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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

Ag-Cu eutectic alloy has a characteristic Property of that fusion temp of_____________?
A The resultant alloy is greater
B The resultant alloy is lesser
C The resultant alloy varies according to the content of Ag of Cu
D None of the above
Correct Answer: The resultant alloy is lesser
What is the recommended for condensation of dental amalgam ?
A 35 pounds
B 3 pounds
C 15 lb
D 25 lb
Correct Answer: 3 pounds
Which is not true about high copper amalgam alloys______________?
A Low tensile and compressive strength
B Low Hg: Alloy ratio
C High tensile strength
D Low creep
Correct Answer: Low tensile and compressive strength
Amalgam means_____________?
A A metallic powder composed of silver, tin, copper and zinc
B An alloy of two or more metals one of which is mercury
C An alloy of two or more metals that have been dissolved in each other in the molten state
D A metallic substances in powder or tablet from that is mixed with mercury
Correct Answer: An alloy of two or more metals one of which is mercury
In amalgam alloy which acts as oxygen scavenger_____________?
A Cu
B Zn
C Pd
D Ag
Correct Answer: Zn
By increasing the percentage of which metal, the strength and hardness of amalgam increases_____________?
A Ag
B Zn
C Cu
D Hg
Correct Answer: Cu
Which of the following statement is true regarding lathe cut low Copper silver alloy ?
A Requires least amount of mercury
B Achieves high compressive strength at 1 hr.
C Has tensile strength both at 15 minutes and 7 days is comparable to high copper, unicompositional alloys
D Has lower cree value
Correct Answer: Has tensile strength both at 15 minutes and 7 days is comparable to high copper, unicompositional alloys
Creep value of which of the following is the highest ?
A Low copper amalgam alloy
B Admix alloy
C Single composition alloys
D Creep value of all the above mentioned alloys is same
Correct Answer: Low copper amalgam alloy
Amalgam achieves 70% of the strength by____________?
A hours
B 4 hours
C 8 hours
D 16 hours
Correct Answer: hours
Mercury is toxic because it_____________?
A Complexes with hemoglobinto form methemoglobin
B Inhibits hemoglobin synthesis, producing anemia
C Inhibits anaerobic glycolysis
D Binds to sulfhydryl groups
Correct Answer: Binds to sulfhydryl groups
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