Questão 1
Questão
What combination of switches may be used to control a light from four locations?
Questão 2
Questão
Which of the following is the standard length of electrical metallic tubing?
Questão 3
Questão
According to the National Electric Code, which of the following colors are acceptable for the grounded conductor in a circuit?
Questão 4
Questão
Which of the following is a cable type that would be appropriate to use in a barn where the conditions will be moist?
Questão 5
Questão
An "ampere" is the measurement of the?
Responda
-
Flow of electrons through a conductor.
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Push on the electrons in a circuit.
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Resistance to the flow of current.
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Electrical power of the current.
Questão 6
Questão
The major purpose of a ground-fault interrupter is?
Responda
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To protect equipment from damage due to overloading.
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As a replacement for fuses in homes.
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To protect humans from electrical shock due to a ground fault.
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TO protect appliances in case of a natural disaster.
Questão 7
Questão
When connecting the branch circuit wires within a panel board (circuit breaker box), it is common practice to place the white wire?
Responda
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Under the lug of the circuit breaker.
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To the terminal bar with the bare ground.
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To the neutral terminal bar.
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Under the lug of a fuse.
Questão 8
Questão
According to the National Electric Code, when securing electrical cable to a wooden surface (ie. a stud), it is a safe practice to place ?
Responda
-
The stable within 8 inches of a plastic device box.
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The staple within 12 inches of a plastic device box.
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The staple within 18 inches of a plastic device box.
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The staple within 13 inches of a plastic device box.
Questão 9
Questão
Which of the following overcurrent devices are designed to handle a "surge" of power that would occur when a large electrical load is energized?
Responda
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Time delay fuse
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Edison base fuse
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Circuit breaker
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GFCI
Questão 10
Questão
The largest breaker than can be used to safely protect a 12 gauge wire is?
Responda
-
15 Amp breaker.
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20 Amp breaker.
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30 Amp breaker.
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12 Amp breaker.
Questão 11
Questão
According to the National Electric Code, wall switches should be placed how many inches off the floor?
Responda
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36 inches
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42 inches
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48 inches
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None of the above
Questão 12
Questão
Electrical wiring systems are properly grounded by attaching?
Responda
-
A conductor to the water system using PVC pipe.
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A conductor to the water system with a metal pipe.
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A conductor to a copper ground rod 1/2 inch in diameter and 8 feet long.
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Either B or C is correct.
Questão 13
Questão
The purpose of a transformer is to change the amount of ________ from one value to another.
Responda
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Watts
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Ohms
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Voltage
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Microfarads
Questão 14
Questão
Three phase electrical power refers to a system with?
Responda
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Three hot wires, each having a different voltage relative to ground.
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Three central metering locations on the farmstead.
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Three circuits from any service entrance.
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Three hot wires each having the same voltage relative to ground.
Questão 15
Questão
The electrical device that registers the electrical energy used is the?
Responda
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Watt-hour meter.
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Voltmeter.
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Ammeter.
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Ohmmeter.
Questão 16
Questão
An individual circuit is one that is?
Questão 17
Questão
The NEC states that all current interrupting devices must be installed in the?
Responda
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Ungrounded wire of the circuit.
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Grounded wire of the circuit.
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Neutral wire of the circuit.
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Grounding wire of the circuit.
Questão 18
Questão
During the planting season, a farmer decides to recheck the plant population of his/her corn. The farmer has a 6 row-30 inch row width planter. When examining how many seeds he is planting he learns that there are 470 total seeds for the 6 rows after planting 60 feet. How many seeds per acre is the farmer supplying?
Responda
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22,748
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22,700
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22,800
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22,730
Questão 19
Questão
Operating a PTO driven air planter with underinflated tires will cause?
Questão 20
Questão
A farmer is operating his/her 12 row-30 inch planter at 6.5 mph at 85% field efficiency. How many acres will the farmer cover in a 10 hour workday?
Responda
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200.9 Acres/Day
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220 Acres/Day
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20.9 Acres/Day
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None of the above
Questão 21
Questão
How many tons per hour would a farmer bale if he/she is baling a 24' windrow that yields 2 tons/acre? Assume he/she is driving 4 mph and operating at 80% efficiency.
Responda
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18.61 Tons/Hour
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17.61 Tons/Hour
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19 Tons/Hour
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20 Tons/Hour
Questão 22
Questão
The servicing of any machine should be done?
Responda
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According to the operator's manual.
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Whenever you want to do it.
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When the dealer says you should.
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None of the above.
Questão 23
Questão
Before unplugging the baler, the operator should?
Responda
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Shut off the PTO.
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Shut off the tractor.
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Unhook the power source.
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Both A & B.
Questão 24
Questão
When a safety decal becomes destroyed or lost, the operator should?
Questão 25
Questão
1000 RPM power take-off shafts are usually equipped with?
Responda
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21 splines.
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22 splines.
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6 splines.
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5 splines.
Questão 26
Questão
A common pressure range for farm field sprayer applications is?
Responda
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10-80
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75-150
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100-200
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150-300
Questão 27
Questão
Assume you are plowing a field with a 12 foot chisel plow. Your ground speed is 6 MPH. Assuming 90% efficiency, how many acres can you plow in a 10 hour day?
Responda
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60 acres
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70 acres
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150 acres
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None of the above
Questão 28
Questão
The tailings auger on a combine?
Responda
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Augers dirty grain back to the screens for further separation.
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Augers dirty grain into the concave/threshing area of the combine.
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Augers chaff out onto the ground.
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Augers clean grain into the grain tank.
Questão 29
Questão
Timeliness losses result from a machine that is?
Questão 30
Questão
Calculate the width of a field sprayer that is able to spray 15 acres per hour while traveling at 5 mph and operating at 50% efficiency.
Responda
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36 feet
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40 feet
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44 feet
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48 feet
Questão 31
Questão
Penetration of a shovel on a row-crop cultivator is determined by?
Responda
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The degree of pitch of the shovel.
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The setting on the hydraulic cylinder.
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The setting on the hydraulic lever in the cab of the tractor.
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Something other than choices A,B, or C.
Questão 32
Questão
The outer end of a mower cutter bar should?
Responda
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Lead or be set ahead of the inner end of the cutter bar.
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Lag or be set behind the inner end of the cutter bar.
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Neither lag nor lead the inner end of the cutter bar.
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Be ignored when adjusting your mower.
Questão 33
Questão
A combine operator notices an excessive amount of threshed grain behind the straw chopper of a combine. The source of this problem could be?
Questão 34
Questão
Which of the following is not a cause of weld porosity?
Questão 35
Questão
An E6013 rod should be stored at?
Responda
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Room temperature.
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250-300 degrees F.
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350-400 degrees F.
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None of the above.
Questão 36
Questão
When using reverse polarity, the electrode is?
Responda
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Positive.
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Negative.
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Both a and b.
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None of the above.
Questão 37
Questão
When welding a thick plate in the vertical position, you should?
Responda
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Weld using the vertical down technique.
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Weld using the vertical up technique.
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Weld using either the vertical up or vertical down technique.
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Not attempt the weld because it's not possible.
Questão 38
Questão
The first pass when butt welding is called?
Responda
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Butt pass.
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Root pass.
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Filler pass.
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Cap weld.
Questão 39
Questão
Which of the following materials is safe to wear when arc welding?
Responda
-
Polyester
-
Wool
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Cotton
-
Either cotton or wool
Questão 40
Questão
When MIG welding, the lens shade number that should be adequate to protect your eye while welding is?
Questão 41
Questão
Which shielding gas gas allows the greatest penetration when "MIG" welding?
Responda
-
Argon
-
M1
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Carbon Dioxide
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M5
Questão 42
Questão
Which of the following is the primary way to adjust the amperage of a MIG welder?
Responda
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Nozzle angle
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Wire feed speed
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Travel speed
-
Both a and b
Questão 43
Questão
Which type of electrical current best controls the problem of arc blow?
Questão 44
Questão
Which of the following causes the problem of undercutting when arc welding?
Questão 45
Questão
A common wire size when MIG welding is?
Responda
-
.002".
-
.035".
-
.350".
-
.020".
Questão 46
Questão
The type of current most commonly used when MIG welding is (on 95% of all applications)?
Responda
-
DCSP, or electrode negative.
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DCRP, or electrode positive.
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AC.
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All of the above.