Online Quiz for Chemical Engineering - Set 04 Chemical Engg. Quiz Quiz Questions - Set 04 01. The hydraulic radius of a circular pipe of diameter 'd' flowing full is (A) d/4 (B) d/2 (C) 2d/3 (D) d/3 02. The leg of a barometric leg pump is longer than the Toricellian leg, which is about __________ metres. (A) 1 (B) 5 (C) 34 (D) 10 03. Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature. (A) Copper (B) Steel (C) Aluminium (D) Brass 04. Steel balls are manufactured by cold heading. After cold forming, they are subjected to (A) Tempering (B) Normalising (C) Stress-relieving (D) Artificial ageing 05. Surface tension is due to the __________ forces. (A) Viscous (B) Adhesive (C) Cohesive (D) Difference between adhesive & cohesive 06. Pig iron is (A) Made from cast iron (B) Made from wrought iron (C) The one, which comes out of the blast furnace (D) Free from impurities 07. For the same heat input and compression ratio, efficiency of Otto cycle is higher than that of diesel cycle, because in Otto cycle. (A) Heat rejection is lower (B) Expansion and compression are isentropic (C) Maximum temperature is higher (D) Combustion is at constant volume 08. Buoyancy force depends on the __________ the liquid. (A) Depth of immersion in (B) Displaced mass of (C) Surface tension of (D) Viscosity of 09. Usual value of the resistance suitable for a wire resistance strain gauge is __________ ohms. (A) 20 (B) 80 (C) 120 (D) 300 10. When metals are heated to high temperature, their __________ increases in general. (A) Atomic vibration (B) Creep strength (C) Yield stress and ultimate tensile strength (D) Toughness and stiffness 11. Which of the following will resist maxi-mum shock and vibration without cracking? (A) Grey cast iron (B) White cast iron (C) Malleable iron (D) Graphite 12. In __________ process, ions of salts react with water to produce acidity or alkalinity. (A) Hydration (B) Hydrolysis (C) Electrolysis (D) Dialysis 13. Which of the following is a weak acid? (A) HF (B) HCl (C) HI (D) HBr 14. The quantity of electricity required to deposit one gm equivalent of any substance is one (A) Ampere (B) Coulomb (C) Microfarad (D) Faraday 15. If the pH value of a solution of sodium chloride is 7; then what will be the pH value of the solution after its electrolysis? (A) 7 (B) Smaller than 7 (˂7) (C) Greater than 7 (˃7) (D) 0 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
