A. Centre of pressure
B. Centre of gravity
C. Metacentre
D. Centre of pressure
✅ The correct answer is option C.
Engineering MCQs
Specific heat of an ideal gas depends upon its
A. Molecular weight
B. Pressure
C. Temperature
D. Volume
✅ The correct answer is option C.
__________ flux is used for the extraction of metal from its self fluxing ores.
A. No
B. Acid
C. Basic
D. Neutral
✅ The correct answer is option A.
Thermoplastics are never moulded using
A. Injection moulding
B. Blow moulding
C. Extrusion
D. Compression moulding
✅ The correct answer is option D.
While the recrystallisation temperature for pure metals is 0.3 Tm, the same for alloys is equal to __________ x Tm (where, Tm Melting temperature).
A. 0.25
B. 0.45
C. 0.70
D. 0.95
✅ The correct answer is option C.
Silicon percentage in silicon steel used for electrical equipments is about
A. 1
B. 4.0
C. 8
D. 14
✅ The correct answer is option B.
Reynolds number of a fluid flowing in a circular pipe is 10000. What will be the Reynolds number when the fluid velocity is decreased by 30% & the pipe diameter is increased by 30% ?
A. 9100
B. 13000
C. 7000
D. 2550
✅ The correct answer is option A.
Lime contains about 90% CaO. Percentage CaO present in limestone is about
A. 25
B. 50
C. 70
D. 80
✅ The correct answer is option B.
Reduction reaction involves the
A. Loss of electrons
B. Increase in oxidation number
C. Gain of electrons
D. Addition of oxygen
✅ The correct answer is option C.
Unit of viscosity in CGS system is
A. Gm .cm⁻¹ sec⁻¹
B. Gm . cm² . sec⁻²
C. Gm .cm⁻², sec⁻¹
D. Gm . cm . sec⁻¹
✅ The correct answer is option A.