WorksheetsAg Mechanics Final
Total questions: 50
Worksheet time: 28mins
What is the measure of electrical pressure that causes current to flow in a circuit?
Amperes
Watts
Volts
Ohms
Which of the following materials is a conductor, allowing electricity to flow easily through it?
Copper
Porcelain
Plastic
Rubber
A motor operates on 120 volts and draws 10 amps. What is the total power consumption in watts?
12
1200
.125
600
What is the primary function of a GFCI outlet?
Prevent over-current
Measure voltage drop
Change AC to DC
Cut off power if current leaves the normal circuit
What wire gauge is required for a 15-amp circuit?
12 AWG
10 AWG
14 AWG
8 AWG
A lighting fixture uses 240 watts on a 120-volt line. How many amps does it draw?
1.25
2.0
12.0
5.0
What is the difference between a 2-way and 3-way switch?
2-way controls lights from three locations
3-way controls one light from two locations
2-way controls one light from two locations
3-way controls lights from three locations
Adding too much water to concrete will:
Weaken it
Prevent cracking
Speed curing
Strengthen it
What test checks the workability of fresh concrete?
Wire gauge test
Capillary test
Slump test
Load test
Wet concrete should be avoided on skin because it is:
Flammable
Cold
Corrosive
Heavy
Standard mortar joint spacing between blocks is:
1/8 in
1/4 in
3/8 in
1/2 in
Gravel in concrete is used to:
Add durability and bulk
Slow drying
Start reaction
Hold aggregates together
In copper soldering, molten solder flowing into a joint is called:
Oxidation
Capillary action
Deburring
Curing
Tool used to remove burrs from inside a copper pipe:
Crimper
Torch
Tube cutter
Deburring tool
Chemical paste used to clean and help solder flow:
Sealant
Primer
Flux
Epoxy
Tool used to verify a proper PEX crimp:
Go/No-Go gauge
Deburring tool
Cutter
Torch
Fitting that joins three pipes at right angles:
90° Elbow
Coupling
End cap
T-fitting
Filler metal safe for potable water systems:
Lead solder
Crimp ring
Torch
Lead-free solder
Which fitting is used to seal the end of a pipe?
Elbow fitting
Coupling fitting
Tee fitting
Cap fitting
What is the chemical paste that cleans metal and helps solder flow into the joint?
Flux paste
Epoxy gel
Joint compound
Thread sealant
Which filler metal is safe for joining copper pipes in potable water systems?
Brazing rod
Lead-free solder
Silver-bearing solder
Lead-core solder
Which fitting joins two pipes in a straight line?
Union
Coupling
Adapter
Elbow
What do we call the process of joining metals using melted solder?
Soldering
Brazing
Welding
Bonding
Which brush is used to clean the inside of copper fittings before soldering?
Paint brush
Wire wheel
Acid brush
Fitting brush / Wire Brush
Which tool is used to ignite a propane torch safely?
Battery igniter
Heat sparker
Match stick
Striker
The hardening agent in concrete is called ________________.
Cemten
Cement
Centem
Mencte
A device that trips when the current is too high.
Circuit tripper
Breaker circuit
Circuit breaker
Current breaker
Complete the following formula. Volts x Amps = ___________
Watts
Pressure
Ohms
GFCI
Which stationary machine using a rotating circule blade is often used to make rip cuts using a fence.
Planer
Miter Saw
Band saw
Table saw
Which measuring tool accurately determines inside, outside, and depth dimensions?
Protractor
Tape measure
Caliper
Framing square
Which portable tool uses an abrasive disc to cut, grind, or smooth metal?
Angle grinder
Die cutter
Router
Jigsaw
Which tool applies a specific amount of torque to bolts and nuts?
Torque Wrench
Pipe wrench
Allen key
Impact Driver
Which device mounts to a workbench to hold materials securely during fabrication or repair?
Miter gauge
Drill press
Hold-down feather
Bench vise
A power tool draws 2400 watts on a 240-volt circuit. What is the amperage?
25 amps
15 amps
10 amps
20 amps
If a machine draws 15 amps of power, which breaker size should be selected?
30-amp breaker
20-amp breaker
15-amp breaker
25-amp breaker
For a 20-amp circuit in typical residential wiring, what is the minimum wire gauge?
14 AWG copper
10 AWG copper
12 AWG copper
16 AWG copper
Which list shows the four main ingredients of concrete?
Cement, clay, lime, water
Cement, sand, rebar, water
Cement, asphalt, aggregate, water
Cement, sand, gravel, water
During curing, which practice should be avoided to protect concrete strength?
Shielding from wind
Controlling temperature changes
Keeping it moist and covered
Letting it dry out quickly
Which tool is unique to copper soldering?
Expansion tool
Press tool
Crimping tool
Torch and flux
Which tool is unique to PEX installation?
Flux brush
Soldering torch
Crimping tool
Copper cutter
A (a) is a complete electrical path. An (b) is an electrical path that is not complete.
What is the name of this piece of equipment?
Concrete Float
Concrete Shovel
Concrete Mixing Truck
Concrete Pump Truck
Match the component that illustrates a circuit breaker.
What measuring tape shows 1 3/8"?
What is the purpose of this construction tool?
cutting oil for drills
small radio
marking lines
food coloring
Name the layout tool
Try Square
Marking Guage
Combination Square
Framing Square / Carpenters Square
Name the layout tool
Try Square
Marking Guage
Combination Square
Carpenter's Square
What are two differences between regular outlets and switched outlets.
Break the tab between hot screws on switched outlet
Switched outlet needs a red and black wire.
Regular outlet needs both red, black, and white wires.
The switched outlet has more voltage than the regular outlet.
Match the following objects with their name.
Single Pole Switch
3 way switch
4 way switch
GFCI outlet
Exterior Outlet
Match the names of tools with their purpose or picture.
Trowel
Bull Float
Hand Float
Masonry Striker
Edger
