A. 7
B. < 7
C. > 7
D. 0
✅ The correct answer is option C.
Basic Chemical Engineering MCQs
Thermistors are used in __________ devices.
A. Voltage measuring
B. Temperature measuring
C. Temperature compensating
D. Both B & C
✅ The correct answer is option D.
In a titration involving weak acid and strong base, the preferred indicator is
A. Methyl orange
B. Phenolphthalein
C. Ethyl orange
D. Fehling’s solution
✅ The correct answer is option B.
Joining of thin foils is preferred to be done by
A. Gamma rays
B. X-rays
C. Microwaves
D. Gas welding
✅ The correct answer is option C.
Hot working of lead is carried out at
A. 75°C
B. 373°K
C. 150°C
D. Room temperature
✅ The correct answer is option B.
The mechanism which changes the value of manipulated variable in response to the output signal from the control unit is called the
A. Final control element
B. On-off control
C. Floating control action
D. None of these
✅ The correct answer is option A.
The most important function of a washer is to provide bearing area and washers are normally specified by their hole diameters. The diameter of washer as compared to the nut is
A. More
B. Less
C. Same
D. More but less than the diameter of bolt
✅ The correct answer is option A.
The passage between the nozzle and the __________ is called ‘sprue’ in case of injection moulding.
A. Runner
B. Cylinder
C. Mold
D. None of these
✅ The correct answer is option A.
Work done by a/an __________ process is determined by ∫p.dV.
A. Adiabatic
B. Quasi-static
C. Isothermal
D. Isentropic
✅ The correct answer is option B.
Air intake for an air compressor should be preferably taken from
A. A site, where cooling towers are located nearby
B. A site, where open coal yard in located nearby
C. An air conditioned room maintained at a temperature of 18°C
D. An outside atmosphere at 10°C
✅ The correct answer is option D.