A. High pressure vessels
B. Marine structure & underground pipelines
C. Overhead fuel gas pipelines
D. Overhead water pipelines
✅ The correct answer is option B.
Engineering MCQs
__________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently.
A. Collar
B. Flanged
C. Bell and Spigot
D. Expansion
✅ The correct answer is option B.
The capacity of a material to absorb energy depends upon both its strength & stiffness. The term ‘stiffness’ of a material is the opposite of its
A. Flexibility
B. Plasticity
C. Hardness
D. Hardenability
✅ The correct answer is option A.
The emf of a Deniell cell Zn | Zn²⁺ || Cu²⁺ | Cu can be increased by
A. Decreasing the surface area of the electrodes
B. Increasing the concentration of zinc sulphate solution
C. Increasing the surface area of the electrodes
D. Increasing the concentration of copper sulphate solution
✅ The correct answer is option D.
Ganister contains maximum percentage of
A. FeO
B. SiO₂
C. MgO
D. MnO₂
✅ The correct answer is option B.
Which one of the following is incombustible ?
A. H₂
B. CCl₄
C. C₂H₂
D. S
✅ The correct answer is option B.
In connection with corrosion of metals, passivation is the process that
A. Intensifies deterioration
B. Changes the composition of the metal
C. Inhibits further deterioration
D. None of these
✅ The correct answer is option C.
Softening of hardned steel is done by its
A. Normalising
B. Tempering
C. Annealing
D. Carburising
✅ The correct answer is option A.
Hypo (sodium thiosulphate) because of its complex forming behaviour is used in photography to remove undecomposed silver bromide as a soluble complex for __________ of the picture.
A. Printing
B. Developing
C. Colour
D. Fixation
✅ The correct answer is option B.
The type of pump used for lifting large quantity of sewage is a __________ pump.
A. Gear
B. Centrifugal
C. Reciprocating
D. Plunger
✅ The correct answer is option B.