A. greater than 7
B. less than 7
C. equal to 7
D. pH value has nothing to do with neutral solution
E. none of the above
Related Mcqs:
- Acidic solution is one which has pH value__________________?
A. greater than 7
B. less than 7
C. equal to 7
D. pH value has nothing to do with neutral solution
E. none of the above - Basic solution is one which has pH value___________________?
A. greater than 7
B. equal to 7
C. less than 7
D. pH value has nothing to do with basic solution
E. none of the above - The temperature at which ferromagnetic alpha iron transforms to paramagnetic alpha iron is _______________?
A. 770°C
B. 910°C
C. 1050°C
D. below recrystallisation temperature
E. above recrystallization temperature - Which of the following is the binding material in cemented carbides___________________?
A. cobalt
B. nickel
C. vanadium
D. iron
E. carbon - A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as_________________?
A. allotropic change
B. recrystallisation
C. heat treatment
D. precipitation
E. austempering - Melting point of iron is__________________?
A. 1539°C
B. 1601°C
C. 1489°C
D. 1712°C
E. 1131°C - A specimen of aluminium metal when observed under microscope shows __________________?
A. B.C.C. crystalline structure
B. F.C.C. crystal structure
C. H.C.P. structure
D. a complex cubic structure
E. orthorhombic crystalline structure - The alloy used for making electrical resistances and heating elements is____________________?
A. nichrome
B. invar
C. magnin
D. elinvar
E. peiminvar - Following elements have face-centred cubic structure__________________?
A. gamma iron (910° to 1400°C), Cu, Ag, Au, Al, Ni, Pb, Pt
B. Mg, Zn, Ti, Zr, Br, Cd
C. a iron (below 910°C and between 1400 to 1539°C), W
D. all of the above
E. none of the above - Delta metal is an alloy of__________________?
A. copper, zinc and iron
B. iron, nickel and copper
C. iron, lead and tin
D. iron, aluminium and magnesium
E. copper, zinc and antimony
