DCOA Mixed Practice Test #850

Question 1

The Kerala Pradesh Congress Committee President (1938) was C. Kunjikkavamma, who was notable for:

Accepted Answer

Participating in Harijan uplift and Khadi Campaign — C. Kunjikkavamma led women's wing and Harijan uplift activities.

Answer

Leading the Salt Satyagraha

Answer

Founding Yogakshema Sabha

Answer

Writing the Malabar Manual

Question 2

Where are the headquarters of IRDAI located?‌​‍

Accepted Answer

Hyderabad — Hyderabad since 2008.‌​‍

Answer

Chennai

Answer

Delhi

Answer

Mumbai

Question 3

Rods function:

Accepted Answer

Low-light vision — Dim light.

Answer

Colour

Answer

Both

Answer

None

Question 4

'Kunjan Pillai' is the real name of:

Accepted Answer

Chattampi Swamikal — Chattampi Swamikal's birth name was Ayyappan Kunjan Pillai.

Answer

Vagbhatananda

Answer

Pandit Karuppan

Answer

V.T. Bhattathiripad

Question 5

EWS reservation (10%) was introduced by:‌​‍

Accepted Answer

103rd Amendment — 103rd Amendment (2019) introduced 10% reservation for Economically Weaker Sections.‌​‍

Answer

99th Amendment

Answer

101st Amendment

Answer

104th Amendment

Question 6

Allotropes of oxygen:‌​‍

Accepted Answer

O₂ and O₃ (ozone) — Ozone in stratosphere absorbs UV. O₃ is bent, stronger oxidiser than O₂.‌​‍

Answer

O₄

Answer

Only O₂

Answer

O, O₂

Question 7

A patient's blood sample is being analyzed for enzyme activity. Which of the following factors, if significantly altered, would most directly lead to the denaturation of an enzyme and loss of its catalytic function?

Accepted Answer

C. Optimal pH deviation — Enzymes are proteins whose catalytic activity is highly dependent on their specific three-dimensional structure. Significant deviation from the optimal pH or temperature can cause denaturation, leading to the unfolding of the enzyme and loss of its active site, thereby abolishing its catalytic function. Substrate concentration, product accumulation, and presence of cofactors primarily affect the rate of enzyme activity rather than causing denaturation.

Answer

A. Substrate concentration

Answer

B. Product accumulation

Answer

D. Presence of cofactors

Question 8

The 'Queen of Spices' is:‌​‍

Accepted Answer

Cardamom — Cardamom = Queen of Spices. Pepper = King of Spices.‌​‍

Answer

Pepper

Answer

Cinnamon

Answer

Clove

Question 9

The scientific study of living organisms is called:

Accepted Answer

Biology — Biology (Greek bios=life, logos=study) — the science of life.

Answer

Geology

Answer

Psychology

Answer

Sociology

Question 10

The Attappady Soil Conservation Project in Kerala receives assistance from:‌​‍

Accepted Answer

The Danish International Development Agency — Funded by DANIDA (Danish International Development Agency).‌​‍

Answer

The Japan International Cooperation Agency

Answer

The Swiss Agency for Development and Cooperation

Answer

The German Agency for Technical Cooperation

DCOA Mixed Practice Test #850