76 . Determine power rating of an electric motor if it runs at 1440 rpm and line shaft transmits torque of 75 Nm. Assume Reduction ratio =1.6

A. 10.36 kW
B. 9.12kW
C. 7.068kW
D. 11.3 kW

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Answer: Option C

Explanation:

Assistant Director (Engineering -Mechanical) | 11.01.2019

A. Urogenital diaphragm
B. Urinary bladder
C. Scrotum
D. Spermatic cord

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Answer: Option B

Explanation:

The detrusor muscle is located within the walls of the bladder and is composed of smooth muscle fibers that are longitudinal and circular.

৩৯ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (স্বাস্থ্য ক্যাডার) (03-08-2018)

A. Chromosome
B. Lysosome
C. Golgi complex
D. Ribosome

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Answer: Option A

Explanation:

Researchers refer to DNA found in the cell's nucleus as nuclear DNA. An organism's complete set of nuclear DNA is called its genome. Besides the DNA located in the nucleus, humans and other complex organisms also have a small amount of DNA in cell structures known as mitochondria.

৩৯ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (স্বাস্থ্য ক্যাডার) (03-08-2018)

A. Colchichine
B. Levofloxacin
C. Pyrazinamide
D. Steroid

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Answer: Option C

Explanation:

The principal drugs that contribute to hyperuricemia by decreased excretion are the primary antiuricosurics.

Other drugs and agents include diuretics, salicylates, pyrazinamide, ethambutol, nicotinic acid, ciclosporin, 2 - ethylamino - 1,3,4 - thiadiazole, and cytotoxic agents

৩৯ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (স্বাস্থ্য ক্যাডার) (03-08-2018)

A. Sulfasalazine
B. Ivermectin
C. Permethrin
D. Streptomycin

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Answer: Option C

Explanation:

Permethrin is the drug of choice for the treatment of scabies.

Topical permethrin should be administered every 2 - 3 days for 1 - 2 weeks to treat crusted scabies. Benzyl benzoate 25% (with or without tea tree oil) Benzyl benzoate may be used as an alternative topical agent to permethrin.

৩৯ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (স্বাস্থ্য ক্যাডার) (03-08-2018)

A. Growth hormone
B. Insulin
C. Adrenaline
D. Cortisol

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Answer: Option A

Explanation:

৩৯ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (স্বাস্থ্য ক্যাডার) (03-08-2018)

A. Auricle of ear
B. Epiphyseal plate of bone
C. Auditroy tube
D. Epiglottis

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Answer: Option B

Explanation:

৩৯ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (স্বাস্থ্য ক্যাডার) (03-08-2018)

A. Auricle of ear
B. Epiphyseal plate of bone
C. Auditroy tube
D. Epiglottis

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Answer: Option B

Explanation:

84 . Erythrocytes fetal-is may develop when :

A. Rh (+) mother carries Rh (+) fetus
B. Rh (-) mother carrier Rh (-) fetus
C. Rh (+) mother carries Rh (-) fetus
D. Rh (-) mother carries Rh (+)

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Answer: Option D

Explanation:

Erythroblastosis fetalis classically results from Rho(D) incompatibility, which may develop when a woman with Rh - negative blood is impregnated by a man with Rh - positive blood and conceives a fetus with Rh - positive blood, sometimes resulting in hemolysis.

৩৯ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (স্বাস্থ্য ক্যাডার) (03-08-2018)

A. 30pg
B. 35 pg
C. 20 pg
D. 25 pg

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Answer: Option C

Explanation:

An exotoxin is a toxin secreted by bacteria. An exotoxin can cause damage to the host by destroying cells or disrupting normal cellular metabolism. They are highly potent and can cause major damage to the host. Exotoxins may be secreted, or, similar to endotoxins, may be released during lysis of the cell.

৩৯ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (স্বাস্থ্য ক্যাডার) (03-08-2018)

A. Kuru
B. Nipah encephalitis
C. Necrotizing fascitis
D. Wegencr's gramulomatosis

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Answer: Option C

Explanation:

৩৯ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (স্বাস্থ্য ক্যাডার) (03-08-2018)

A. Cog wheel rigidity
B. Hyper reflexion of lower limb
C. Flacid paralysis
D. Hyper kinesia

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Answer: Option A

Explanation:

Medications. Extrapyramidal symptoms are most commonly caused by typical antipsychotic drugs that antagonize dopamine D2 receptors. The most common typical antipsychotics associated with EPS are haloperidol and fluphenazine.

৩৯ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (স্বাস্থ্য ক্যাডার) (03-08-2018)

A. Muscular tissue
B. Connective tissue
C. Narvous tissue
D. Epithelial tissue

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Answer: Option B

Explanation:

In biology, the extracellular matrix (ECM) is a three - dimensional network consisting of extracellular macromolecules and minerals, such as collagen, enzymes, glycoproteins and hydroxyapatite that provide structural and biochemical support to surrounding cells Because multicellularity evolved independently in different multicellular lineages, the composition of ECM varies between multicellular structures; however, cell adhesion, cell - to - cell communication and differentiation are common functions of the ECM.

৩৯ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (স্বাস্থ্য ক্যাডার) (03-08-2018)

A. Tubulin
B. Gastrin
C. Elastin
D. Keratin

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Answer: Option C

Explanation:

Elastins, in contrast to collagens, give elasticity to tissues, allowing them to stretch when needed and then return to their original state.

This is useful in blood vessels, the lungs, in skin, and the ligamentum nuchae, and these tissues contain high amounts of elastins. Elastins are synthesized by fibroblasts and smooth muscle cells.

Elastins are highly insoluble, and tropoelastins are secreted inside a chaperone molecule, which releases the precursor molecule upon contact with a fiber of mature elastin. Tropoelastins are then deaminated to become incorporated into the elastin strand.

Disorders such as cutis laxa and Williams syndrome are associated with deficient or absent elastin fibers in the ECM.

৩৯ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (স্বাস্থ্য ক্যাডার) (03-08-2018)

A. Common age after 30 years
B. Stroma is scanty
C. Usually multiple
D. Rectangular in shape

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Answer: Option C

Explanation:

৩৯ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (স্বাস্থ্য ক্যাডার) (03-08-2018)

76 . Determine power rating of an electric motor if it runs at 1440 rpm and line shaft transmits torque of 75 Nm. Assume Reduction ratio =1.6

77 . Detrusor muscle is a muscle of

78 . DNA is found in:

79 . Drug causing increased uric acid level is:

80 . Drug used in 'Scabies' is:

81 . During sleep, there is fall in the circulating level of hormone except :

82 . Elastic cartilage is not found in :

83 . Elastic cartilage is not found in :

84 . Erythrocytes fetal-is may develop when :

85 . Exotoxin mediated disease is :

86 . Exotoxin mediated disease is:

87 . Extra pyramidal lesion causes:

88 . Extracellular matrix is more in :

89 . Extracellular structural protein is :

90 . Features of fibroadenoma include :

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