DCOA Mixed Practice Test #390

Question 1

What is evolved at the cathode during electrolysis of aqueous NaCl (brine)?‌​‍

Accepted Answer

Hydrogen — At cathode: 2H⁺ + 2e⁻ → H₂ ↑ (water provides H⁺, not Na⁺ which has higher reduction potential to overcome).‌​‍

Answer

Sodium

Answer

Chlorine

Answer

Oxygen

Question 2

The main venue of the Salt Satyagraha in Kerala was:‌​‍

Accepted Answer

Payyannur — K. Kelappan led the Salt Satyagraha at Payyannur (1930).‌​‍

Answer

Kozhikode

Answer

Guruvayur

Answer

Ponnani

Question 3

The total number of Panchayati Raj institutions in Kerala is:‌​‍

Accepted Answer

978 — Kerala has 978 Gram Panchayats, 152 Block Panchayats, and 14 District Panchayats as part of its three-tier Panchayati Raj system.‌​‍

Answer

1200

Answer

941

Answer

152

Question 4

Mr. Rajesh, a high school English teacher, notices a persistent issue where students struggle to write coherent essays despite receiving instruction on essay structure. If he decides to use action research to address this, what would be the most appropriate *initial* step?

Accepted Answer

B. Formulate a clear research question and collect preliminary data to understand the root causes of the struggle. — The initial step in action research is to clearly define the problem, often by formulating a specific research question, and then to gather preliminary data to understand its specific manifestations and potential causes within the classroom context. Implementing solutions immediately (A) without proper planning or data collection is not an action research approach. Options C and D do not align with the practitioner-led, context-specific nature of action research.

Answer

A. Immediately implement a new essay writing software for all students.

Answer

C. Request a transfer to a different grade level to avoid the problem.

Answer

D. Consult a university professor to conduct a large-scale study on essay writing difficulties.

Question 5

Kerala's first female IAS officer:‌​‍

Accepted Answer

Anna Rajam Malhotra — Anna Rajam Malhotra — first IAS woman from Kerala.‌​‍

Answer

Padmaja Venugopal

Answer

Renuka Sudhakar

Answer

Sheela Thomas

Question 6

The colour of sky appears blue due to:‌​‍

Accepted Answer

Rayleigh scattering of sunlight by atmospheric molecules — Shorter wavelengths (blue) scatter more than longer (red) — hence blue sky.‌​‍

Answer

Refraction

Answer

Absorption

Answer

Reflection of sea

Question 7

Vagbhatanandan, the Kerala reformer, established which organisation?

Accepted Answer

Atmavidya Sangham — Vagbhatanandan founded the Atmavidya Sangham to spread rationalist reform among the Thiyyas of North Kerala.

Answer

Sree Narayana Dharma Paripalana Yogam

Answer

Nair Service Society

Answer

Yogakshema Sabha

Question 8

Sree Chitra Thirunal modernization:‌​‍

Accepted Answer

Cochin Port, Pallivasal HEP, Univ — Several modernisations.‌​‍

Answer

None

Answer

Only college

Answer

Only Pallivasal

Question 9

Who founded Muhammadeeya Sabha in Kannur?

Accepted Answer

Sayyed Sanahulla Makti Thangal — Sayyid Sanaullah Makti Thangal founded Muhammadeeya Sabha for Muslim reform.

Answer

Sheikh Muhammed Hamadani Thangal

Answer

Ummar Khasi

Answer

Vakkom Maulavi

Question 10

Dengue fever is caused by:‌​‍

Accepted Answer

Virus — Dengue is caused by the dengue virus, spread by Aedes mosquitoes.‌​‍

Answer

Not produced by an infective agent

Answer

Bacteria

Answer

Fungi

DCOA Mixed Practice Test #390