This set of Powder Metallurgy Question Bank focuses on “Products – Porous Bearings and Types – 2”. 1. What is the PV value for thrust bearings? a) 10,000 b) 50,000 c) 20,000 d) 30,000 2. The load carrying capacity of bearing is expressed as the _______ a) efficiency factor b) work factor c) performance factor … Read more
This set of Powder Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Products – Porous Bearings and Types – 1”. 1. What is the pore volume in bearing materials? a) 14-20% b) 17-30% c) 11-50% d) 28-43% 2. Which of the following substance is added to iron powder to improve the compressive strength of … Read more
This set of Powder Metallurgy Multiple Choice Questions & Answers focuses on “Postsintering Secondary Operations – Steam Treatment, Machining, Joining & Plating – 2”. 1. Which of the following additive is added to improve the tool life of steel parts? a) Copper b) Bismuth c) Lead d) Sulphur 2. What is added to brass to … Read more
This set of Powder Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Postsintering Secondary Operations – Steam Treatment, Machining, Joining & Plating – 1”. 1. Which of the following process consists of heating the P/M part in air at temperature (200-250°C) and is not as effective as steam treatment? a) Low- temperature treatment b) … Read more
This set of Powder Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Postsintering Secondary Operations – Impregnation, Infiltration & Heat Treatment”. 1. Impregnation of sintered component is done using either a _______ or a ________ a) lubricant, resin b) wax, resin c) lubricant, aqueous medium d) oil, wax 2. Porous bearings are impregnated with … Read more
This set of Powder Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Postsintering Secondary Operations – Sizing, Coining & Repressing”. 1. _______ involve deformation of the sintered part at room temperature. a) Sizing and joining b) Repressing c) Shot peening d) Infiltration 2. _______ is a post sintering operation used to correct the dimensional … Read more
This set of Powder Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Sintering – Infiltration”. 1. ______ process involves preparing a porous metallic body and filing its pores with a molten metal having a lower melting point. a) Liquid phase sintering b) Infiltration c) Densification d) Alloying 2. A continuous network of infiltrant metal … Read more
This set of Powder Metallurgy MCQs focuses on “Sintering Practice and Sintering Furnace – 2”. 1. The moisture content of the gas is determined using a _______ a) dew Jug b) dew Cup c) moisture cup d) dew meter 2. Which solution is used to fill the dew cup for carrying out moisture analysis? a) … Read more
This set of Powder Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Sintering Practice and Sintering Furnace – 1”. 1. Which of the following condition is necessary for obtaining consistent and satisfactory sintered components? a) More labor cost b) Long sintering time c) High power consumption d) Short sintering time 2. On the basis … Read more
This set of Powder Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Types of Variables in Sintering”. 1. Which of following is the correct set of material variables in sintering? a) Particle structure and sintering atmosphere b) Particle composition, particle shape, green density and sintering temperature c) Green density and sintering time d) Green … Read more
