OTS Water & Sanitation Dept (WSSP / PHED) Everyday Science: Practice MCQs with Answers

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Sample OTS Water & Sanitation Dept (WSSP / PHED) Everyday Science practice questions

1. Q1. Addison's disease is caused by the deficiency of the:

   • A) Melanophore-stimulating hormone
   • B) Luteinizing hormone
   • C) Adrenocorticotropic hormone
   • D) Antidiuretic hormone

   Answer: Adrenocorticotropic hormone

2. Q2. Gerontology is the study of:

   • A) The process of aging
   • B) The growth of cells
   • C) Birds
   • D) Vegetables

   Answer: The process of aging

3. Q3. Domestic electrical wiring is basically a ______.

   • A) series connection
   • B) parallel connection
   • C) combination of series and parallel connections
   • D) series connection within each room and parallel connection elsewhere

   Answer: parallel connection

4. Q4. Which type of ecological succession begins on bare rock with no prior soil or organisms?

   • A) Secondary succession
   • B) Seasonal succession
   • C) Primary succession
   • D) Climax succession

   Answer: Primary succession

5. Q5. Soap and detergents remove the dirt from clothes due to:

   • A) Osmosis
   • B) Capillary action
   • C) Interfacial tension
   • D) Diffusion

   Answer: Interfacial tension

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