The Tool Barn University Final Exam
Watch all the Tool Barn University videos to find answers to this quiz. If you pass the test, you'll receive a coupon for $10 off purchases over $150* *See toolbarn. Com for details.
Questions and Answers
- 1.
This video asks the next question.
- 2.
This video asks the next question.
- 3.
How do you spell the professor’s name?
- A.
Knowital
- B.
Nowithaul
- C.
Knowitaul
- D.
Nowatall
Correct Answer
B. NowithaulExplanation
The correct spelling of the professor's name is "Nowithaul".Rate this question:
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- 4.
How does a brushless motor differ from a brushed motor?
- A.
The magnets and coils switch places
- B.
The brushless motor’s brushes have been plucked off
- C.
The magnets are taken out of the brushless motor
- D.
Brushed motors run more efficiently
Correct Answer
A. The magnets and coils switch placesExplanation
In a brushed motor, the magnets are fixed and the coils rotate, while in a brushless motor, the magnets rotate and the coils are fixed. This reversal of the positions of the magnets and coils is what makes a brushless motor different from a brushed motor.Rate this question:
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- 5.
What does a brushless motor reduce?
- A.
Drag
- B.
Power consumption
- C.
User fatigue
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
A brushless motor reduces drag, power consumption, and user fatigue. Drag is reduced because there are no brushes rubbing against the commutator, resulting in smoother operation. Power consumption is reduced because brushless motors are more efficient and have less energy loss. User fatigue is reduced because brushless motors are lighter and produce less vibration, making them easier to handle. Therefore, all of the above options are correct.Rate this question:
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- 6.
How is electric current measured?
- A.
Ohms
- B.
Volts
- C.
Amps
- D.
Watts
Correct Answer
C. AmpsExplanation
Electric current is measured in amps. Amps, short for amperes, is the unit used to quantify the rate of flow of electric charge in a circuit. It represents the amount of charge passing through a given point in a circuit per unit of time. Therefore, amps is the correct answer for measuring electric current.Rate this question:
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- 7.
By lowering resistance, you increase _________.
- A.
Ohms
- B.
Volts
- C.
Amps
- D.
Watts
Correct Answer
C. AmpsExplanation
By lowering resistance, you increase the flow of electric current, which is measured in amps. This is because according to Ohm's Law, current is directly proportional to voltage and inversely proportional to resistance. Therefore, when resistance decreases, the current increases.Rate this question:
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- 8.
Foot-Pounds divided by RPMs = _____________.
- A.
Torque
- B.
Velocity
- C.
Horsepower
- D.
Amp-hour
Correct Answer
C. HorsepowerExplanation
The correct answer is horsepower. Horsepower is a unit of power that measures the rate at which work is done. In this equation, when Foot-Pounds (a unit of work or torque) is divided by RPMs (revolutions per minute, a measure of rotational speed), the result is horsepower. This equation is commonly used in the field of mechanics to calculate the power output of engines or motors.Rate this question:
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- 9.
A hammer drill uses a ___________ to make the hammering motion while drilling.
- A.
Chuck
- B.
Clutch
- C.
Piston
- D.
Computer chip
Correct Answer
B. ClutchExplanation
A hammer drill uses a clutch to make the hammering motion while drilling. The clutch is a mechanical device that allows the hammer drill to switch between regular drilling and hammering action. When the clutch is engaged, it allows the drill to deliver a rapid hammering motion, which helps in breaking through hard materials like concrete or stone. This feature makes the hammer drill more effective and efficient in drilling tasks that require extra force.Rate this question:
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- 10.
Drilling into ___________ is a practical use for a rotary hammer.
- A.
Concrete
- B.
Light wood
- C.
Plastic piping
- D.
Steel
Correct Answer
A. ConcreteExplanation
A rotary hammer is a powerful tool designed specifically for drilling into hard materials such as concrete. It uses a combination of rotation and hammering action to break through tough surfaces. While it may be possible to use a rotary hammer on other materials like light wood, plastic piping, or steel, it is most commonly used for drilling into concrete due to its strength and capabilities.Rate this question:
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- 11.
Which saw needs oil levels to be maintained?
- A.
A sidewinder circular saw
- B.
A reciprocating saw
- C.
A jig saw
- D.
A worm drive circular saw
Correct Answer
D. A worm drive circular sawExplanation
A worm drive circular saw needs oil levels to be maintained. This is because a worm drive saw has gears that require lubrication to prevent excessive wear and ensure smooth operation. Regularly checking and maintaining the oil levels in a worm drive circular saw is important to keep it functioning properly and extend its lifespan.Rate this question:
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- 12.
Which region prefers the worm drive the most?
- A.
East Coast
- B.
Midwest
- C.
West Coast
- D.
South East
Correct Answer
C. West CoastExplanation
The given answer suggests that the region that prefers the worm drive the most is the West Coast. This implies that compared to the other regions mentioned (East Coast, Midwest, and South East), the West Coast has a higher preference for using the worm drive.Rate this question:
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- 13.
Worm drives are typically sold as cordless units.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement is false because worm drives are not typically sold as cordless units. Worm drives are a type of power tool that are usually sold as corded units, meaning they require a power cord to operate. Cordless units, on the other hand, are powered by batteries and do not require a power cord.Rate this question:
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- 14.
Batteries supply direct current.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Batteries supply direct current because they convert chemical energy into electrical energy. Unlike alternating current (AC), which periodically changes direction, direct current (DC) flows continuously in one direction. This makes batteries suitable for powering devices that require a steady and constant flow of electricity, such as flashlights, remote controls, and portable electronics.Rate this question:
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- 15.
A typical house outlet measures out to ____________.
- A.
60 watts
- B.
120 volts
- C.
100 volts
- D.
80 watts
Correct Answer
B. 120 voltsExplanation
A typical house outlet measures out to 120 volts. This is the standard voltage provided by electrical power companies for residential buildings. It is the amount of electrical potential difference that is needed to power most household appliances and devices.Rate this question:
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- 16.
How is resistance measured?
- A.
Ohms
- B.
Volts
- C.
Amps
- D.
Watts
Correct Answer
A. OhmsExplanation
Resistance is measured in ohms. Ohms is the unit of measurement for electrical resistance. It represents the amount of opposition that a material or component offers to the flow of electric current.Rate this question:
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- 17.
What does the ’S’ in laser stand for?
- A.
Science
- B.
Super
- C.
Stimulated
- D.
Straight
Correct Answer
C. StimulatedExplanation
The 'S' in laser stands for "Stimulated". A laser is a device that emits a beam of coherent light through the process of stimulated emission. In this process, the atoms or molecules in the laser medium are stimulated by an external energy source to emit light photons in phase with each other, resulting in a highly focused and intense beam of light.Rate this question:
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- 18.
The (speed of light) x (time)/2 = ___________.
- A.
Distance
- B.
Energy
- C.
Mass
- D.
Horsepower
Correct Answer
A. DistanceExplanation
The formula provided, (speed of light) x (time)/2, is a common equation used to calculate distance. By multiplying the speed of light by the given time and dividing it by 2, we can determine the distance traveled. Therefore, the correct answer is distance.Rate this question:
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- 19.
An impact driver is best for __________.
- A.
Drilling holes
- B.
Driving fasteners
- C.
Driving holes
- D.
Drilling fasteners
Correct Answer
B. Driving fastenersExplanation
An impact driver is best for driving fasteners because it delivers high torque and rotational force, making it easier to drive screws and bolts into various materials. Unlike a drill, an impact driver applies more force in quick bursts, allowing for faster and more efficient fastening. This tool is especially useful when working with dense or resistant materials, such as hardwood or metal, where a regular drill may struggle to provide enough power.Rate this question:
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- 20.
Drill drivers typically have variable speeds.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Drill drivers typically have variable speeds, meaning that the user can adjust the speed of the drill according to their needs. This feature allows for greater control and precision when drilling holes or driving screws. By being able to change the speed, users can match the speed to the material being drilled or the type of screw being driven, resulting in more efficient and effective drilling.Rate this question:
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Current Version
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Mar 19, 2023Quiz Edited by
ProProfs Editorial Team -
Apr 28, 2014Quiz Created by
ToolBarn
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