DCOA Mixed Practice Test #607

Question 1

Corporations:‌​‍

Accepted Answer

6 — TVM, Kollam, Kochi, Thrissur, Kozhikode, Kannur.‌​‍

Answer

10

Answer

8

Answer

4

Question 2

Pitch of sound is determined by:‌​‍

Accepted Answer

Frequency — Higher frequency → higher pitch (perceived).‌​‍

Answer

Wavelength only

Answer

Speed

Answer

Amplitude

Question 3

Transpiration occurs in:‌​‍

Accepted Answer

Leaves — Water loss through stomata on leaves.‌​‍

Answer

Roots

Answer

Stem

Answer

Flowers

Question 4

Global warming is mainly caused by:‌​‍

Accepted Answer

Increased greenhouse gas emissions — Increased CO₂, methane, and other greenhouse gas emissions (from fossil fuels, industry) cause global warming.‌​‍

Answer

Deforestation only

Answer

Volcanic eruptions only

Answer

Solar flares

Question 5

Largest gland:‌​‍

Accepted Answer

Liver — Liver — largest gland.‌​‍

Answer

Adrenal

Answer

Pituitary

Answer

Thyroid

Question 6

Kerala Fertility Rate:‌​‍

Accepted Answer

Below replacement — TFR ~1.8 (below 2.1 replacement).‌​‍

Answer

Unknown

Answer

Above

Answer

Equal

Question 7

A Block Development Officer (BDO) in a drought-prone district is tasked with ensuring sustainable water supply under the Jal Jeevan Mission (JJM). The district has historically relied on groundwater, which is now depleting. To ensure the long-term success of JJM in this region, which of the following approaches is most critical for the BDO to prioritize?

Accepted Answer

B. Promoting rainwater harvesting and groundwater recharge structures. — While Functional Household Tap Connections (FHTCs) are a primary deliverable of JJM, ensuring the sustainability of the water source is paramount, especially in drought-prone areas with depleting groundwater. Promoting rainwater harvesting and groundwater recharge directly addresses the long-term availability of water, making the FHTCs truly functional and sustainable. Focusing solely on surface water might not be feasible everywhere, and water quality monitoring, while important, does not address source depletion.

Answer

A. Expediting the installation of Functional Household Tap Connections (FHTCs).

Answer

C. Focusing solely on surface water sources like rivers and reservoirs.

Answer

D. Implementing a robust water quality monitoring system.

Question 8

India's first satellite:‌​‍

Accepted Answer

Aryabhata — Aryabhata (1975).‌​‍

Answer

Rohini

Answer

INSAT

Answer

Bhaskara

Question 9

LIFE Mission (Livelihood Inclusion and Financial Empowerment) was launched by Kerala for:

Accepted Answer

Housing for homeless — LIFE Mission aims to provide homes for all homeless and landless families in Kerala.

Answer

Digital literacy

Answer

Skill development

Answer

Flood relief

Question 10

The mirror used as a rear-view mirror in vehicles is:‌​‍

Accepted Answer

Convex mirror — Convex mirrors are used as rear-view mirrors because they provide a wider field of view, allowing drivers to see more of the road behind.‌​‍

Answer

Plane mirror

Answer

Concave mirror

Answer

Parabolic mirror

DCOA Mixed Practice Test #607