What is the effective length factor?

Q: What is the NRC for the material?

A: NRC stands for noise reduction coefficient and is the standard rating for how well a material…

Q: What happens when the principal stresses act on the element?

A: In this problem, a shaft with moment and torque applied at the free end and one is fixed. And, here…

Q: What is section modulus?

A: The section modulus helps to calculate the outermost stress in the beam section. It is numerically…

Q: Which of the following material has minimum Indentation diameter? Select one: Mildsteel Aluminium…

A: As we know that,  Brinell hardness no. (BHN)∝ 1Indentation area (or Indentation dia.)

Q: What are the Load factors and what do they include?

A: Load factor: In general, the load factor is defined as the ratio of all the forces (weight of…

Q: 1. hot-rolled bars of AISI 1020 and 1040 steel 2. stainless steel sheets of Type 430 ferritic…

A: Solution:: Ans-1  The separation of metal parts occurs according to two different processes: ferrous…

Q: 1-what is the best pipe insulation? 2-Does pipe insulation really work? 3-what are the different…

A: Given questions: 1. What is the best pipe insulation 2. Does pipe insulation really work 3. What are…

Q: What minimum diameter is required for the wire?

A: Given data: -  The length of the steel wire is L = 1.95 m. The permissible elongation is δ = 0.270…

Q: This weldment is subject to an applied force F=12 kip, weld size h=1/4 in, and the weld is made with…

A: Welding is a fabrication process in which two or more than two parts are fused together using heat…

Q: What must be the thickness of a plate 350mm-wide to withstand a force of 250kN if the working stress…

A: Normal Stress = Force/ Area normal to the force. here, stress= 150 Mpa Force = 250 KN = 250000N Area…

Q: Which of the following are the assumptions in designing boiler joints? I. Crushing stress varies…

A: Write the assumptions used in the designing of the Boiler joints: The load is equally distributed…

Q: Low thermal conductivity coatings on turbine blades protect the blades from hot gas by:

A: This question is based on the concept of coatings on turbine blade.

Q: 1) A single parallel fillet weld of total length L and weld size h subjected to a tensile load P,…

A:

Q: What is Distortion energy?

A: Distortion in a body is caused when there are shear stress present on the body. Due to these shear…

Q: What are conservative forces?

A: Conservative force: When the work done by the force on a body does not depend on the path of the…

Q: Aluminum strips of 2 mm thickness are joined together by resistance spot welding process by applying…

A: Given:Electric current, I=6000 Atime, t=0.15 sHeat required for melting aluminium=2.9…

Q: Part A If the radius of the fillet weld connecting the shafts is r =13.2 mm, and the allowable shear…

A:

Q: What do the Discontinuity functions express?

A: A discontinuity function expresses that at the point of discontinuity either the limit doesn’t exist…

Q: What is the impact factor?

A: Impact factor (IF) can be explained as the frequency from which the average article is cited in a…

Q: How are the modes of failure readily defined?

A: The modes of failure are prediction theories. According to these theories, the solid material fails…

Q: The welding parameters to be used to butt weld a metal alloy are being evaluated. In order to set up…

A: Write the power delivered by the welding machine.   P=4000 W   Write the heat transfer function.…

Q: Why is it better to secure the rigging higher upon the load rather than lower? Explain

A: The Rigging is used in material handling system. For moving the material from one location to…

Q: A U-groove weld is used to butt weld 2 pieces of 7.0-mm-thick titanium plate. The U- groove is…

A:

Q: Are the Expansion joints, used to mitigate thermal stress in materials?

A: Expansion joint It is a configuration developed to join the sections together while efficiently…

Q: What is the average shear stress?

A:

Q: A fillet weld is used to join 2 medium carbon steel plates each having a thickness of 5.0 mm. The…

A:

Q: Define the term Circular Cross Section?

A: A circular cross section refers to a cross-section whose periphery takes the shape of a circle. This…

Q: F(t), A 27 FIGURE 1.114 Impact force created by a forging hamm F(t) MA A 27 -A FIGURE 1.116 A…

A: in this question, no values are given , so the below mentioned values are taken for the reference

Q: What is quasistatic compression ?

A: "Quasi-static processes" are ideal reversible processes which cannot occur in practical(real…

Q: In the figures a and b which one is having a high packing factor * a) can not be determined b) fig…

A: Atomic packing factor is considered to the efficiency of a unit cell. It is defined as the fraction…

Q: 3. What is the difference between a statically indeterminate member from a statically determinate…

A:

Q: What is the work done by the force applied by the rope?

A: To find  Workdone

Q: How is the shear center determined?

A: Shear Center The shear center is a point on the section of the beam, from where the resultant load…

Q: A square steel alloy plate 400 mm on a side has a 90-mm-diameter circular hole at its center. The…

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Q: What type 0f stress is being experienced by the wires ab0ve?

A:

Q: When is edge shearing or tearing of the margin in riveted connections usually neglected ? When the…

A: Answer:

Q: What is the Endurance or Fatigue limit?

A: Given Endurance limit To find Definition

Q: Which of the following describes the phenomenon of material failure? O Unstable crack growth Flutter

A: I think its answer should be first part unstable crack growth.

Q: Differentiate between Constant Load and Cross-Sectional Area?

A: Given Constant Load Cross Sectional Area To find Difference

Q: When the safety factor is less than one, how do you go from σ_m and σ_a to determine the expected…

A: When factor of safety is less than one in a part then part such parts are known as fatigue machine.…

Q: Define the term Bending Moment and when is it caused?

A: Bending moment is the reaction induced in the ember when an external force or moment acts on it. It…

Q: Define the term shape factor?

A: The shape factor is defined as the fraction of radiant energy emitted per unit area per unit time by…

Q: - 50 mm-50 mm- 200 mm 10 mm

A:

Q: What are the various stresses induced in the wire rope?

A: Wire rope is made of metal and twisted in the form of a helix. The wire rope consists of several…

Q: Differ between Constant Load and Cross-Sectional Area?

A: Constant load otherwise called Point load (P) is a force applied at a single infinitesimal point at…

Q: During a TIG welding process, the arc current and arc voltage were 50 A and 60 V, respectively, when…

A: Given, Current in process 1 = I1 = 50 A Voltage in process 1 = V1 = 60 V Welding speed in process 1…

Q: What is the fatigue test

A: Fatigue happens when a member is subjected to repeated loading . It may be completely reversed ,…

Q: Discuss the qualitative changes of burst and collapse resistances when the casing string is become…

A: The collapse and burst resistances of a pipe alter as it is subjected to axial stress (tension…

Q: how is fatigue resistance measured

A: Fatigue resistance is determined by the method of SN curve (Fatigue life).

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.