# Review # 1: Electric, Pneumatic And Hydraulic Tools And Power Drills

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Quizzes Created: 13 | Total Attempts: 6,557
Questions: 12 | Attempts: 290

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Questions and Answers
• 1.

### What is an example of an AC source of power?

• A.

Wall receptacle

• B.

Battery

• C.

Answer option 3

• D.

Answer option 4

Correct Answer
A. Wall receptacle
Explanation
An example of an AC source of power is a wall receptacle. A wall receptacle is connected to the electrical grid and provides alternating current (AC) power to devices that are plugged into it. This is in contrast to a battery, which provides direct current (DC) power.

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• 2.

### What is an example of a DC source of power?

• A.

Wall receptacle

• B.

Battery

• C.

Answer option 3

• D.

Answer option 4

Correct Answer
B. Battery
Explanation
A battery is an example of a DC (direct current) source of power. Unlike an AC (alternating current) source, which periodically changes direction, a DC source provides a constant flow of electric charge in one direction. Batteries, such as those used in electronic devices, cars, or homes with solar power systems, convert chemical energy into electrical energy and provide a steady DC power supply.

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• 3.

### Which of the following is not an example of a type of power tool?

• A.

Hydraulic

• B.

Electric

• C.

Pneumatic

• D.

Manually operated

Correct Answer
D. Manually operated
Explanation
The given options consist of different types of power tools. Hydraulic, electric, and pneumatic power tools are all examples of power tools that are operated using a power source. However, "manually operated" is not an example of a type of power tool as it implies that the tool is operated by hand without the use of any external power source.

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• 4.

### What should you do before replacing any parts such as bits, blades, or discs?

• A.

Disconnect power source

• B.

Detach the part

• C.

Inspect the part for cracks

• D.

Answer option 4

Correct Answer
A. Disconnect power source
Explanation
Before replacing any parts such as bits, blades, or discs, it is important to disconnect the power source. This is necessary to ensure safety and prevent any potential accidents or injuries. By disconnecting the power source, you eliminate the risk of electric shock or other hazards associated with working on powered equipment.

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• 5.

### What should you never activate on a power tool?

• A.

Trigger lock

• B.

Chuck

• C.

Reverse switch

• D.

Answer option 4

Correct Answer
A. Trigger lock
Explanation
The trigger lock should never be activated on a power tool because it can prevent the tool from being turned off easily. This can be dangerous as it may lead to accidental activation of the tool and potential injuries.

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• 6.

### What holds the drill bit in place on a power drill?

• A.

Chuck

• B.

Grip

• C.

Trigger lock

• D.

Answer option 4

Correct Answer
A. Chuck
Explanation
The chuck is the part of a power drill that holds the drill bit in place. It is a mechanism that allows the user to tighten or loosen the grip on the drill bit, securing it in place during operation. The chuck typically consists of three jaws that can be adjusted using a key or by hand, depending on the type of drill. This ensures that the drill bit remains securely held in place while drilling.

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• 7.

### Which drill is used when an AC power source is not available?

• A.

Cordless drill

• B.

Hammer drill

• C.

Pneumatic drill

• D.

Answer option 4

Correct Answer
A. Cordless drill
Explanation
A cordless drill is used when an AC power source is not available because it operates on a rechargeable battery. This allows the drill to be used in remote locations or areas without access to electricity. Cordless drills are portable and convenient, making them a popular choice for tasks that require drilling but lack a power source.

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• 8.

### Which power drill is used when there is no source of electricity (AC or DC)?

• A.

Pneumatic drill

• B.

Hammer drill

• C.

Cordless drill

• D.

Answer option 4

Correct Answer
A. Pneumatic drill
Explanation
A pneumatic drill is used when there is no source of electricity because it is powered by compressed air. Unlike AC or DC-powered drills, which require an electrical outlet or battery, a pneumatic drill can operate using air pressure from a separate air compressor. This makes it a suitable choice for situations where electricity is not available or accessible. A hammer drill, on the other hand, is still powered by electricity, and a cordless drill relies on a rechargeable battery. Therefore, the correct answer is the pneumatic drill.

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• 9.

### Proper ground fault protection on a power drill will prevent what?

• A.

Power outage

• B.

Electric shock

• C.

Electrical sparks

• D.

Answer option 4

Correct Answer
B. Electric shock
Explanation
Proper ground fault protection on a power drill will prevent electric shock. Ground fault protection is a safety measure that detects any imbalance in the electrical current and immediately shuts off the power to prevent the risk of electric shock. This is especially important for power drills, as they are often used in environments where there is a higher risk of coming into contact with water or damp conditions, which can increase the likelihood of electric shock. By having proper ground fault protection, the risk of electric shock is minimized, ensuring the safety of the user.

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• 10.

### Power tools utilize which device to prevent electrical shock?

• A.

GFCI

• B.

Battery

• C.

Trigger lock

• D.

Answer option 4

Correct Answer
A. GFCI
Explanation
Power tools utilize GFCI (Ground Fault Circuit Interrupter) to prevent electrical shock. GFCI is a safety device that monitors the flow of electricity and quickly shuts off power if it detects any imbalance or leakage. It provides protection by interrupting the circuit when it senses a ground fault, thus preventing the risk of electrocution. This device is commonly used in power tools to ensure the safety of the user while operating the tool.

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• 11.

### What should be used to keep a drill's air vent clean?

• A.

Small brush

• B.

Vacuum cleaner

• C.

Drill bit

• D.

Answer option 4

Correct Answer
A. Small brush
Explanation
A small brush should be used to keep a drill's air vent clean. This is because a small brush can effectively remove dust and debris from the vent, ensuring proper airflow and preventing overheating of the drill. Using a vacuum cleaner might not be as effective in reaching small and tight spaces, while a drill bit is used for drilling holes and not for cleaning purposes.

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• 12.

### What should be tightened in the chuck before drilling?

• A.

Drill bit

• B.

Trigger lock

• C.

Screws

• D.

Answer option 4

Correct Answer
A. Drill bit
Explanation
Before drilling, the chuck should be tightened around the drill bit. The chuck is the part of the drill that holds the drill bit securely in place. By tightening the chuck, it ensures that the drill bit is held firmly and will not slip or wobble during drilling, allowing for accurate and effective drilling.

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