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Tin-Smithy viva questions and answers page 2

Q: What are some essential tools used in tin smithing? A: Some essential tools used in tin smithing include tin snips, hammers, mallets, soldering irons, soldering flux, soldering paste, tinsnips, stakes, anvils, shears, and bench vices. Q: Can you explain the purpose of tin snips in tin smithing? A: Tin snips are used in tin smithing to cut and shape tin sheets. They have specially designed blades that are capable of making clean and precise cuts in the metal. Q: What is the role of hammers in tin smithing? A: Hammers are used in tin smithing for various purposes, such as shaping, forming, and planishing tin. Different types of hammers, such as ball peen hammers, cross-peen hammers, and planishing hammers, are used to achieve specific effects and textures on the tin surface. Q: What is the function of a soldering iron in tin smithing? A: A soldering iron is used in tin smithing to heat and melt solder, which is then used to join pieces of tin together. It provides the necessary heat ...
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Welding VIVA question and answers

VIVA QUESTIONS : Q1: Define welding? Ans:  Welding is a fabrication process that joins two or more materials, typically metals or thermoplastics, by melting and fusing them together using heat or pressure. Q2: What is the typical thickness of MS Plate used in general welding workshop experiments? Ans:  The thickness of the MS (Mild Steel) plate used in general welding workshop experiments can vary depending on the specific requirements of the experiment. However, commonly used thicknesses range from 3 mm to 12 mm. Q3: What is the common job material used in welding experiments? Ans:  The common job material used in welding experiments is mild steel. It is widely available, affordable, and relatively easy to work with, making it suitable for various welding applications and practice. Q4: What is the main function of an electrode in welding? Ans:  The main function of an electrode in welding is to carry the electric current necessary for the welding process and to ...
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Carpentry Viva Questions

Q1: Define carpentry? Ans:  Carpentry is a skilled trade that involves working with wood to construct, install, and repair structures and objects. It encompasses various tasks such as measuring, cutting, shaping, joining, and finishing wood to create functional and aesthetically pleasing products. Q2: What are the various types of wood material used in carpentry? Ans:  The various types of wood materials used in carpentry include softwoods (such as pine, fir, cedar, and spruce) and hardwoods (such as oak, maple, mahogany, and walnut). Other wood materials used in carpentry can include plywood, particleboard, MDF (medium-density fiberboard), and engineered wood products like laminated veneer lumber (LVL) and oriented strand board (OSB). Q3: What is the sequence of operations in carpentry? Ans:  The sequence of operations in carpentry typically involves planning and design, material selection and preparation, measuring and marking, cutting and shaping, joinery or fasteni...
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Isometric drawings for practice in AutoCAD

What is Isometric Drawing? Isometric drawing is a method of visually representing three-dimensional objects in two dimensions. It allows for a clear and comprehensive depiction of complex structures by keeping the scale consistent and eliminating distortion. Isometric drawings use a 30-degree angle from the horizontal in all three axes (X, Y, and Z), creating a pseudo-3D effect where the height, width, and depth are equally foreshortened. Creating Isometric Drawings in AutoCAD AutoCAD provides tools and settings that make creating isometric drawings straightforward. Here’s a step-by-step guide: Step 1: Set Up Isometric Snap/Grid 1. Enable Isometric Snap/Grid:    - Type `SNAP` in the command line and press `Enter`.    - Type `Style` and press `Enter`.    - Choose `Isometric` and press `Enter`. 2. Switch Between Isoplanes:    - Type `F5` or `CTRL+E` to toggle between the top, right, and left isoplanes. Step 2: Draw Isometric Circles and Arcs 1. Isom...
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The Motion-Balance System used in Pneumatic Instruments

The motion - balance system is used in pneumatic instruments to produce a proportional output of 3 - 15 psi when a corresponding input signal is applied to the instrument. A typical motion-balance system in a pneumatic instrument is shown below: The above diagram shows a motion-balance system in which the input motion is applied to point P on the lever PQ. The opposite end (Q) of this lever is pivoted to a second lever QRS which in turn has point S pivoted in a lever positioned by movement of the feedback bellows. At the center (R) of the lever QS there is a stem on which one end of the lever RTU is supported while it is pivoted at point U and has a flapper nozzle sensor located at point T. A horizontal displacement which causes P to move to the left is transmitted via Q to R, and as a result the flapper at T moves off the nozzle so that the back pressure falls. This change is amplified by the pneumatic relay so that the pressure in the feedback bellows falls and the lever carrying t...
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SINGLE ‘V’ BUTT JOINT

Experiment No.:                                                                                      Date: SINGLE ‘V’ BUTT JOINT Aim: To prepare a single ‘V’ Butt Joint as per dimensions given in the sketch. Material Required: Mild Steel plates: 80mm X 40mm X 6mm = 2 Nos Mild Steel electrode ¢ 3.15 mm Equipment required: A.C. Transformer with all welding accessories like Electrode holder, cables. Tool Required: Steel rule 300mm  Scriber 150mm Flat file 300mm Try square 200mm Flat Tong 450mm  Chipping hammer 200mm Ball peen hammer 750mm  Wire brush Welding screen Sequence of Operations: 1. Marking  2. Filing  3. Welding  4. Finishing Procedure: Take two Mild steel plates of size 80mm X 40mm X 6mm. Fix the wor...
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sheet metal rectangular tray making

Aim :- To make a rectangular tray from a given metallic sheet. Tools Required MALLET Snip Stake STEEL RULE Ball peen HAMMER Straight EDGE RIVETS Scriber Procedure The given metal sheet is smoothed using mallet. The measurements of rectangular tray (tray development drawing) is drawn on the sheet with given dimensions using the scriber and steel rule. The sheet is cut as per the marked dimensions by straight snips. Fold or bend as per the given order using mallet and stake. Bending is done as per the given dimension using the stake and mallet. Rivet the folded sheet by using the given rivets and hammer. Safety Precautions Each cut you make exposes sharp edges and creates burrs that can slice a finger. Must Use Hand gloves when cutting the sheet. Metal waste also has hazardous edges. So...
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FACING, PLAIN TURNING AND STEP TURNING

Ex. No :                                                                                                          Date : FACING, PLAIN TURNING AND STEP TURNING Aim                       To perform turning, facing and chamfering on a cylindrical work piece. Material used                       Mild steel cylindrical rod. Tools required Lathe Three-jaw chuck Chuck key Vernier caliper Single-point cutting tool Procedure First loosen the jaw in the chuck key to position the work piece, and then tighten the  jaws. Fix the cutting tool in the toolpost. Switch on the lath...
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FEA on Tension bracket using Solidworks

Finite Element analysis on tension bracket using solidworks 1. Create the solidworks 3D model using part modeling tool of solidworks. 2. Now start simulation tab. Then assign material to the component and assign fixed constrain on back side surface of the tension bracket.  Then assign Force to the circular cut vertically. the Stress plot is shown above  The displacement plot show above. The Factor of safety plot shown above. The Tension bracket component in 3D dimension isometric view along with dimensions.
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sheet metal 2

Straight snip:- For cutting along straight line, straight snip is used whose blades are straight. It is used to cut 22 S.W.G or lighter. To cut sheets of greater thickness lever shearing m/c is used. Hollow punch:- When circular holes are to be cut in the sheet then hollow punch is used for thin sheets. The sheet should be placed over the wood or thick block of lead to avoid chipping of edges of the punch. Chisels:- These are generally used in sheet metal shop for cutting sheets, rivets and bolts. Taper stake:- It is used for rounding of tapering jobs such as conical jobs. Hose stake:- There are two square holes for holding two stakes at a time for carrying out different operations. Half Round Stake:- It is used for pressing round seam joint on inner side. Grooving stake:- It is made up of forged steel and is used to make grooves of different sizes. Grooves are made to impart strength. Soldering iron:- Soldering iron is composed of a heated metal tip and an insulated handle. Heat...
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