A. Watt/m
B. Joule/m²
C. Newton/m²
D. Joule/m
✅ The correct answer is option B.
Engineering MCQs
The noble metals
A. Are exemplified by Na, K and Li
B. Do not resist corrosion very strongly
C. Are the lowermost in the electro-chemical series of metals
D. None of these
✅ The correct answer is option C.
Temperature attained in soldering of metals is about __________ °C.
A. 150-300
B. 400-500
C. 650-800
D. 1000-1100
✅ The correct answer is option A.
The units of the rate constant for a second order reaction are
A. Sec⁻¹. mole°
B. Moles¹. sec⁻¹
C. Moles⁻¹. sec¹
D. Moles¹. sec¹
✅ The correct answer is option C.
Monazite deposits constitute an important source for the following metal.
A. Thorium
B. Titanium
C. Molybdenum
D. None of the above
✅ The correct answer is option A.
__________ is a special constituent of chlorophyll without which photosynthesis is not possible.
A. Calcium
B. Nitrogen
C. Phosphorous
D. Hydrogen
✅ The correct answer is option B.
Which of the following is a commonly used manometric liquid for low pressure range?
A. Ethyl alcohol
B. Carbon tetrachloride
C. Glycerol
D. Ethylene glycol
✅ The correct answer is option B.
Large diameter shafts are manufactured by
A. Hot rolling
B. Cold drawing
C. Casting and turning to size
D. Forging and turning to size
✅ The correct answer is option D.
Filler metal is used in __________ welding.
A. Braze
B. Electric spot
C. Projection
D. Seam
✅ The correct answer is option A.
In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are.
A. μ , α and θ all have units of m/s
B. μ , α and θ all have units of m²/s
C. α and θ have units of m²/s, while μ has unit of m/s
D. α and θ have units of m/s, while μ has unit of m²/s
✅ The correct answer is option C.