevation of 200'.
What is the PSI? - ANS-Do Calculation
A 480V, three section motor, Delta linked, has one leg shorted, what's going to the resistance be
in comparison to the opposite legs - ANS-A. Greater
*B. Lower
C. Same
D. Greater or decrease
, A 500hp, 3 segment, 460v, eight-pole, 900 rpm motor is attached to a 5:1 tools container. What
is the rpm of the output shaft? Forget approximately all the unnecessary facts. The query gives
the rpm of the motor it's all you want. - ANS-Do Calculations
A commutator is determined in what piece of equipment? - ANS-DC motor
A diaphragm kind gauge protector is utilized in which type of environment? - ANS-Corrosive
A drift meter that uses a small hole in a plate to measure flow is a what? - ANS-A. Venturi
B. Orifice
C. Magnetic
D. Rotometer
A molded case breaker is designed to defend against what? - ANS-A. Overcurrent
B. Overcurrent and quick circuits
C. Short circuits
A pipe has a 10" establishing , and produces 2500 GPM. How many cubic toes/sec? - ANS-Do
Calculations
A resistor with the colours orange, orange/white, XXX, XXX, what's its value? Know your
resistor color values. - ANS-33 G ohms
A reversing starter reverses a 3-segment
motor through interchanging: - ANS-two of the road leads
A sign that goes from - to + is referred to as a what? - ANS-AC
A gentle starter works through? - ANS-controlling the amount of voltage jogging through the
automobiles circuits. It does this through limiting torque inside the motor. This in turn lets in the
smooth starter to reduce the voltage and lets in it to progressively stop decreasing the voltage to
allow for a clean progression of cutting-edge.
A tank is 30' high, 26' wide, crammed 14'. What is the extent? I trust you have to anticipate this
tank is a cylinder. Pay interest if the query ask for the tanks extent or the quantity of the fluid
within the tank. - ANS-Do Calculations
Absoulte Pressure Gauge? What is True? - ANS-Possible solution: Read greater accurate or
14.7 PSI higher
AC reads out how? - ANS-Peak to top.
Arc-rated apparel is rated? - ANS-Cal/Cm2
