What is the tap drill for a ½-20 UNF-2B thread?

Q: What two types of shanks are commonly found on twist drills?

A: The shank portion of the twist drill is used to hold the twist drill in the chuck. The drills' shank…

Q: What does 2A represent for 3/8-16 UNC-2A thread a) Outside Diameter of Screw b) 16 Threads per inch…

A:

Q: Describe the Hooke'sLaw?

A: According to Hooke’s law, in the direct loading, stress is directly equivalent to strain within the…

Q: Through hole of 12 mm diameter is to be drilled in a steel plate of 20 mm thickness, drilled spindle…

A: Given: The diameter of hole is d=12 mm. The thickness of steel plate is t=20 mm. The drilled…

Q: 34. The operation of removing material from the end face of a round shaft is .ROwww Select one:…

A: Facing is the process of removing metal from the end of a workpiece to produce a flat surface

Q: Through hole of 12 mm diameter is to be drilled in a steel plate of 20 mm thickness, drilled spindle…

A: We know that linear velocity and rpm are related by : πDN = v ⇒N=vπD = 20π x 0.012 =530.5165 rpm

Q: A tool used for making internal threads in G. I. pipes   Pipe Reamer Pipe Vise Pipe Extractor…

A: Galvanized pipe is steel pipe with a zinc coating that prevents the steel from corroding. It's…

Q: Give the true thread from the following, the reasons for the false. representation of screw and mark

A: Given Screw thread To find Determination of the proper screw thread representation   Screw thread…

Q: 11. The twist drill is divided into .. main parts Select one: a.4 b.1 C.3 d.2

A: twist drill has three principles parts: the point, the body and the shank

Q: What are the basic differences between the dividing heads?

A: Given question: What are the basic differences between the dividing heads? The given question is…

Q: What is Valve Guide Knurling?

A: Knurling is a process of manufacturing which is generally conducted in a lathe where a pattern of…

Q: Identify the nose radius(in mm) from the following single point tool signature 2-3-5-8-12-15-1. O 1…

A:

Q: v thread is:

A: In screw largest diameter is its major diameter

Q: Question 17? Approximately how many threads are specified for the bolt?

A:

Q: What are two reasons for center drilling on the lathe?

A: Drilling is the method used to create holes in the workpiece. On a lathe, the center drilling…

Q: just to clarifay is the shaft stainless steel? or the tool making the threads on the shaft

A: It is the shaft which is made up of stainless steel.

Q: What precautions should be taken if a hammer is used to shift a part into alignment?

A: Welding is a metal joining process in which two or more parts joined together. Misalignment in the…

Q: Write the thread notes for the following internal threads. Do only (b), (e) and (g). Also, what are…

A: Given data,   a b c d e f g Majorϕ 716 14 58 114 38 12 1 Series fine coarse fine coarse  fine…

Q: 7. Calculate the internal size of bore to be drilled on a workpiece before cutting a ½ inch internal…

A: Given data as per the question Internal thread =0.5 in LetD−Hole diameterTPI−thread per…

Q: 5. Lathe bed is usually made of: a) Structural steel. b) Stainless steel. c) Cast iron. d) Mild…

A:

Q: Why it is important to loosen one screw before tightening the opposing one by an equal amount?

A: If there are two sequences of screws or bolts and n number of screws is to be tightened on each…

Q: What's the correct answrs for this please ?

A: Given that two cars start racing on a straight road at the same time. The position of the car with…

Q: What size of hole should be bored before cutting a 7/8 in. internal thread having 9 TPI and 12 mm.…

A: Given data as per the question Internal thread =7/8 in TPI =9 Number of pitch =1.75

Q: How will you perform threading operation using tap and die set, compare it to the lathe machine…

A: Threading is a process of creating screw threads. It can be performed in a variety of manners. Tap…

Q: Define the drill press center pulley bearing replacement.

A: solution of above problem is below:

Q: Name the operation which is enlarges the top portion of drilled hole with tapered shape? a. Step…

A: The process of creating a V-shaped tapered edge near the surface of a hole is known as…

Q: hat material makes the best drill bit?

A: Drill bits are used in drills to make a hole in the materials. So it should be harder than the…

Q: Identify the side relief angle (in degrees) from the following single point tool signature 1-…

A:

Q: What is the mechanical advantage of a 1/4" diameter screw with 20 threads per inch?

A: Calculating the mechanical advantage of a 1/4" diameter screw with 20 threads per inch.

Q: (a) Find Depth of cut and Root diameter for M18 x 2.75 x 30 internal thread.

A: Given:- M18 x 2.75 x 30   To find:- Depth of cut Root diameter

Q: Drill bit is fixed in the tailstock of a lathe during the drilling operation. Select one: True False

A: Solution:

Q: What is the lead of a double cut thread when the pitch is 2.5 mm?

A: Given Data⇒ Double cut thread Pitch(P)=2.5 mm Problem statement⇒ Problem says What is the lead of a…

Q: diameter? 9. How deep is the counterbore? 1. Approximately how long is the tapped hole? . What does…

A: 10. Approximately how long is the tapped hole

Q: What is the TPI of a ½-20 thread?

A: TPI stands for Threads Per Inch. It is the count of the number of threads present per inch along the…

Q: Identify the nose radius(in mm) from the following single point tool signature 2-3-5-8-12-15-1. O 1…

A: The single point cutting tool signature is as mentioned below (i) Back rake angle(ii) Side rake…

Q: What tolerance class is specified for the thread? h class?

A: Let us discuss above engineering drawing for tolerance class.

Q: Explain the major diameter of a thread.

A: A thread can be defined as the ridge which is wrapped around the cylinder. The wrapping can be in…

Q: Identify the side rake angle (in degrees), from the following single point tool signature…

A: The tool signature of a single point cutting tool is mentioned below (i) Back rake angle(ii) Side…

Q: Identify the drilling operation in which the top portion of a hole is enlarged to accommodate the…

A:

Q: What is the major diameter of the thread? 16mm?

A:

Q: What does the identifier for a unified thread indicate as a minimum?

A: The unified thread standard (UTS) is defined for standard thread form and its series. it tells about…

Q: Q2) List two examples of misuse defects in screw threads?

A: A screw thread is a helical structure that converts rotational movement to linear movement or…

Q: Given the following thread specification: ½ - 28 UNEF – 2A 1) What is the pitch? __________ 2) How…

A: Given Data: Thread specification,  ½ - 28 UNEF – 2A

Q: What is the pitch of a M10 x 1.25 thread?

A: A typical metric bolt is expressed by the letter M which is then followed by the diameter of the…

Metrology of Screw Threads

Screw threads are a series of ridges having the profile of a helix. This helix profile runs continuously along the length of a uniform solid or a hollow bar of a circular cross-section at periodic intervals. These helix ridges are also formed over a conical bar. These continuous helical ridges are termed threads.