Chemical Engineering MCQs [Quiz 29]

Q1. The dimensional formula of bulk modulus of elasticity is same as that of the
(A) Pressure
(B) Density
(C) Force
(D) None of these

Q2. Fahrenheit and Centigrade scales have the same readings at
(A) -55°
(B) -40°
(C) -33°
(D) -58°

Q3. A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material?
(A) Steel
(B) Glass
(C) Rubber
(D) Brass

Q4. For separating small pieces of metal from engine oil of a car, the best separating technique is the
(A) Chromatography
(B) Evaporation
(C) Filtration
(D) Fractional distillation

Q5. The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the plate is increased four times, then the rivet diameter will have to be increased __________
times.
(A) Two
(B) Four
(C) Six
(D) Eight

Q6. In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which of the following is a cermet?
(A) Zirconia
(B) Alumina
(C) Bakelite
(D) Tungsten carbide

Q7. Machinability of hard alloys and tool steels is improved by
(A) Spheroidising
(B) Annealing
(C) Tempering
(D) Normalising

Q8. In TIG welding, thoriated tungsten electrodes are used, because it
(A) Has higher current carrying capacity
(B) Has better electron emissivity
(C) Is stronger than ordinary tungsten
(D) Is easy to prepare

Q9. Runge-Kutta method is used to solve a/an
(A) Ordinary differential equation of nth order
(B) Simultaneous non-linear equation
(C) Linear differential equation
(D) None of these

Q10. Which of the following fastening devices has a head at one end and a nut fitted to the other?
(A) Bolt
(B) Stud
(C) Top bolt
(D) None of these

Updated: 30th July 2019 — 8:25 PM

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