METALS MCQ 2- ITI Fitter Theory
1) As compare to ferrous metal, non-ferrous metal is ……………
High cost & not rusted
Low cost & rusted
It is too hard
Easy available
Correct Answer- (A)
2) The main mechanical property of aluminium is ……………
Strong
Soft
Tough
Brittle
Correct Answer- (B)
3) The melting point of aluminium is …………
1452 °C
1615 °C
658 °C
1083 °C
Correct Answer- (C)
4) Which metal can be joined by soldering and brazing more easily than aluminium?
Chromium
Silver
Copper
Zinc
Correct Answer- (C)
5) Monel Metal has ……..
60% Copper 38% Nickel
60% Nickel 38% Copper
6% Nickel 4% Copper
6% Copper 4% Nickel
Correct Answer- (B)
6) 95% Metal available in Duralumin and Hindalium is ………………….
Copper
Zinc
Lead
Aluminium
Correct Answer- (D)
7) Induction coil is made from ……… material
Mild steel
Copper
Silver
Tin
Correct Answer- (B)
8) …………… material is used as sheathing material for avoid rust of Telephone and electrical underground wires.
Lead
Copper
Tin
Nickel
Correct Answer- (A)
9) Which among is the lightest metal
Copper
Lead
Aluminium
Tin
Correct Answer- (C)
10) The main mechanical property of aluminium is ………………
Strong
Brittle
Soft
Tough
Correct Answer- (C)
11) Aluminium is base of …………………… ore.
Zinc alloy
Boxide
Copper pirate
Iron ore
Correct Answer- (B)
12) ……………………… is the most important non-metal used for electrical equipment because it is electric resistance substance.
Rubber
Cement
Plastic
Wood
Correct Answer- (C)
13) The brass which is used in engineering work alloy 60% ………………& 40% ………………………
Tin & zinc
Copper & tin
Copper & zinc
Tin & lead
Correct Answer- (C)
14) ……………………… metal alloying with steel make hard and rust proof its melting point is 1615°C.
Silver
Copper
Chromium
Nickel
Correct Answer- (C)
15) Which alloying metal improves the toughness of steel and is used to manufacture gears and tools?
Cobalt
Molybdenum
Vanadium
Cadmium
Correct Answer- (C)
16) Precision instruments are made of invar steel because it is/has
Wear resistant
Shock resistance
Corrosion resistant
Least coefficient of expansion
Correct Answer- (D)
18) What is the percentage of silicon in cast iron to promote machineability
6%
2.5%
10%
8%
Correct Answer- (B)
19) Major constituent of muntz metal is ……….
Aluminium
Nickel
Zinc
Copper
Correct Answer- (C)
20) Which term is given to a material that is a mixture of two or more metals or elements?
Ductile
Ferrous
Alloy
Blend
Correct Answer- (C)
