Interview Q & A (Part-1)

1. Materials having lowest cutting speed is a. Cast iron b. Bronze c. Aluminum d. High carbon steel Answer: d. High carbon steel 2. When material is ductile and cutting speed is high, then a. Continuous chips are formed b. Continuous chips with built up edges are formed c. Discontinues chips are formed d. None of these Answer: a. Continuous chips are formed 3. In metal cutting at speed above 20 RPM, maximum heat is carried by a. Work b. Tool c. Chip d. Equally by all of these Answer: c. Chip 4. Surface finish is most affected by a. Cutting speed b. Depth of cut c. Feed rate d. Lubricant Answer: c. Feed rate 5. In cutting operation, the largest force is a. Axial or Longitudinal force b. Tangential force c. Radial force d. Force along shear plane Answer: b. Tangential force 6. If the feed is stopped and the cutter continues to rotate in the metal, the cutter will a. Cut micro size chip b. Create heat c. Vibrate Answer: b. Create heat 7. Theoretically, a four stroke cycle engine should develop __________ power as that of a two stroke cycle engine. a.half b.same. c.double d.four times Answer: d.four times 8. light weight substances can not be effective moderators.  a.True  b. False Answer: b. False 9. A two stroke cycle engine gives __________ mechanical efficiency than a four stroke cycle engine. a.higher b.lower Answer: a.higher 10. Lubrication in I.C. engines dissipates the heat generated from the moving parts due to friction. a.True b. False Answer: a.True