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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

Who was the first person to introduce cast inlay restoration into dentistry ?
A William H Taggart
B Buonocore
C G.V. Black
D Bowen
Correct Answer: William H Taggart
Disadvantage of having a short sprue is________________?
A Rapid solidification of metal
B No place for reservoirs
C Incomplete evacuation of gases
D Difficulty in removing casting from investment
Correct Answer: Incomplete evacuation of gases
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
Correct Answer: 18% Chromium 8% Nickel
Inlay wax is used to_______________?
A Temporarily cement inlays:
B Make inlay wax patterns
C Invest inlay patterns
D Box models
Correct Answer: Make inlay wax patterns
Quartz in investment material is added for_______________?
A Strength
B Expansion components for casting shrinkage
C Decrease strength
D Contraction
Correct Answer: Expansion components for casting shrinkage
The sprue in wax pattern should be placed________________?
A At right angle
B At 45°C angle
C At obtuse angle
D It depend upon type of wax pattern
Correct Answer: At 45°C angle
Gold content of an 18 carat alloy is______________?
A 25%
B 50%
C 75%
D 100%
Correct Answer: 75%
Titanium casting is done_____________?
A Under vacuum in argon atmosphere
B Under air pressure in nitrogen atmosphere
C In specially fabricated aluminium vanadium
D Using CAD-CAM technique
Correct Answer: Under vacuum in argon atmosphere
Heat hardening is the process done at_______________?
A Heating 750°C and slowly cooling to zero degree
B Heating quickly upto 450°C followed by sudden quenching
C Heating upto 250°C for 15 to 30 min
D Heating at 750°C and then quenching to room temperature
Correct Answer: Heating upto 250°C for 15 to 30 min
Crucible indicated for casting base metal alloys is______________?
A Carbon crucible
B Clay crucible
C Quartz crucible
D High melting plastic crucible
Correct Answer: Quartz crucible
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