A. Photoelastic
B. Semiconductor
C. Wire resistance
D. None of these
✅ The correct answer is option B.
Engineering MCQs
Which is the only metal that exists in liquid state at room temperature?
A. Sodium
B. Mercury
C. Lithium
D. Strontium
✅ The correct answer is option B.
In order to protect the aquatic creatures, the dissolved oxygen content in fresh water stream should never be less than __________ PPm.
A. 0.5
B. 1
C. 5
D. 20
✅ The correct answer is option C.
Which of the following varies as the square root of oil pressure during atomisation of fuel oil through a pressure jet burner?
A. Output & fineness
B. Velocity
C. Both A & B
D. None of these
✅ The correct answer is option C.
Colour comparator is used to measure the
A. PH value
B. Electrode potential
C. Colour intensity
D. None of these
✅ The correct answer is option A.
More than 1000 tons refrigeration capacity plants are usually of __________ type.
A. Vapour compression
B. Vapour absorption
C. Air refrigeration
D. None of these
✅ The correct answer is option B.
Moist climate is the most favourable factor in the site selection far a
A. Steel plant
B. Textile factory
C. Petroleum refinery
D. Coke oven battery
✅ The correct answer is option B.
The activity co-efficient of the solute in a dilute solution
A. Decreases with the increase of concentration of the solute
B. Increases with the increase of concentration of the solute
C. Remains constant
D. Is unity at infinite dilution
✅ The correct answer is option C.
Titanium can be easily welded using __________ welding.
A. Submerged arc
B. TIG
C. Shielded metal arc
D. Electroslag
✅ The correct answer is option B.
The joint for soldering is supported by binding wire made of
A. Mild steel
B. Copper
C. Soft iron
D. Stainless steel
✅ The correct answer is option C.