Practice Pakistan's most useful MCQs for competitive exams

In order to be called steel, an alloy should have iron percentage greater than____________________?

• (A)  80
• (B)  70
• (C)  90
• (D)  50

Answer

Submitted By :Ali Uppal

The process of heating the cold pressed metallic powder is called ______________ in powder metallurgy?

• (A)  Precipitation
• (B)  Fusion
• (C)  Sintering
• (D)  Agglomeration

Answer

Submitted By :Ali Uppal

The carbonating tower used in Solvay process of soda ash manufacture is made of_________________?

• (A)  Cast iron
• (B)  Stainless steel
• (C)  Karbate
• (D)  Lead lined steel

Answer

Submitted By :Ali Uppal

Which of the following alloys does not contain nickel ?

• (A)  Chloro, et-2 alloy
• (B)  Monel
• (C)  Inconel
• (D)  Babbitt metal

Answer

Submitted By :Ali Uppal

Hardest material so far found is__________________?

• (A)  Diamond
• (B)  Graphite
• (C)  Carborundum
• (D)  Pumice stone

Answer

Submitted By :Ali Uppal

The heat treatment process to which castings and the steel balls produced by cold heading are subjected is____________________?

• (A)  Tempering
• (B)  Normalising
• (C)  Annealing
• (D)  None of these

Answer

Submitted By :Ali Uppal

Which of the following has the highest density and the lowest melting point ?

• (A)  Stainless steel
• (B)  Titanium
• (C)  Lead
• (D)  Aluminium

Answer

Submitted By :Ali Uppal

Which of the following is the hardest _______________?

• (A)  Cementite
• (B)  Pearlite
• (C)  Austenite
• (D)  Ferrite

Answer

Submitted By :Ali Uppal

For platinum thermocouples, lead wires are made of___________________?

• (A)  Copper & copper-nickel alloys
• (B)  Copper & iron
• (C)  Iron & nickel
• (D)  Tin & nickel

Answer

Submitted By :Ali Uppal

An ideal material of construction for the storage of 50% caustic soda solution would be___________________?

• (A)  Karbate
• (B)  High silicon cast iron
• (C)  Monel
• (D)  None of these

Answer

Submitted By :Ali Uppal