A. Powder metallurgy
B. Casting
C. Forging
D. None of these
✅ The correct answer is option C.
Engineering MCQs
Which of the following material handling equipments is not suitable for moving materials in varying paths?
A. Hand trolley
B. Belt conveyor
C. Crane
D. Truck
✅ The correct answer is option B.
Which of the following relatively employs the highest heat transfer surface area in a high pressure boiler ?
A. Airpreheater
B. Economiser
C. Steam superheater
D. Furnace water wall
✅ The correct answer is option A.
Chlorine acts as a bleaching agent only in the presence of
A. Dry air
B. Pure oxygen
C. Moisture
D. Sunlight
✅ The correct answer is option C.
Fog is an example of colloidal system of
A. Solid dispersed in gas
B. Solid dispersed in liquid
C. Liquid dispersed in gas
D. Gas dispersed in liquid
✅ The correct answer is option C.
The maximum axial compression stress during cold upsetting of a cylinderical rod of radius (r) occurs at
A. The outer edge of the rod
B. R/3 from the centre
C. R/2 from the centre
D. The centre
✅ The correct answer is option D.
Window panes of aeroplanes are normally made of
A. Perspex (PMMA)
B. Teflon (PTFE)
C. Bakelite (phenol formaldehyde)
D. Polystyrene
✅ The correct answer is option A.
Liquid nitrogen containers can be made from
A. Ferritic stainless steel
B. HSLA steel
C. Titanium
D. Austenitic stainless steel
✅ The correct answer is option B.
Powder metallurgy is used to produce
A. High precision components with complex cavities and sharp features
B. Components of large size
C. Porosity free components
D. Components of such alloys whose constituents do not form alloys readily
✅ The correct answer is option C.
For a spontaneous natural process at constant temperature and pressure, the free energy of the system always
A. Increases
B. Decreases
C. Remains constant
D. Increases to a maximum before decreasing
✅ The correct answer is option A.