Related Questions

একটি থলেতে 4 টি সাদা এবং 2 টি কালো বল আছে। অপর একটি থলেতে 3 টি সাদা ও 5 টি কালো বল আছে। যদি প্রত্যেক থলে হতে একটি করে বল উত্তোলন করা হয়, তবে বলদ্বয় সাদা হওয়ার সম্ভাবনা কত? (A bag contains 4 white and 2 black balls. Another bag contains 3 white and 5 black balls. If one ball is drawn from each bag, what is the probability that both balls are white?)
A 4/6
B 3/8
C 1/4
D 3/4
Perminvar alloy having constant permeability is an alloy of
A Nickel, copper and iron
B Nickel, copper and zinc
C Copper, nickel and antimony
D Iron, zinc and bismuth
The partial pressure of each constituent present in an alloy is __________ the total vapor pressure exerted by the alloy.
A Less than
B Equal to
C More than
D Either B or C; depends on the type of alloy
Constantan an alloy used in thermocouples is an alloy of
A Copper and tin
B Copper and zinc
C Copper and iron
D Copper and nickel
By increasing impurity content in the metal alloy the residual resistivity always
A Decreases
B Increases
C Remains constant
D Becomes temperature independent
A metallic alloy in which one of the constituent metal is __________ , is called an amalgam.
A Zinc
B Mercury
C Lead
D Tin
Solder metal is an alloy of
A Lead and tin
B Lead and antimony
C Copper and zinc
D Copper and tin
German silver, an alloy, does not contain the metal
A Nickel
B Zinc
C Copper
D Silver
Type metal used in printing press is an alloy of
A Lead and copper
B Lead and antimony
C Lead and bismuth
D Lead and zinc
Monel metal is an alloy of
A Nickel and copper
B Nickel and chromium
C Nickel, Chromium and iron
D Copper and chromium

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