DCOA Mixed Practice Test #494

Question 1

Mangalavanam Bird Sanctuary is located in the heart of which city?‌​‍

Accepted Answer

Kochi — Mangalavanam is a mangrove wetland in the heart of Kochi city, often called the green lung of Kochi.‌​‍

Answer

Thrissur

Answer

Thiruvananthapuram

Answer

Kozhikode

Question 2

Janayugom by:

Accepted Answer

CPI — CPI.

Answer

CPI(M)

Answer

Congress

Answer

IUML

Question 3

Dockyard found at:‌​‍

Accepted Answer

Lothal — Lothal, Gujarat.‌​‍

Answer

Harappa

Answer

Mohenjo-daro

Answer

Kalibangan

Question 4

A farmer in Kerala is considering cultivating crops that require well-drained laterite soil, moderate rainfall, and undulating terrain suitable for terraced farming. Based on these conditions, which physiographic region would be most appropriate for establishing such a farm?

Accepted Answer

B. Midland region, characterized by laterite soil, undulating hills, and suitability for cash crops like rubber and spices. — The midland region of Kerala is distinctively characterized by undulating hills and valleys, predominantly featuring well-drained laterite soils. These conditions are ideal for cultivating cash crops such as rubber, spices, and cashew, often practiced on terraced slopes. The highland region has steeper terrain and different soil types, while the lowland and coastal plains have flat terrain with alluvial or sandy soils, making them unsuitable for the described farming.

Answer

A. Highland region, due to its high altitude and rich forest soil.

Answer

C. Lowland region, known for its alluvial plains and backwaters, ideal for paddy cultivation.

Answer

D. Coastal plain, with sandy soils and proximity to the sea, suitable for coconut plantations.

Question 5

Many enzymes require non-protein components to exhibit their catalytic activity. These components, if organic molecules, are often referred to as coenzymes. What is the primary function of a coenzyme in an enzymatic reaction?

Accepted Answer

C. To carry chemical groups or electrons between enzymes. — Coenzymes are organic non-protein molecules that often function as intermediate carriers of electrons or specific chemical groups (e.g., phosphate, acetyl, methyl groups) during enzymatic reactions. They assist enzymes in catalysis by facilitating the transfer of these groups, without being consumed in the overall reaction. They do not provide activation energy or inhibit enzymes.

Answer

A. To provide the activation energy for the reaction.

Answer

B. To act as a competitive inhibitor of the enzyme.

Answer

D. To irreversibly bind to the active site and denature the enzyme.

Question 6

Who wrote Jnanappana?‌​‍

Accepted Answer

Poonthanam — Poonthanam — devotional poem on futility of worldly knowledge.‌​‍

Answer

Melpathur

Answer

Ezhuthachan

Answer

Cherusseri

Question 7

Kerala's literacy rate (2011 Census):‌​‍

Accepted Answer

93.91% — 93.91% — highest in India.‌​‍

Answer

85.91%

Answer

90.91%

Answer

96.91%

Question 8

Aconcagua in:‌​‍

Accepted Answer

Andes (Argentina) — Highest outside Asia.‌​‍

Answer

Rockies

Answer

Alps

Answer

Himalayas

Question 9

The term 'light year' is a unit of:

Accepted Answer

distance — 1 light-year ≈ 9.46 × 10¹² km — a unit of astronomical distance.

Answer

intensity of light

Answer

speed of light

Answer

time

Question 10

Kerala's per-capita electricity consumption:‌​‍

Accepted Answer

Higher than national average — Above national average.‌​‍

Answer

Unknown

Answer

Lower

Answer

Equal

DCOA Mixed Practice Test #494