Description : List properties desirable for spring material
Last Answer : 1)High Resilience 2) High ductile 3)High static strength 4) High fatigue strength 5) Non corrosive
Description : Give applications of gear drive.
Last Answer : 1) Gear box of vehicle 2)Machine tool 3)Gear mechanism of wrist watch 4) Dial Indicator 5) Cement mixing unit 4) Diff. Mechanism of automobiles
Description : List applications of knuckle joints
Last Answer : 1) Link of bicycle chain, 2) Tie bar of roof truss, 3) Link of suspension bridge 4)Valve mechanism, 5) Fulcrum of lever, 6) Joint for rail shifting mechanism
Description : State the steps involved in selection of proper ball bearing from manufacturer’s catalogue.
Last Answer : 1) Calculate radial and axial forces and determine dia. of shaft. 2) Select proper type of bearing. 3) Start with extra light series for given diagram go by trial of error method 4) Find ... . dynamic capacity, IF it not select the bearing of next series and repeat procedure from step-4
Description : Explain importance of shape and size in aesthetic design.
Last Answer : The aesthetic characteristics is a very important for all design elements. The aesthetics is the property to have good performance along with the better appearance for the satisfaction of the ... to get the better appearance and performance which extent its contributions from product to product.
Description : Define stress concentration. Explain any four methods to reduce it with neat sketch.
Last Answer : ) The Standard cross section for a flat key, which is fitted on a 50mm diameter shaft, is 16×10mm. The key is transmitting 475 Nm torque from the shaft to the hub. The key is made of commercial steel (Syt=Syc=230 N/mm2). Determine the length of the key, if the factor of safety is 3.
Description : Write the meaning of following material designation.
Last Answer : 1)40C8 : Plain carbon steel carbon 0.4% of average, manganese 0.8% 2)SG 700/2 : spheroidal Graphite cast iron with Min UTS 700N/mm2 and elongation 0.2 % 3)Fe E200 : Steel with yield strength of 200N/mm2 4)X10Cr18Ni9 : high alloy steel carbon 0.10% of average, chromium 18%, Nickel 9%
Description : Classify springs
Last Answer : 1) Helical springs: Compression helical spring, Tension helical spring 2) Conical and volute springs 3) Torsion springs 4) Laminated or leaf springs 5)Disc or Belleville springs 6) Special purpose springs
Description : List application of power screw.
Last Answer : 1) Machine Vice 2) power press 3) Universal testing machine 4) C clamps etc. OR 1)To raise the load 2) To clamp the work-piece 3) to load specimen 4)to obtain accurate motion
Description : Name types of keys
Last Answer : 1) Sunk keys 2) Gibb-head key 3)Feather key 4)Woodruff key 5)Saddle keys 6)Tangent keys 7)Round keys 8) Splines Key
Description : Define factor of safety for ductile and brittle material.
Last Answer : Factor of safety for ductile material: It is defined as ratio of yield stress to the working stress or Factor of safety for Brittle material : It is defined as ratio of ultimate stress to the working stress /permissible /design stress or
Description : To publish a REST service with Spring. a) publishing an application’s data as a REST service b) accessing data from third-party REST services c) none of the mentioned d) all of the mentioned
Last Answer : all of the mentioned