2A656 CDC Vol 2 April 2012

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  • 1/100 Questions

    When striking an object with a hammer, the hammer face should be?

    • Parallel to the work
    • Offset to the work
    • Slightly angled
    • Slightly open
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About This Quiz

This quiz, titled '2a656 CDC Vol 2 April 2012', assesses knowledge on the use of various hand tools. It covers practical skills such as the correct use of screwdrivers, hammers, pliers, wrenches, and files, crucial for efficient and safe operations in technical and industrial environments.

2A656 CDC Vol 2 April 2012 - Quiz

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  • 2. 

    The intensity of electrical current flow is measured in?

    • Volts

    • Cycles

    • Amperes

    • Coulombs

    Correct Answer
    A. Amperes
    Explanation
    The intensity of electrical current flow is measured in Amperes. Amperes is the unit used to quantify the rate of flow of electric charge in a circuit. It represents the number of electrons passing through a point in a circuit per second. Volts measure the electrical potential difference, cycles represent the frequency of alternating current, and coulombs measure the quantity of electric charge.

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  • 3. 

    When installing a cotter pin, ensure the prong that bends over the bolt shank does not exceed the bolt nut?

    • Grip

    • Width

    • Length

    • Diameter

    Correct Answer
    A. Diameter
    Explanation
    When installing a cotter pin, it is important to ensure that the prong that bends over the bolt shank does not exceed the diameter of the bolt nut. This is because if the prong exceeds the diameter of the nut, it may not properly secure the nut in place and could potentially lead to the nut becoming loose or falling off. Therefore, it is crucial to select a cotter pin with a diameter that matches or is smaller than the diameter of the bolt nut to ensure a secure installation.

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  • 4. 

    How should you test the heat of a soldering iron?

    • Submerge the tip in flux

    • Hold the tip near your face

    • Touch the tip to the solder, near your body

    • Touch the tip to the solder, away from your body

    Correct Answer
    A. Touch the tip to the solder, away from your body
    Explanation
    To test the heat of a soldering iron, you should touch the tip to the solder away from your body. This is the correct answer because it ensures safety by avoiding any potential harm to your face or body. By touching the tip to the solder away from your body, you can assess the heat of the soldering iron without risking any injuries or accidents.

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  • 5. 

    One advantage of box-end wrenches is that they?

    • Are the fastest to use

    • Can be hammered on saftley

    • Are not likely to slip off the nut

    • Are easy to use on recessed bolts

    Correct Answer
    A. Are not likely to slip off the nut
    Explanation
    Box-end wrenches have a closed loop design that provides a secure grip on the nut. This design reduces the chances of the wrench slipping off the nut while applying force, making it less likely to cause accidents or damage to the workpiece.

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  • 6. 

    What do you use as junction points for circuits that are frequently disconnected?

    • Conneector plugs

    • Terminal boards

    • Shielded wires

    • Splices

    Correct Answer
    A. Conneector plugs
    Explanation
    Connector plugs are used as junction points for circuits that are frequently disconnected because they provide a secure and reliable connection that can easily be disconnected and reconnected without causing any damage to the circuit. They are designed to ensure a proper electrical connection and are commonly used in applications where frequent disconnections are required, such as in audio/video equipment, computer peripherals, and industrial machinery. Connector plugs allow for easy maintenance, troubleshooting, and component replacement without the need for soldering or permanent connections.

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  • 7. 

    How should you remove excess solder from the soldering iron tip?

    • Give the iron a quick flip

    • Wipe the iron on a damp sponge of rag

    • Gently tap the iron on a trash can edge

    • Let the iron cool and file away excess

    Correct Answer
    A. Wipe the iron on a damp sponge of rag
    Explanation
    To remove excess solder from the soldering iron tip, it is recommended to wipe the iron on a damp sponge or rag. This method helps to clean the tip and remove any excess solder, allowing for better soldering performance. The dampness of the sponge or rag helps to cool down the solder and prevent it from sticking to the tip. By wiping the iron, any excess solder can be easily removed, ensuring a clean and efficient soldering process.

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  • 8. 

    A permanant magnet?

    • Loses its retentivity

    • Keeps its magnetism

    • Loses its permiablility

    • Keeps small amounts of reluctance

    Correct Answer
    A. Keeps its magnetism
    Explanation
    A permanent magnet is a material that retains its magnetism over a long period of time. It is able to generate a magnetic field without the need for an external power source. This is due to the alignment of its magnetic domains, which remain in a fixed position even when the magnet is not in contact with other magnetic materials. Therefore, the correct answer is "Keeps its magnetism."

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  • 9. 

    In a series circuit, when 24 volts is applied and total resistance os 6 ohms, what is the amperage?

    • 2 amps

    • 4 amps

    • 6 amps

    • 12 amps

    Correct Answer
    A. 4 amps
    Explanation
    In a series circuit, the total resistance is equal to the sum of the individual resistances. Using Ohm's Law (V = IR), we can rearrange the formula to solve for amperage (I = V/R). Given that the voltage is 24 volts and the total resistance is 6 ohms, we can substitute these values into the formula to find the amperage. Therefore, the amperage is 4 amps.

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  • 10. 

    The neutralizing agent for sulfuric acid is

    • Bicarbonate of soda

    • Distilled water

    • Boric acid

    • Water

    Correct Answer
    A. Bicarbonate of soda
    Explanation
    Bicarbonate of soda, also known as baking soda, is the correct neutralizing agent for sulfuric acid. When sulfuric acid reacts with bicarbonate of soda, it produces carbon dioxide gas, water, and a salt. This reaction helps to neutralize the acidity of sulfuric acid and reduce its corrosive properties. Distilled water, boric acid, and regular water are not effective neutralizing agents for sulfuric acid.

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  • 11. 

    Screwdrivers are sized by the length of the?

    • Blade

    • Shank

    • Handle

    • Ferrule

    Correct Answer
    A. Shank
    Explanation
    Screwdrivers are sized by the length of the shank. The shank refers to the cylindrical portion of the screwdriver that connects the handle to the blade. The length of the shank determines the overall length of the screwdriver and is an important factor when selecting the appropriate tool for a specific task. A longer shank may be needed for reaching screws in deep or tight spaces, while a shorter shank may be more suitable for smaller, more precise jobs.

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  • 12. 

    What process transfers electrical energy from the primary to the secondary winding of a transformer?

    • Energy transformation

    • Mutual induction

    • Reluctance

    • Radiation

    Correct Answer
    A. Mutual induction
    Explanation
    Mutual induction is the process that transfers electrical energy from the primary to the secondary winding of a transformer. This occurs when a changing current in the primary coil creates a changing magnetic field, which then induces a voltage in the secondary coil. The two coils are in close proximity and have a mutual influence on each other, allowing for the transfer of energy between them.

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  • 13. 

    All of these areas are prone to corrosion, except

    • Where dissimilar metals contact

    • Fittings and plumbing

    • Overlapping joints

    • Flat, coated surfaces

    Correct Answer
    A. Flat, coated surfaces
    Explanation
    Flat, coated surfaces are not prone to corrosion because they have a protective coating that prevents direct contact between the metal and the surrounding environment. This coating acts as a barrier, preventing moisture and other corrosive agents from reaching the metal surface. On the other hand, dissimilar metals in contact, fittings and plumbing, and overlapping joints can create galvanic corrosion due to the presence of an electrolyte (such as moisture) and the potential difference between the metals. This can lead to accelerated corrosion in these areas.

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  • 14. 

    After the first hour a nickel-cadmium (NiCad) battery is under test, how often should you monitor the individual cells?

    • 10 minute intervals

    • 15 minute intervals

    • 20 minute intervals

    • 25 minute intervals

    Correct Answer
    A. 15 minute intervals
    Explanation
    When a nickel-cadmium (NiCad) battery is under test, it is recommended to monitor the individual cells at 15 minute intervals. This is important because monitoring the cells allows you to track their performance and ensure that they are functioning properly. By checking the cells at regular intervals, any issues or abnormalities can be detected early on, allowing for timely maintenance or replacement if needed. Monitoring at 15 minute intervals strikes a balance between frequent monitoring and giving enough time for the cells to stabilize and show any potential issues.

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  • 15. 

    Before storing a tourque wrench you have used, you should?

    • Lubricate it with a light oil

    • Set it at its lowest setting

    • Check it for accuracy

    • Set it at zero setting

    Correct Answer
    A. Set it at its lowest setting
    Explanation
    Before storing a torque wrench that has been used, it is recommended to set it at its lowest setting. This helps to relieve any tension on the internal spring mechanism, preventing it from becoming weak or damaged over time. By setting it at the lowest setting, the torque wrench is in a safe and neutral position for storage. This practice helps to maintain the accuracy and longevity of the torque wrench.

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  • 16. 

    When tourquing a bolt assembly, what us the force applied to overcome friction?

    • Torsion

    • Tension

    • Tensile

    • Shear

    Correct Answer
    A. Torsion
    Explanation
    When torquing a bolt assembly, the force applied to overcome friction is called torsion. Torsion is the twisting or rotational force that is applied to a bolt or fastener in order to tighten it. This force helps to overcome the friction between the threads of the bolt and the nut or the mating surfaces, allowing the bolt to be securely tightened. Torsion is commonly used in mechanical assemblies to ensure that the fasteners are properly tightened and can withstand the required loads and forces.

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  • 17. 

    Which technical order (TO) provides instructions for the Brady Wire Making System?

    • 00-20-1

    • 00-20-2

    • 1-1A-8

    • 1-1A-14

    Correct Answer
    A. 1-1A-14
    Explanation
    The correct answer is 1-1A-14. This technical order provides instructions for the Brady Wire Making System.

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  • 18. 

    Never use cushioned clamps in any bonding or grounding connection, because the cushion acts as?

    • A conductor

    • An insulator

    • A semi conductor

    • An alternate path for current

    Correct Answer
    A. An insulator
    Explanation
    Cushioned clamps should not be used in bonding or grounding connections because the cushion acts as an insulator. Insulators do not allow the flow of electric current, which is not desirable in these types of connections where the goal is to provide a low-resistance path for current to flow and prevent the buildup of static electricity. Using an insulating material like a cushion in these connections can compromise their effectiveness and safety.

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  • 19. 

    Prior to soldering electronic equipment, ensure the equipment is?

    • Disconnected from the power source

    • Connected to the power source

    • Protected from voltage spikes

    • Properly grounded

    Correct Answer
    A. Disconnected from the power source
    Explanation
    Before soldering electronic equipment, it is important to disconnect it from the power source to avoid any potential electrical hazards. Soldering involves the use of heat and can pose a risk of electric shock or damage to the equipment if it is still connected to a power source. By disconnecting the equipment, it ensures the safety of the person performing the soldering as well as the integrity of the equipment being soldered.

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  • 20. 

    A precaution concerning tourque wrenches is to?

    • Never use an extension with a tourque wrench

    • Never use another wrench to secure a bolt before torquing

    • Never us a tourque wrench that has been dropped unless it has been verified

    • Always calculate the leverage advantage before using a tourque wrench above its rated compacity

    Correct Answer
    A. Never us a tourque wrench that has been dropped unless it has been verified
    Explanation
    The correct answer states that a precaution concerning torque wrenches is to never use a torque wrench that has been dropped unless it has been verified. This means that if a torque wrench has been dropped, it should be checked or verified for any damage or calibration issues before using it again. Dropping a torque wrench can potentially affect its accuracy and reliability, so it is important to ensure that it is still in proper working condition before using it for torque applications.

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  • 21. 

    Oxide film is removed from the surface of metals durning the soldering process by the use of?

    • A bristle brush

    • The soldering flux

    • A soldering iron tip

    • An approved solvent

    Correct Answer
    A. The soldering flux
    Explanation
    During the soldering process, oxide films can form on the surface of metals, which can prevent proper bonding. The soldering flux is used to remove these oxide films by chemically reacting with them. The flux contains active ingredients that dissolve or reduce the oxides, allowing the solder to adhere properly to the metal surface. Therefore, the soldering flux is the correct answer for removing oxide films during soldering.

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  • 22. 

    The greater the current flow through an electromagnet, the?

    • Greater the retentivity

    • Lesser the field strength

    • Greater the field strength

    • Higher the core reluctance

    Correct Answer
    A. Greater the field strength
    Explanation
    The greater the current flow through an electromagnet, the stronger the magnetic field it produces. This is because the magnetic field is directly proportional to the current flowing through the electromagnet. As the current increases, more magnetic field lines are generated, resulting in a stronger field strength.

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  • 23. 

    An acceptable tinned wire has?

    • No insulation clearance and wire strands covered with solder, but still visible

    • No insulation clearance and wire starands covered in solder, but not visible

    • An insulation clearance equal to the diameter of the wire and wire strands covered with solder, but still visible

    • An insulation clearance equal to the diameter of the wire and wire strands partially covered with solder, and still visible

    Correct Answer
    A. An insulation clearance equal to the diameter of the wire and wire strands covered with solder, but still visible
    Explanation
    An acceptable tinned wire has an insulation clearance equal to the diameter of the wire, which means that there is no insulation touching the wire strands. The wire strands are covered with solder, but the solder is still visible. This ensures that the wire is properly tinned and protected from corrosion while allowing for easy identification and inspection of the soldered area.

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  • 24. 

    In measuring an unknown voltage with a voltmeter, what range should you use first?

    • Ohmmeter range

    • Mid-meter range

    • Lowest meter range

    • Highest meter range

    Correct Answer
    A. Highest meter range
    Explanation
    When measuring an unknown voltage with a voltmeter, it is best to start with the highest meter range. This ensures that the voltmeter can handle a wide range of voltages and prevents any potential damage to the meter. Starting with the highest range also allows for more accurate readings, as it provides a larger scale for the voltage measurement. If the voltage is too high for the highest range, then the meter range can be adjusted accordingly.

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  • 25. 

    The capacity of a lead-acid battery is measured in

    • Amperes hours

    • Specific gravity

    • Amps

    • Volts

    Correct Answer
    A. Amperes hours
    Explanation
    The capacity of a lead-acid battery is measured in amperes hours because it represents the amount of charge that the battery can deliver over a specific period of time. It indicates the total amount of current that the battery can supply continuously for one hour. This measurement is important in determining the battery's ability to power devices and how long it can last before needing to be recharged.

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  • 26. 

    What kind of pliers are good for pulling cotter pins?

    • Snap rings

    • Vise grip

    • Long-nose

    • Diagonal cutting

    Correct Answer
    A. Diagonal cutting
    Explanation
    Diagonal cutting pliers are good for pulling cotter pins because they have sharp, angled jaws that can easily grip and cut through the pin. The diagonal cutting pliers provide a strong and precise cutting action, making them ideal for removing cotter pins effectively.

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  • 27. 

    Tubing used in aircraft oxygen, fuel, lubrication, fire extinguishing, instruments, hydraulic, and vent lines is?

    • Stainless steel and teflon alloy

    • Stainless steel and copper tubing

    • Aluminum alloy and copper tubing

    • Aluminum alloy and stainless steel

    Correct Answer
    A. Aluminum alloy and stainless steel
    Explanation
    The tubing used in aircraft for various purposes such as oxygen, fuel, lubrication, fire extinguishing, instruments, hydraulic, and vent lines is made of aluminum alloy and stainless steel. These materials are chosen for their durability, resistance to corrosion, and ability to withstand high pressure and temperature conditions in aircraft operations. Stainless steel is often used for its strength and resistance to corrosion, while aluminum alloy is lightweight and has good conductivity properties.

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  • 28. 

    Wires and wire bundles should be supported by clamps or grommets at intervals of no more than?

    • 15 inches

    • 20 inches

    • 24 inches

    • 26 inches

    Correct Answer
    A. 24 inches
    Explanation
    Wires and wire bundles should be supported by clamps or grommets at intervals of no more than 24 inches. This is important to prevent the wires from sagging or becoming loose, which could lead to electrical malfunctions or hazards. Adequate support ensures that the wires are secured and organized, reducing the risk of damage or interference with other components. By following this guideline, the wires can be properly managed and maintained, promoting safety and efficient operation.

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  • 29. 

    Thermal shunts are used in soldering because they?

    • Make the part heat faster

    • Protect heat-sensitive components

    • Keep the lead and component at the same temperature

    • Give good holding action to the component being soldered

    Correct Answer
    A. Protect heat-sensitive components
    Explanation
    Thermal shunts are used in soldering to protect heat-sensitive components. When soldering, excessive heat can damage or destroy delicate components. Thermal shunts help to dissipate heat and prevent it from reaching these sensitive parts, ensuring their protection during the soldering process.

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  • 30. 

    When marking wire connections to turret terminals, wrap the wire around the terminal at least?

    • 90 degrees

    • 180 degrees

    • 270 degrees

    • 360 degrees

    Correct Answer
    A. 180 degrees
    Explanation
    When marking wire connections to turret terminals, it is recommended to wrap the wire around the terminal at least 180 degrees. This ensures a secure and reliable connection between the wire and the terminal, minimizing the risk of the wire coming loose or disconnecting. Wrapping the wire around the terminal at this angle also helps to maintain good electrical conductivity and reduce the chances of any signal loss or interference.

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  • 31. 

    How many British thermal units (BTUs) does it take to raise the temperature of 5 pounds of water 5 degrees F?

    • 1

    • 5

    • 17

    • 25

    Correct Answer
    A. 25
    Explanation
    It takes 25 BTUs to raise the temperature of 5 pounds of water by 5 degrees F.

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  • 32. 

    The indent-type crimping tool should be used only on?

    • Preinsulated splices

    • Preinsulated terminals

    • Noinsulated terminals

    • Noninsulated terminal boards

    Correct Answer
    A. Noinsulated terminals
    Explanation
    The indent-type crimping tool should be used only on non-insulated terminals. This tool is specifically designed to create a secure and reliable connection for terminals that do not have any insulation. It may not be suitable for use on terminals that have pre-insulated splices or terminals, as the insulation may interfere with the crimping process. Similarly, it may not be recommended for use on non-insulated terminal boards, as these boards may require a different type of crimping tool for proper installation.

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  • 33. 

    What is the minimum amount of time that a sealed lead-acid battery (SLAB) servicing record must be maintained after a battery has been issued to the flight line?

    • 6 months

    • 12 months

    • 18 months

    • 24 months

    Correct Answer
    A. 12 months
    Explanation
    A sealed lead-acid battery (SLAB) servicing record must be maintained for a minimum of 12 months after a battery has been issued to the flight line. This record is important for tracking the battery's maintenance history, ensuring that it is properly serviced and maintained. By keeping the record for 12 months, it allows for sufficient time to review the battery's performance and identify any issues or trends that may need to be addressed. Additionally, this duration aligns with industry standards and regulations for battery maintenance and documentation.

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  • 34. 

    The current in a two-phase induction motor is?

    • Reversed 60 times a second

    • Purely direct current (DC)

    • 90 degrees out of phase

    • In phase

    Correct Answer
    A. 90 degrees out of phase
    Explanation
    The current in a two-phase induction motor is 90 degrees out of phase. This means that the current in one phase lags behind the current in the other phase by 90 degrees. This phase difference is necessary for the proper functioning of the motor and allows for the creation of a rotating magnetic field, which in turn drives the motor's rotor.

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  • 35. 

    Which logic gate has a high output when all inputs are low?

    • OR

    • AND

    • NOR

    • Inverted

    Correct Answer
    A. NOR
    Explanation
    The NOR gate has a high output when all inputs are low because it is a combination of an OR gate followed by a NOT gate. The OR gate produces a high output when any of its inputs are high, but the NOT gate inverts that output. Therefore, when all inputs of the NOR gate are low, the OR gate produces a low output, which is then inverted to a high output by the NOT gate.

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  • 36. 

    You should troubleshoot a 28-volts direct current (DC) circuit for a blown fuse (short) with a/an

    • Ammeter

    • Ohmmeter

    • Voltmeter

    • Wheatstone bridge

    Correct Answer
    A. Ohmmeter
    Explanation
    To troubleshoot a blown fuse (short) in a 28-volts DC circuit, an ohmmeter is used. An ohmmeter measures the resistance in a circuit, which can help identify if there is a short circuit caused by a blown fuse. By connecting the ohmmeter across the fuse, it can determine if there is continuity or a break in the circuit. If the ohmmeter shows a very low resistance or a reading close to zero, it indicates a short circuit and confirms that the fuse is blown.

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  • 37. 

    The number of cells in a normal nickel-cadium (Ni-Cad) battery for a 24v aircraft system is

    • 12

    • 14

    • 19

    • 24

    Correct Answer
    A. 19
  • 38. 

    The vent plug on a nickel-cadmium (Ni-Cad) battery cell opens to relieve pressure in pounds per square inch (psi) between

    • 2-10psi

    • 5-15psi

    • 12-20psi

    • 15-25psi

    Correct Answer
    A. 2-10psi
    Explanation
    The vent plug on a nickel-cadmium (Ni-Cad) battery cell opens to relieve pressure in pounds per square inch (psi) between 2-10psi. This means that when the pressure inside the battery exceeds 2-10psi, the vent plug will open to release the excess pressure. This is important because high pressure can lead to the rupture or explosion of the battery cell, causing damage or injury. By opening at the specified range, the vent plug ensures that the pressure is safely released, preventing any potential hazards.

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  • 39. 

    When heat is applied to thermofit material, which is used in compact wire bundles, it will shrink by at least?

    • One and a half times its original diameter

    • One-fourth its original diameter

    • One-half its original diameter

    • One time its original diameter

    Correct Answer
    A. One-half its original diameter
    Explanation
    When heat is applied to thermofit material, it will shrink by one-half its original diameter.

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  • 40. 

    You can best determine a soldered connection's quality by?

    • Reducing it slightly

    • Prying on it with a soldering aid

    • Giving it a thorough visual inspection

    • Pulling on it gently with your fingers

    Correct Answer
    A. Giving it a thorough visual inspection
    Explanation
    To determine the quality of a soldered connection, the best method is to give it a thorough visual inspection. By closely examining the solder joint, one can look for any signs of defects such as cold solder joints, insufficient solder, or improper alignment. Visual inspection allows for the identification of any visible issues that may affect the connection's integrity and functionality.

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  • 41. 

    What is the minimum personal protective equipment (PPE) you are required to wear when performing routine nickel-cadium (Ni-Cad) battery maintenance?

    • Face shield and apron

    • Rubber gloves and apron

    • Face shield, rubber apron, and rubber gloves

    • Rubber gloves, face shield, and rubber boots

    Correct Answer
    A. Face shield, rubber apron, and rubber gloves
    Explanation
    When performing routine nickel-cadmium (Ni-Cad) battery maintenance, it is important to protect oneself from potential hazards. The correct answer is face shield, rubber apron, and rubber gloves. A face shield is necessary to protect the face from any splashes or spills that may occur during the maintenance process. A rubber apron provides protection for the body against any chemical splashes or spills. Rubber gloves are essential to protect the hands from direct contact with the battery and any hazardous materials. Together, these three pieces of personal protective equipment (PPE) provide the minimum level of protection required for Ni-Cad battery maintenance.

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  • 42. 

    Which wrench is usually the strongest, fastest, and safest to in a tool hit?

    • Socket

    • Box-end

    • Open-end

    • Adjustable

    Correct Answer
    A. Socket
    Explanation
    A socket wrench is usually the strongest, fastest, and safest tool to use for hitting because it provides a secure grip on the fastener, allowing for maximum torque and minimizing the risk of slipping or stripping the bolt. It is also designed to be used with a ratchet, which allows for quick and efficient tightening or loosening of bolts. The socket wrench's design and functionality make it the preferred choice for professionals and DIY enthusiasts alike.

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  • 43. 

    What type of gauge would you use to measure an actuating switch clearance?

    • Gap

    • Thread

    • Pressure

    • Thickness

    Correct Answer
    A. Thickness
    Explanation
    To measure an actuating switch clearance, you would use a thickness gauge. This type of gauge allows you to measure the gap or space between two objects accurately. In the context of an actuating switch, a thickness gauge would be used to determine the distance or clearance between the switch and its surrounding components. This measurement is important to ensure proper functioning and prevent any interference or malfunction.

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  • 44. 

    Wire insulation may consist of several layers of nonconducting material that provides?

    • Thermal protection and fluid resistance

    • A method of identification

    • Protection from freezing

    • Strength and flexibility

    Correct Answer
    A. Thermal protection and fluid resistance
    Explanation
    Wire insulation may consist of several layers of nonconducting material that provides thermal protection and fluid resistance. This is important because it helps to prevent the wire from overheating and potentially causing a fire. Additionally, the insulation helps to protect the wire from any liquids or fluids that it may come into contact with, preventing any damage or short circuits.

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  • 45. 

    Which color code and corresponding wire sizes are valid for a preinsulated terminal?

    • Yellow- 12 and 10

    • Brown- 22 and 20

    • Blue- 20 and 18

    • Red- 16 and 14

    Correct Answer
    A. Yellow- 12 and 10
    Explanation
    The color code yellow corresponds to wire sizes 12 and 10. This means that a preinsulated terminal with a yellow color code can accommodate wires with either a size 12 or size 10.

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  • 46. 

    How should a clinched-lead terminal lay in respect to the printed circuit pad?

    • 90 degrees from the pad

    • 180 degrees from the pad

    • Flat on the pad and in the direction of the printed circuit wiring pattern

    • Flat on the pad facing away from the direction of the circuit wiring pattern

    Correct Answer
    A. Flat on the pad and in the direction of the printed circuit wiring pattern
    Explanation
    A clinched-lead terminal should lay flat on the pad and in the direction of the printed circuit wiring pattern. This ensures proper alignment and connection between the terminal and the circuit. Laying the terminal flat on the pad also helps to maintain stability and prevent any potential damage or disconnection.

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  • 47. 

    How do you connect an ammeter in a circuit?

    • In series

    • In parallel

    • With a resistor

    • With a capacitor

    Correct Answer
    A. In series
    Explanation
    An ammeter is connected in series in a circuit because it needs to be a part of the current path in order to measure the current flowing through the circuit. Placing the ammeter in parallel would create a short circuit and disrupt the flow of current. Connecting it with a resistor or a capacitor would not allow it to accurately measure the current. Therefore, connecting an ammeter in series is the correct way to ensure accurate measurement of current in a circuit.

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  • 48. 

    The last verification date on a tourques wrench must not exceed?

    • 60 workdays

    • 30 workdays

    • 60 calender-days

    • 30 calender-days

    Correct Answer
    A. 60 calender-days
    Explanation
    The last verification date on a torque wrench must not exceed 60 calendar-days. This means that the torque wrench should be verified and calibrated within 60 days of its last verification date to ensure its accuracy and reliability. It is important to regularly verify torque wrenches to maintain their effectiveness and prevent any potential errors or inaccuracies in torque measurements.

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  • 49. 

    The phase angle of an alternating current (AC) sine wave is measured in?

    • Hertz

    • Seconds

    • Minutes

    • Degrees

    Correct Answer
    A. Degrees
    Explanation
    The phase angle of an alternating current (AC) sine wave is measured in degrees. The phase angle represents the angular difference between the current waveform and a reference waveform. It is commonly used to describe the timing or phase relationship between different AC waveforms. Degrees is the standard unit for measuring angles, and in this context, it is used to quantify the phase angle.

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  • Apr 06, 2012
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