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
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
3. Example of a Saprophytic bacteria is
A.M xenopi
B.Msmegmatis
C.Mycobacterium chelonei
D.M marinum
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
5. The causative agent of Buruli ulcer is
A.M chelonei
B.M marinum
C.M fortuitum
D.M ulcerarts
6. False negative Mantoux test is observed in
A.early tuberculosis
B.Advanced tuberculosis
C.Severe malnutrition
D.All of these
7. Humans become infected with Mycobacterium tuberculosis most frequently by
A.inhalation
B.ingestion
C.contact
D.inoculation
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