medical MCQs – Page 114

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

2261. For uniform staining reaction, morphology and biochemical activity it is advisable to study bacterial cultures during the_____________?
comments icon0

A. Lag phase

B. Death phase

C. Stationary phase

D. Logarithmic phase
2262. Bacteria acquire characteristics by all of the following except___________________?
comments icon0

A. through conjugation

B. Incorporating part of host DNA

C. Though plasmids

D. Through bacteriophages

2263. Etching depth after 30 sec for orthodontic bracket with orthophosphoric acid is_________________?
comments icon0

A. 3 um 9 um

B. 200 um 250 um

C. 50 um 110 um

D. 10 um 20 um
2264. Acrylic resins were first introduced as a denture base material in______________?
comments icon0

A. 1951

B. 1937

C. 1925

D. 1956

2265. Sublimation is the conversion of a___________________?
comments icon0
A. Solid directly to gas

B. Gas to liquid and then to soild

C. Solid to liquid and then to gas

D. Gas directly to liquid

2266. Salmonella typhi can be isolated at different times from______________?
comments icon0
A. All of the above

B. Urine

C. Blood

D. Feaces

2267. Property of the material, which describes the resistance to abrasion, is_________________?
comments icon0

A. Modulus of elasticity

B. Hardness

C. None of the above

D. Yield strength

2268. Silver impregnation method of staining is useful to demonstrate_____________?
comments icon0

A. Bacterial flagella

B. Spirochetes

C. Both of the above

D. None of the above

2269. An oxidase-positive, gram-negative rod which produces a bluish-green pigment has been grown in culture from a swab obtained from an infected burn wound. This organism is susceptible to gentamicin, ticarcillin and tobramicin, but resistant to all the other antibiotics which of the following organisms is it likely to be ?
comments icon0

A. Proteus miribilis

B. Klebsiella pnemoniae

C. Escherichia coli

D. Pseudomonas aeruginosa
2270. True about VDRL test________________?
comments icon0
A. All of the above

B. Best followed for drug therapy

C. Slide flocculation test

D. Non Specific

2271. The most common site where organisms are present in a typhoid carrier is______________?
comments icon0

A. Spleen

B. Liver

C. Gall Bladder

D. Salivary gland

2272. In small intestine, cholera toxin acts by______________?
comments icon0

A. Active absorption of NaCI

B. Activation of GTPase

C. ADP ribosylation of the G regulatory protein

D. Inhibition of adenyl cyclase

2273. Ideal requirement of metal ceramic casting____________?
comments icon0
A. All of the above

B. Bonding between ceramic and alloy

C. Matching of coefficients of thermal expansion of ceramics and alloy

D. Low fusing ceramic and high fusing alloys

2274. The strain that occurs when a material is stressed to its proportional limit is______________?
comments icon0

A. Resilience

B. Toughness

C. Maximum flexibility

D. Elastic limit

2275. The proportional limit is defined as______________?
comments icon0

A. The minimum force required to cause a structure to break

B. The maximum stress in a structure

C. The maximum stress that can be induced without permanent deformation

D. The maximum elongation under tension that can be measured before failure

2276. All of the following are true of streptococcus except_____________?
comments icon0
A. Its group of lactic acid production bacteria

B. Most common in humans

C. Most common is animals

D. Shows adherence to dental enamel

2277. About Psedomonas. All are true except________________?
comments icon0

A. Strick aerobes

B. Can grow in disinfectants in hospital

C. Infection is mostly due to endogenous source

D. Most common organism is burn patient

2278. Following are the characteristics of Vincents angina EXCEPT_______________?
comments icon0
A. Caused by leptospira interrogans

B. A symbiotic infection

C. Caused due to malnutrition

D. Ulcerative gingivostomatitis

2279. Hardness number which does not depend on the ductility of metal_____________?
comments icon0

A. VHN

B. RHN

C. BHN

D. KNH
2280. During polymerisation of acrylic resin, above what temperature benzoyl peroxide form freeradicals_______________?
comments icon0

A. 50C

B. 60C

C. 25C

D. 37C