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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

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
Which of the following refractory is used to counteract most of the expansion________________?
A Quartz
B Cristobalite
C Tridymite
D Corundum
Correct Answer: Cristobalite
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