1.  Which of the following bacteria is susceptible to thiophen-2-carboxylic acid hydrazide?
A.M bovis
B.Mycobacterium tuberculosis
C.M chelonei
D.M fortuitum

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2. Culture of tubercle bacilli may be positive if number of bacteria in the specimen is
A.as few as 1-4 per ml
B.as few as 5-9 per ml
C.as few as 10-100 per ml
D.as few as 125-200 per ml

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3. Example of a Saprophytic bacteria is
A.M xenopi
B.Msmegmatis
C.Mycobacterium chelonei
D.M marinum

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4. Eugonic growth on Lowenstein-Jensen medium is produced by
A.M bovis
B.Mycobacterium tuberculosis
C.Both (a) and (b)
D.None of the above

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5. The causative agent of Buruli ulcer is
A.M chelonei
B.M marinum
C.M fortuitum
D.M ulcerarts

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6. False negative Mantoux test is observed in
A.early tuberculosis
B.Advanced tuberculosis
C.Severe malnutrition
D.All of these

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7. Humans become infected with Mycobacterium tuberculosis most frequently by
A.inhalation
B.ingestion
C.contact
D.inoculation

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