# 4th Form Mechanical Engineering Technology

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Mechanical Engineering Technology is the use of engineering for the creation of useful products or production machinery. As you are an aspiring mechanical engineer who has upcoming end of term exam the quiz below is designed to help you revise for it with ease. Give it a try and best of wishes!

• 1.

### The process of cutting internal threads by hand is known as:

• A.

Die working

• B.

• C.

Tapping

• D.

Drilling

C. Tapping
Explanation
Tapping is the correct answer because it refers to the process of cutting internal threads by hand. This involves using a tap, which is a tool with sharp cutting edges that is inserted into a pre-drilled hole. The tap is then rotated and guided into the hole to create the internal threads. This process is commonly used in metalworking and plumbing applications to create threaded holes for screws, bolts, or fittings.

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• 2.

### The size of a hammer is usually determined by the:

• A.

• B.

Length of its handle

• C.

Size of its face

• D.

Overall length of the hammer

Explanation
The size of a hammer is usually determined by the weight of its head. The weight of the head affects the force and impact that the hammer can deliver. A heavier head will generate more force, making it suitable for heavier tasks, while a lighter head is more appropriate for lighter tasks. The length of the handle and the size of the face may vary depending on the specific use of the hammer, but the weight of the head is a key factor in determining its size.

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• 3.

### _____________________ is the property of a metal to be drawn into fine wires.

• A.

Annealing

• B.

Malleability

• C.

Softness

• D.

Ductility

D. Ductility
Explanation
Ductility is the property of a metal to be drawn into fine wires. It refers to the ability of a material to deform under tensile stress, allowing it to be stretched into a wire without breaking. This property is important in various industries, such as electrical wiring and jewelry making, where metals need to be formed into thin and flexible shapes. Annealing, malleability, and softness are not specifically related to the ability to be drawn into wires, making ductility the correct answer.

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• 4.

### The ______________ is used to mark lines on the work piece during the layout process.

• A.

Scriber

• B.

Marker

• C.

Pencil

• D.

Chalk

A. Scriber
Explanation
A scriber is a tool that is used to mark lines on a work piece during the layout process. It typically has a sharp point or edge that can be used to make precise and accurate markings on various materials. This tool is commonly used in woodworking, metalworking, and other crafts where precise measurements and markings are necessary for accurate cutting and shaping of the work piece.

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• 5.

### Which of the following is an example of a hazard?

• A.

Tools packed neatly in their correct places

• B.

Oil spilled on the floor of the workshop

• C.

Workshop well clean and tidy

• D.

Safety zones correctly identified

B. Oil spilled on the floor of the workshop
Explanation
Oil spilled on the floor of the workshop is an example of a hazard because it poses a potential danger or risk to the people working in the workshop. A spilled oil can create a slippery surface, increasing the likelihood of accidents such as slips, falls, or even fires if it comes into contact with a heat source. This hazard needs to be addressed promptly to ensure the safety of the workshop and its workers.

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• 6.

### ALL the following are types of wrench EXCEPT:

• A.

Box-end

• B.

Allen or hexagonal

• C.

Offset

• D.

Sockets

C. Offset
Explanation
The given question asks for the type of wrench that is NOT included in the list. The options provided are box-end, allen or hexagonal, offset, and sockets. The correct answer is "offset" because all the other options are types of wrenches commonly used for different purposes. A box-end wrench has a closed loop at one or both ends, an allen or hexagonal wrench has a hexagonal-shaped head, and sockets are used with a ratchet handle. However, an offset wrench refers to a type of wrench with an angled or bent handle, which is not mentioned in the list of options.

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• 7.

### The hammer most frequently used by machinists is known as the______________.

• A.

Ball peen hammer

• B.

Claw hammer

• C.

Soft-face hammer

• D.

Machinists hammer

A. Ball peen hammer
Explanation
The hammer most frequently used by machinists is the ball peen hammer. This type of hammer has a flat face on one side and a rounded, ball-shaped peen on the other side. The ball peen hammer is commonly used in metalworking and machining tasks because the peen can be used to shape and bend metal, while the flat face is used for striking and driving. Its design makes it versatile and suitable for various applications in the machining industry.

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• 8.

### Which grade of file has the closest spacing between their teeth?

• A.

Rough

• B.

Second cut

• C.

Bastard

• D.

Coarse

B. Second cut
Explanation
The second cut grade of file has the closest spacing between its teeth compared to the other options. This means that the teeth are more closely packed together, resulting in a finer and smoother finish when using the file.

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• 9.

### Which of the following is a category of wrenches?

• A.

Solid-end

• B.

• C.

Boxed-end

• D.

Hexagonal

Explanation
Adjustable wrenches are a category of wrenches that have a movable jaw, allowing the user to adjust the size of the opening to fit different sizes of nuts and bolts. This feature makes adjustable wrenches versatile and suitable for a wide range of applications. Solid-end wrenches, boxed-end wrenches, and hexagonal wrenches are also types of wrenches, but they belong to different categories.

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• 10.

### All the following are types of grinding machines EXCEPT __________________.

• A.

Buff and grinder

• B.

Bench grinder

• C.

Pedestal grinder

• D.

Floor grinder

D. Floor grinder
Explanation
The given question asks for the type of grinding machine that is NOT included in the list. The options provided include buff and grinder, bench grinder, pedestal grinder, and floor grinder. The correct answer is floor grinder because it is the only option that is not a type of grinding machine. Buff and grinder, bench grinder, and pedestal grinder are all types of grinding machines commonly used for various purposes.

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• 11.

### The ______________ is used to scribe arcs, circles and step-off distances on a work piece.

• A.

Dot punch

• B.

Scriber

• C.

Centre punch

• D.

Divider

D. Divider
Explanation
A divider is a tool that is used to scribe arcs, circles, and step-off distances on a workpiece. It consists of two pointed legs connected by a hinge, allowing the distance between the points to be adjusted. By placing one point on a fixed position and using the other point to scribe, the divider can accurately mark out circles, arcs, and distances on the workpiece. This makes it a useful tool for layout and measurement tasks in various industries such as woodworking, metalworking, and engineering.

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• 12.

### Which chisel is used to clean out corners and pull over off-drilled centers?

• A.

Flat chisel

• B.

Diamond point

• C.

Cross cut

• D.

Half round

B. Diamond point
Explanation
A diamond point chisel is used to clean out corners and pull over off-drilled centers. The sharp and pointed tip of the diamond point chisel allows for precise and accurate work in tight spaces. It is commonly used in woodworking and metalworking to remove excess material and create clean and precise corners. The diamond point chisel's shape and design make it ideal for tasks that require precision and control.

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• 13.

### The size of a screw driver is determined by the ____________________.

• A.

Length of the shaft

• B.

Shape of the tip

• C.

Length of the handle

• D.

Shape of the shaft

A. Length of the shaft
Explanation
The size of a screwdriver is determined by the length of the shaft. The length of the shaft determines the reach and depth that the screwdriver can achieve. It is important to have the right size of screwdriver for the job to ensure proper fit and effectiveness. The shape of the tip and the length of the handle may vary for different types of screwdrivers, but the length of the shaft is the key factor in determining the size.

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• 14.

### The _______________ carries the grinding wheels and is driven by a belt connected to the motor.

• A.

Stand

• B.

Tool rest

• C.

Wheel guards

• D.

Spindle

D. Spindle
Explanation
The spindle carries the grinding wheels and is driven by a belt connected to the motor. It is responsible for rotating the grinding wheels, allowing them to perform their grinding function.

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• 15.

### Tension is given to the blade of the hacksaw using the ____________________.

• A.

• B.

Wing nut

• C.

Prongs

• D.

Handle

B. Wing nut
Explanation
The tension is given to the blade of the hacksaw using the wing nut. The wing nut is a type of nut with two large metal "wings" on its sides, allowing it to be easily tightened or loosened by hand. In the case of a hacksaw, the wing nut is used to adjust the tension of the blade, ensuring that it is securely held in place and able to cut through materials effectively. By tightening or loosening the wing nut, the user can control the amount of tension applied to the blade, making it easier to cut through different materials.

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• 16.

### The proper sequence of tapping a blind hole is ___________________________.

• A.

Bottoming, tapered, plug

• B.

Tapered, plug, bottoming

• C.

Plug, bottoming, tapered

• D.

Bottoming, plug, tapered

B. Tapered, plug, bottoming
Explanation
The proper sequence of tapping a blind hole is tapered, plug, bottoming. Tapered tap is used first to gradually cut threads into the hole, allowing for easy starting and alignment. Then, a plug tap is used to fully cut the threads to the desired depth. Finally, a bottoming tap is used to finish the threads at the bottom of the hole. This sequence ensures proper thread formation and depth in the blind hole.

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• 17.

### Which of the following is NOT an example of dies used in thread cutting?

• A.

Solid

• B.

Circular split

• C.

Plug

• D.

C. Plug
Explanation
The question asks for the option that is NOT an example of dies used in thread cutting. A plug is a type of die that is used to cut internal threads, while solid, circular split, and adjustable screw plate are all examples of dies used to cut external threads. Therefore, the correct answer is plug.

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• 18.

### The _______________ is used to layout lines at right angle to a machined edge.

• A.

Odd-leg caliper

• B.

Scriber

• C.

Try-square

• D.

Centre punch

C. Try-square
Explanation
A try-square is a tool that is used to layout lines at a right angle to a machined edge. It consists of a handle and a metal blade that is perpendicular to the handle. The blade is placed against the machined edge, and the handle is used as a guide to draw a straight line at a perfect 90-degree angle. This tool is commonly used in woodworking, metalworking, and other trades where precise measurements and angles are required.

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• 19.

### The flexible blade is usually ______________________.

• A.

Hardened throughout its length

• B.

Not hardened

• C.

Half hardened

• D.

Hardened at the teeth

D. Hardened at the teeth
Explanation
The correct answer is "hardened at the teeth." This means that only the teeth of the flexible blade are hardened, while the rest of the blade remains unhardened. This is a common practice in the manufacturing of blades, as it allows for a balance between flexibility and durability. By hardening only the teeth, the blade can maintain its flexibility while still being able to effectively cut through materials.

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• 20.

### ___________________ pliers provide extremely high gripping power because of the adjustable lever action.

• A.

Slip-joint

• B.

Needle-nose

• C.

Side cutting

• D.

Vise-grip

D. Vise-grip
Explanation
Vise-grip pliers are known for their adjustable lever action, which allows for a strong gripping power. This feature enables the pliers to securely hold onto objects, providing a high level of control and stability. Slip-joint pliers, needle-nose pliers, and side cutting pliers may have their own unique features, but they do not specifically mention the adjustable lever action that Vise-grip pliers possess. Therefore, Vise-grip is the correct answer in this context.

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• 21.

### The ______________ is the bottom surface joining the sides of two adjacent threads.

• A.

Pitch

• B.

Crest

• C.

Root

• D.

Flank

C. Root
Explanation
The root is the bottom surface joining the sides of two adjacent threads.

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• 22.

### ALL the following are work holding devices used on the drill press EXCEPT:

• A.

V-block and clamp

• B.

Drill vise

• C.

Machinist vise

• D.

Angle plate

C. Machinist vise
Explanation
The machinist vise is not a work holding device used on the drill press. V-block and clamp, drill vise, and angle plate are all commonly used work holding devices on the drill press. However, a machinist vise is typically used on a milling machine or a bench grinder, not on a drill press.

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• 23.

### A drill socket is used:

• A.

When the hole in the spindle of the drill press is too small for the shank of the drill.

• B.

To adapt the cutting tool shank to the machine spindle if the taper on the cutting tool is small.

• C.

To remove the drill from the chuck.

• D.

When removing tapered shank drills from the drill press spindle.

A. When the hole in the spindle of the drill press is too small for the shank of the drill.
Explanation
A drill socket is used when the hole in the spindle of the drill press is too small for the shank of the drill. This allows for a secure connection between the drill and the spindle, ensuring that the drill is held in place and can rotate properly during drilling operations. By using a drill socket, the user can adapt the size of the shank to fit the smaller hole in the spindle, enabling them to use the drill press effectively and safely.

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• 24.

### Most drills in the work shop are made from ____________.

• A.

Mild steel

• B.

Stainless steel

• C.

High speed steel

• D.

Low carbon steel

C. High speed steel
Explanation
High speed steel is the correct answer because it is a type of tool steel that is specifically designed for use in drills and other cutting tools. It has a high resistance to heat and wear, allowing it to maintain its hardness and cutting ability even at high speeds. This makes it ideal for drilling through tough materials such as metal. Mild steel, stainless steel, and low carbon steel are not typically used to make drills as they do not have the same level of hardness and durability as high speed steel.

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• 25.

### Phillips screw drivers usually have a star-shaped tip.

• A.

True

• B.

False

A. True
Explanation
Phillips screwdrivers typically have a star-shaped tip, also known as a cross-head or cruciform shape. This design allows the screwdriver to engage with the corresponding Phillips screws, which have a cross-shaped indentation in the head. The star-shaped tip provides better grip and reduces the chances of the screwdriver slipping out of the screw head while turning, making it easier to drive and remove Phillips screws. Therefore, the statement "Phillips screwdrivers usually have a star-shaped tip" is true.

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• 26.

### Dies are used to cut all types of threads on a work piece

• A.

True

• B.

False

B. False
Explanation
Dies are not used to cut all types of threads on a work piece. Dies are used specifically to cut external threads, while taps are used to cut internal threads. Therefore, the correct answer is False.

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• 27.

### The hacksaw should be used at 40 – 50 strokes per minute.

• A.

True

• B.

False

A. True
Explanation
The correct answer is true because using the hacksaw at 40 - 50 strokes per minute is the recommended speed for efficient and effective cutting. Operating the hacksaw at this speed allows for better control and accuracy while minimizing the risk of the blade becoming dull or breaking. Using a faster or slower speed may result in a less precise cut or damage to the saw or the material being cut.

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• 28.

### The grinding head is the top of the grinding machine housing the spindle.

• A.

True

• B.

False

A. True
Explanation
The grinding head is indeed the top part of the grinding machine that houses the spindle. It is responsible for holding and rotating the grinding wheel, which is used to remove material from a workpiece. This component plays a crucial role in the grinding process, allowing for precise and efficient grinding operations to be performed. Therefore, the statement that the grinding head is the top of the grinding machine housing the spindle is true.

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• 29.

### The dot punch usually has a point angle of 90°.

• A.

True

• B.

False

B. False
Explanation
The dot punch usually does not have a point angle of 90°. The dot punch is a tool used for marking or indenting a surface with a small dot or indentation. It typically has a rounded or pointed tip, rather than a 90° angle. Therefore, the correct answer is False.

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• 30.

### The outside caliper is used for checking inside diameters.

• A.

True

• B.

False

B. False
Explanation
The outside caliper is not used for checking inside diameters. Outside calipers are used to measure the external dimensions of an object, such as the outer diameter of a cylinder or the width of a groove. Inside calipers, on the other hand, are specifically designed to measure the internal dimensions of an object, such as the inner diameter of a hole or the distance between two parallel surfaces. Therefore, the statement is false.

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• 31.

### The pitch of a hacksaw blade is the number of teeth per inch.

• A.

True

• B.

False

A. True
Explanation
The pitch of a hacksaw blade refers to the number of teeth present on the blade per inch. This means that the higher the pitch, the more teeth there are per inch, resulting in a finer cut. Therefore, the statement "The pitch of a hacksaw blade is the number of teeth per inch" is true.

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• 32.

### All-hard blades are hardened throughout their length

• A.

True

• B.

False

A. True
Explanation
The statement suggests that all-hard blades are hardened throughout their entire length. This means that the hardening process is applied uniformly from one end of the blade to the other. Therefore, the correct answer is True, indicating that the statement is accurate.

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• 33.

### The tool rest is fixed over the wheels to protect the user from the grinding wheels

• A.

True

• B.

False

B. False
Explanation
The tool rest is not fixed over the wheels to protect the user from the grinding wheels. The tool rest is actually used to support the workpiece and provide stability during the grinding process. It is positioned slightly above the grinding wheels to allow the user to safely maneuver the workpiece while minimizing the risk of accidents or injuries. Therefore, the correct answer is False.

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• 34.

### Flexible blades are hardened throughout and are often found in the workshop.

• A.

True

• B.

False

B. False
Explanation
Flexible blades are not hardened throughout and are often found in the workshop.

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• 35.

### Cuts of files refer to the pattern their teeth.

• A.

True

• B.

False

A. True
Explanation
The statement is true because the cuts of files do indeed refer to the pattern of their teeth. Files are tools used for shaping and smoothing surfaces, and they have different types of cuts on their teeth, such as single-cut, double-cut, or rasp-cut. These different patterns determine the aggressiveness and effectiveness of the file for different materials and purposes. Therefore, the statement accurately reflects the relationship between the cuts of files and the pattern of their teeth.

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• 36.

### Pillar drilling machine is a type of drilling machine often found in the workshop

• A.

True

• B.

False

A. True
Explanation
The given statement is true because a pillar drilling machine is indeed a type of drilling machine commonly found in workshops. Pillar drilling machines are stationary machines that are used for drilling holes in various materials such as wood, metal, and plastic. They are equipped with a vertical column or pillar that provides support and stability during the drilling process. These machines are commonly used in workshops and manufacturing facilities for various drilling applications. Therefore, the statement is correct.

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• 37.

### Tap drill size is the drill size that would leave adequate material in the hole for the tap to cut a thread.

• A.

True

• B.

False

A. True
Explanation
The tap drill size is indeed the drill size that ensures there is enough material in the hole for the tap to create a thread. This is important because if the hole is too small, the tap may not be able to properly cut the thread, resulting in a weak or ineffective connection. On the other hand, if the hole is too large, there may not be enough material for the tap to grip onto, again leading to a poor thread. Therefore, it is crucial to use the correct tap drill size to achieve a successful threaded hole.

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• 38.

### The combination set consists of a steel rule, square head, and a centre head.

• A.

True

• B.

False

A. True
Explanation
The combination set typically includes a steel rule, square head, and center head. This statement is true because these tools are commonly found together in a combination set. The steel rule is used for measuring, the square head is used for marking and checking right angles, and the center head is used for finding the center of round objects.

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• 39.

### The pitch of a thread is measured perpendicular to the axes of the thread.

• A.

True

• B.

False

B. False
Explanation
The pitch of a thread is not measured perpendicular to the axes of the thread. Instead, it is measured along the axes of the thread. This is because the pitch refers to the distance between corresponding points on adjacent threads, and measuring it perpendicular to the axes would not accurately represent this distance. Therefore, the correct answer is False.

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• 40.

### Drilling is the process of creating a hole in a work piece using a drill.

• A.

True

• B.

False

A. True
Explanation
The given statement is true. Drilling refers to the process of using a drill to create a hole in a workpiece. This is a common method used in various industries such as construction, manufacturing, and woodworking. Drills come in different sizes and types depending on the specific application. The drilling process involves rotating the drill bit and applying downward pressure to cut through the material and create a hole.

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• 41.

### Phillips screw drivers are also known as standard screw drivers.

• A.

True

• B.

False

B. False
Explanation
The statement is false because Phillips screwdrivers are not known as standard screwdrivers. Phillips screwdrivers have a specific design with a cross-shaped tip that is designed to fit into Phillips screws, while standard screwdrivers have a flat tip that is used for a wide range of screw types.

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• 42.

### The crest of a thread is the top surface joining the sides of a thread.

• A.

True

• B.

False

A. True
Explanation
The crest of a thread refers to the highest point or the top surface that connects the sides of the thread. This means that the crest is the part of the thread that is visible and can be felt when running a finger along the thread. Therefore, the statement that the crest of a thread is the top surface joining the sides of a thread is true.

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• 43.

### Solid dies are used for chasing or re-cutting threads that are damage.

• A.

True

• B.

False

A. True
Explanation
Solid dies are used for chasing or re-cutting threads that are damaged. This means that when a thread on a bolt or nut is damaged or worn out, a solid die can be used to repair or recut the thread. Solid dies are typically made of hardened steel and have cutting edges that match the thread pitch and diameter. They are designed to be used with a die handle or wrench to manually turn and cut the thread. Therefore, the statement "Solid dies are used for chasing or re-cutting threads that are damaged" is true.

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• 44.

### Taps are used to cut internal threads on a work piece.

• A.

True

• B.

False

A. True
Explanation
Taps are indeed used to cut internal threads on a workpiece. They are tools with sharp cutting edges that are used to create threads inside a hole or opening. By rotating the tap into the workpiece, it cuts grooves that form the internal threads. This process is commonly used in industries such as manufacturing and engineering, where threaded holes are necessary for various applications. Therefore, the statement "Taps are used to cut internal threads on a workpiece" is true.

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• 45.

### Calculate the correct drill size to be used to drill a hole for a ½ in. – 13 UNC thread.

11/26 inc.
.43 inc.
0.43 inc.
0.43
11/26
Explanation
The answer options provided are all measurements that could potentially represent the correct drill size to be used for drilling a hole for a ½ in. - 13 UNC thread. The measurements include 11/26 inc., .43 inc., 0.43 inc., 0.43, and 11/26. Without further information or context, it is not possible to determine which measurement is the correct one.

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• 46.

### Calculate the correct drill size to be used to drill a hole for an M 42 x 4.5 mm thread.

37.5 mm
37.5
Explanation
The correct drill size for drilling a hole for an M 42 x 4.5 mm thread is 37.5 mm. This means that a drill bit with a diameter of 37.5 mm should be used to create the hole for the thread.

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• 47.

### The part labelled 1 on the drilling machine shown in Figure 1 is called _______________.

Belt cover
Explanation
The part labelled 1 on the drilling machine shown in Figure 1 is called the belt cover.

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• 48.

### The part labelled 2 on the drilling machine shown in Figure 1 is called _______________.

Depth Stop
Explanation
The part labelled 2 on the drilling machine shown in Figure 1 is called the depth stop. The depth stop is a mechanism that allows the user to set the drilling depth to a specific measurement. It helps ensure that the holes drilled are consistent in depth, which is important for precision and accuracy in various drilling applications. The depth stop can be adjusted and locked in place, preventing the drill bit from going deeper than the desired depth.

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• 49.

### The part labelled 3 on the drilling machine shown in Figure 1 is called _______________.

Hand feed lever
Feed lever
Explanation
The part labelled 3 on the drilling machine shown in Figure 1 is called the hand feed lever or feed lever. This lever is used to control the movement of the drilling machine's spindle, allowing the operator to manually feed the drill bit into the material being drilled. It provides a means of adjusting the drilling speed and depth, giving the operator more control over the drilling process.

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• 50.

### E part labelled 4 on the drilling machine shown in Figure 1 is called _______________.

Drill chuck
Chuck
Explanation
The part labelled 4 on the drilling machine is called a drill chuck or simply a chuck. A drill chuck is a device that holds the drill bit securely in place, allowing it to rotate and drill into the desired material. It is an essential component of a drilling machine as it provides the necessary grip and stability for the drill bit to perform its function effectively.

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