A. A₁ is more alkaline than solution A₂
B. A₁ is highly acidic
C. A₂ is very slightly acidic
D. Both B & C
✅ The correct answer is option D.
Engineering MCQs
Maximum permissible air velocity in pipelines is about __________ metre/second.
A. 5
B. 10
C. 20
D. 40
✅ The correct answer is option B.
Ultimate strength in tension as compared to that in shear for steel is
A. Half
B. One third
C. One and half times
D. One fourth
✅ The correct answer is option C.
Globular form of cementite is formed during the __________ process.
A. Spherodising
B. Hardening
C. Annealing
D. Normalising
✅ The correct answer is option B.
The most detrimental impurity in high pressure boiler feed water is
A. Suspended salt
B. Dissolved salt
C. Silica
D. Turbidity
✅ The correct answer is option C.
The product out from a cupola is called
A. Wrought iron
B. Pig iron
C. Cast iron
D. None of these
✅ The correct answer is option C.
Superheating of steam is done at constant
A. Enthalpy
B. Entropy
C. Pressure
D. Volume
✅ The correct answer is option C.
Suitability of steel for its use in cable is judged by its strength in
A. Tension
B. Compression
C. Torsion
D. Shear
✅ The correct answer is option A.
Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs?
A. Enthalpy
B. Relative humidity
C. Wet bulb temperature
D. Dew point temperature
✅ The correct answer is option D.
The phenomenon of strain-ageing is generally experienced with
A. Cast iron
B. Low carbon steel
C. High manganese steel
D. High carbon steel
✅ The correct answer is option B.