211 . A babyis called preterm when born before__
- A. 40 Weeks of pregnancy
- B. 37 Weeks of pregnancy
- C. 32 Weeks of pregnancy
- D. 28 Weeks of pregnancy
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বাংলাদেশ রেলওয়ে ।। হাসপাতালসমূহে সহকারী সার্জন (পায়রা) (06-05-2005)
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212 . A 60 year old gentleman has been diagnosed as vitamin B12 deficiency due to pernicious anemia . which o the following is unlikely to happen?
- A. Posterioor column involvement
- B. Optic atrophy
- C. Corticospina tract involvement
- D. Seizure
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৩৯ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (স্বাস্থ্য ক্যাডার) (03-08-2018)
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213 . At the rate of m meters per s seconds, how many meters does a cyclist travel in x minutes?
- A. m/sx
- B. mx/s
- C. 60m/sx
- D. 60ms/x
- E. 60mx/s
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214 . Which one is not the symptom of a disease caused by Ebola virus?
- A. High blood pressure
- B. Headache
- C. High fever
- D. Stomach pain
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215 . Which of the following statement holds true for the divergence of electric and magnetic flux dendities?
- A. Both are zero
- B. These are zero for static flux dendities but non-zero for time -varying flux dendities
- C. It is zero for electric flux densities
- D. It is zero for magnetic flux densities
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বিভিন্ন মন্ত্রণালয় | সহকারী ম্যানটেনেন্স প্রকৌশলী | 24-05-2022
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216 . When sunlight passes through tiny suspended rain drops it produces—
- A. Rainbow
- B. White light
- C. Ultraviolet ray
- D. None
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217 . The speed of a DC shunt motor is required to be more than full load speed . This is possible by-
- A. reducing the field current
- B. decreasing the armature current
- C. increasing the armature current
- D. None of the above
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বিভিন্ন মন্ত্রণালয় | সহকারী ম্যানটেনেন্স প্রকৌশলী | 24-05-2022
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218 . The radiant energy of the Sun results from—
- A. Nuclear fusion
- B. Nuclear fission
- C. Cosmic radiation
- D. Combustion
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219 . The emf generated in a dc generator is directly proportional to
- A. Flux per pole
- B. No, of oples
- C. Spped of armature
- D. all above
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বিভিন্ন মন্ত্রণালয় | সহকারী ম্যানটেনেন্স প্রকৌশলী | 24-05-2022
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220 . The applied voltage of a certain transformer is increased by 50%, while the frequency is reduced by 50%. The maximum core flux density will
- A. become three times
- B. become 1.5 times
- C. become half
- D. remian the same
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বিভিন্ন মন্ত্রণালয় | সহকারী ম্যানটেনেন্স প্রকৌশলী | 24-05-2022
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221 . The affected parameter by shunt capacitance are -
- A. real power
- B. reactive power
- C. frequency
- D. all of these
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বিভিন্ন মন্ত্রণালয় | সহকারী ম্যানটেনেন্স প্রকৌশলী | 24-05-2022
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222 . Soil erosion can be prevented by-
- A. increasing bird
- B. afforestation
- C. removal of vegetation
- D. over grazing
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223 . Richter scale measures
- A. Total area of destruction
- B. Intensity of the earthquake
- C. Focus of earthquake
- D. Magnitude of earthquake
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224 . Manometer is used to measure
- A. Tempereture difference between two points
- B. Pressure difference between two points
- C. Humidity difference between two points
- D. Height difference between two points
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225 . Jaundice affects the —
- A. Heart
- B. Liver
- C. Lunge
- D. Mind
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