DCOA Mixed Practice Test #605

Question 1

Group 2 (alkaline earth metals) include:‌​‍

Accepted Answer

Be, Mg, Ca, Sr, Ba — +2 oxidation state. ‌​‍Mg in chlorophyll; Ca in bones/teeth. Harder than alkali metals.

Answer

Li, Na, K

Answer

N, P, As

Answer

F, Cl, Br

Question 2

Which organ produces bile?‌​‍

Accepted Answer

Liver — Liver produces bile. Gallbladder stores bile.‌​‍

Answer

Pancreas

Answer

Stomach

Answer

Gallbladder

Question 3

Price floor (minimum price) above equilibrium causes:‌​‍

Accepted Answer

Surplus — Price floor (e.g., minimum wage above market rate, agricultural MSP above market): supply > demand. ‌​‍MSP procurement by FCI creates food grain surplus/storage.

Answer

Shortage

Answer

No effect

Answer

Equilibrium

Question 4

A.K. Gopalan and P. Krishna Pillai acted as volunteer captains during:‌​‍

Accepted Answer

Guruvayur Satyagraha — AKG and Krishna Pillai were the volunteer captains of the 1931-32 Guruvayur Temple entry movement.‌​‍

Answer

Paliyam Satyagraha

Answer

Salt Satyagraha

Answer

Vaikom Satyagraha

Question 5

Nipah outbreak 2023:

Accepted Answer

Kozhikode — Kozhikode, September 2023.

Answer

Ernakulam

Answer

Thrissur

Answer

TVM

Question 6

Which musical instrument is used in Sopana Sangeetham?

Accepted Answer

Idakka — The hourglass drum 'Idakka' accompanies Sopana Sangeetham in Kerala temples.

Answer

Thudi

Answer

Chenda

Answer

Veena

Question 7

In a constructivist classroom using the 5E model, students are asked to design an experiment to test the effectiveness of different antiseptics on bacterial growth. Which phase of the 5E model does this activity primarily represent?

Accepted Answer

C. Explore — The 'Elaborate' phase involves applying knowledge to new contexts or extending understanding through open-ended tasks. Designing an experiment (Option B) demonstrates higher-order thinking and application, which aligns with this phase. The 'Explore' phase would involve hands-on activities without the complexity of designing a full experiment.

Answer

A. Explain

Answer

B. Elaborate

Answer

D. Evaluate

Question 8

Which metal is extracted by electrolysis of alumina in cryolite?

Accepted Answer

Aluminium (Hall-Héroult) — Al₂O₃ dissolved in molten cryolite (Na₃AlF₆) is electrolysed at ~1000 °C to yield Al.

Answer

Iron

Answer

Copper

Answer

Zinc

Question 9

Which services does the UMANG app provide under Digital India?‌​‍

Accepted Answer

e-Governance services on mobile — UMANG (Unified Mobile Application for New-age Governance) provides access to multiple government services via a single app.‌​‍

Answer

Digital land records only

Answer

AI chatbot assistance

Answer

Unified payment interface

Question 10

KSDP — Kerala State Drug & Pharma:

Accepted Answer

Alappuzha — Alappuzha KSDP.

Answer

TVM

Answer

Kochi

Answer

Thrissur

DCOA Mixed Practice Test #605