Chemical Engineering MCQs

6108 MCQs  (Page 55 of 611)

Attempt Chemical Engineering Quiz
The following thermocouple may be used for measuring temperature upto 1873°K__________________?
A. chromel-alumel
B. copper-constantan
C. platinum-platinum rhodium
D. iron-constantan
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Projection welding & stud welding is categorised as the _______________ welding?
A. Pressure
B. Thermit
C. Resistance
D. Arc
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Isotropic materials have the same _______________________ in all directions?
A. Induced stresses
B. Density
C. Elastic properties
D. Thermal properties
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Main constituent of bone ash is____________________?
A. Ammonium phosphate
B. Calcium phosphate
C. Animal charcoal
D. Ammonium sulphate
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Which of the following mainly decides the current to be employed is arc welding ?
A. Electrode size
B. Plate thickness
C. Voltage across the arc
D. Welded portion length
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Half life of a radioactive isotope corresponds to the time required for half of the _______________ to decay ?
A. Atoms
B. Neutrons
C. Nucleons
D. Electrons
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Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as______________________?
A. Re0.5, re0.8
B. Re0.8, re-0.5
C. Re0.8, re0.5
D. Re-0.8, re0.5
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What is the pH of distilled water ?
A. 0
B. 1
C. 7
D. 14
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Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be ______________ mm?
A. 10
B. 20
C. 30
D. 40
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Hot extrusion of aluminium is done in the temperature range of ________________ °C ?
A. 550-600
B. 450-500
C. 350-400
D. 250-300
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Word of the Day
24 Jul
Untenable
(especially of a position or view) not able to be maintained or defended against attack or objection.
ناقابل مدافعت، غیر مستحکم، جو دلیل سے ثابت نہ ہو سکے

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