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Medical Science Mcqs 5254 MCQs [All-Courses]

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Medical Science is the study of human health, diseases, prevention, and treatment, focusing on diagnosis, patient care, and medical research to improve healthcare outcomes.

All Topics  5254

The function of a sprue is to_______________?
A Form an opening of molten metal to enter the mold
B Help polish cast restorations
C Eliminate air bubbles on the wax pattern
D Reproduce fine detail
Correct Answer: Form an opening of molten metal to enter the mold
Stabilization of stainless steel is achieved by adding____________?
A Carbon
B Chromium
C Nickel
D Titanium
Correct Answer: Titanium
The yield strength of AUstenite (NiTi alloy) is______________?
A 100 Mpa
B 240 Mpa
C 560 Mpa
D 700 Mpa
Correct Answer: 560 Mpa
A highly polished surface on a metallic dental restoration aids considerably in the prevention of the____________?
A Dimensional change
B Thermal conductivity
C Warpage
D Tarnish and corrosion
Correct Answer: Tarnish and corrosion
Tublulence of molten gold is due to _____________?
A Impurities in gold
B Improper venting
C A and B
D None of the above
Correct Answer: None of the above
In a patient with allergy to costume jewelry, which of the following is contraindicated______________?
A High gold
B Low gold
C Palladium – Ag
D Ni – Cr
Correct Answer: Ni – Cr
Indium in metal alloys_______________?
A Improve bonding
B Harden the metal ceramic Ag-Pd alloy
C Both A and B
D None of the above
Correct Answer: Both A and B
Mouth temperature waxes are_______________?
A Iowa wax
B Modeling wax
C Green stick wax
D None of the above
Correct Answer: Iowa wax
Incomplete casting is the result of_____________?
A More porous investment in the mould
B Narrow sprue diameter
C Hollow sprue pin
D Large reservoir
Correct Answer: Narrow sprue diameter
Glossy smooth margins of a casting are due to_____________?
A Shrinkage of alloy on cooling
B Investment breakdown
C Incomplete wax elimination
D Incomplete gas elimination
Correct Answer: Incomplete wax elimination
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