The component in very minor quantity in stainless steel that changes the properties to a maximum level is____________?

Related Mcqs:

1. Stabilization of stainless steel is achieved by adding____________?

   A. Carbon
   B. Chromium
   C. Nickel
   D. Titanium

2. Stainless steel is used mostly in dentistry_________________?

   A. To strength amalgam
   B. In orthodontic wires
   C. To construct clasps for partial dentures
   D. To replace internal gold restorations

3. 18-B Stainless steel orthodontic wire has_______________?

   A. 18% Nickel 8% Chrominum
   B. 18% Chromium 8% Nickel
   C. 18% Chromium 8% Cobalt
   D. 18% Carbon 8% Iron

4. Corrosion of stainless steel is due to formulation of_________________?

   A. Chromium carbide
   B. Carbon carbide
   C. Iron carbide
   D. Nickel carbide

5. Stainless steel orthodontic wire can be hardened by________________?

   A. Tempering
   B. Work hardening
   C. Age hardening
   D. Precipitation hardening

6. In a metal ceramic crown for a FPD the function of tin, indium which are readily oxidized minor constituents is to________________?

   A. Improve bonding
   B. Decrease porosity
   C. They react with the porcelain opaque layer, which masks the metal
   D. Improves the thermal expansion between the metal and porcelain

7. The maximum carbon content of steel used in dentistry is__________________?

   A. 19%
   B. 2%
   C. 1.7%
   D. 4%

8. Minor salivary glands are present in the submucosa through out the oral mucosa except for the______________?

   A. Gingiva and anterior part of hard palate
   B. Tongue and soft palate
   C. Retromolar area and hard palate
   D. Lip and posterior third of the hard palate

9. Swelling and redness of the orifices of minor salivary glands of the palate occurs in_________?

   A. Nicotinic stomatitis
   B. Leukoplakia
   C. Fovea Palatine
   D. Erythroplakia

10. Which tumour does not occur in minor salivary gland ?

    A. Pleomorphic adenoma
    B. Adenocarcinoma
    C. Mucoepidermoid carcinoma
    D. Warthin’s tumour