Chemical Engineering Online Quiz - Set 03 Chemical Engg. Quiz Quiz Questions - Set 03 01. Fluorine is not a constituent of (A) Freon (B) Chloroform (C) Teflon (D) Fluorocarbons 02. In spite of large heat transfer co-efficients in boiling liquids, fins are used advantageously, where the entire surface is exposed to __________ boiling. (A) Film (B) Nucleate (C) Transition (D) All modes of 03. The most important consideration in value engineering is the (A) Profit maximisation (B) Customer satisfaction (C) Cost reduction (D) Process improvement 04. The single most important requirement for a turbine blade material is (A) Damping (B) Resilience (C) Creep resistaned (D) DBTT 05. Thermal expansion of solid is employed in the temperature measurement by a (A) Bimetallic thermometer (B) Thermocouple (C) Mercury thermometer (D) Resistance thermometer 06. Springback in sheet metal bending depends on the (A) Elastic limit (B) Bend radius (C) Degree of bend (D) Thickness of sheet 07. Which of the following is categorised as the plastic welding? (A) Gas welding (B) Electric arc welding (C) Forge welding (D) None of these 08. Pick out the wrong statement. If the net positive suction head (NPSH) requirement of a pump is not satisfied, then (A) It will deliver low discharge of liquid (B) Its efficiency will not be affected (C) It will not develop sufficient head to raise water (D) It will be cavitated 09. Which of the following is not a natural abrasive? (A) Silicon carbide (B) Quartz (C) Corundum (D) Emery 10. Out of the following, the materials having maximum magnetic permeability is (A) Silicon steel (Si = 4%) (B) Cast iron (C) Wrought iron (D) Mild steel 11. Out of the following, the highest emf for a given temperature is generated by the __________ thermocouple. (A) Chromel - Alumel (B) Iron - constantan (C) Platinum - platinum + rhodium (D) Copper-constantan 12. Classification of metal forming processes into hot and cold working is based on the following parameters. (A) Stacking fault energy (B) Recrystallisation temperature (C) Solidus temperature (D) Transformation temperature 13. An ingot is hot forged to a 60% reduction in cross-section area. The percentage reduction in the volume for the above process is (A) 0 (B) 60 (C) 30 (D) 20 14. Welded joint is superior to riveted joint in respect of ease of fabrication, weight and strength. Which of the following joints is the most suitable for pipes carrying fluids under high pressure and temperature? (A) Flanged joint (B) Expansion joint (C) Bell and spigot joint (D) None of these 15. Permanent set in a material is produced by subjecting it to (A) Triaxial loading (B) Fatigue loading (C) Stresses beyond the elastic limit (D) Tensile & compressive loads simultaneously Submit Test Next Quiz Tests: Set 01 Set 02 Set 03 Set 04 Set 05 Set 06 Set 07 Set 08 Set 09 Set 10 Set 11 Set 12 Set 13
