DCOA Mixed Practice Test #606

Question 1

The scientific name of humans is:‌​‍

Accepted Answer

Homo sapiens — Modern humans are classified as Homo sapiens.‌​‍

Answer

Homo habilis

Answer

Homo neanderthalensis

Answer

Homo erectus

Question 2

A watch given for repair is an example of a contract of:

Accepted Answer

Bailment — Bailment (Section 148, Indian Contract Act) — delivery of goods for a purpose with the understanding that they be returned.

Answer

Agency

Answer

Sale of goods

Answer

General contract

Question 3

The Ottoman Empire captured Constantinople in:‌​‍

Accepted Answer

1453 — Sultan Mehmed II captured Constantinople 29 May 1453, ending Byzantine Empire. ‌​‍Renamed Istanbul. Ottoman Empire lasted till 1923 (formation of Turkish Republic under Atatürk).

Answer

1923

Answer

1683

Answer

1204

Question 4

The unit of electric flux is:‌​‍

Accepted Answer

Volt-metre (V·m) — Electric flux ΦE has SI units of N·m²/C = V·m.‌​‍

Answer

Tesla

Answer

Farad

Answer

Weber

Question 5

A teacher notices that a student frequently appears tired, irritable, and struggles to concentrate in class, often missing meals before school. According to Maslow's Hierarchy of Needs, which level of need should the teacher address first to support the student's learning?

Accepted Answer

C. Physiological Needs — Maslow's Hierarchy posits that basic needs must be met before individuals can progress to higher-level needs. Tiredness, irritability, and missed meals directly relate to Physiological Needs (e.g., sleep, food). Addressing these fundamental needs is crucial before the student can effectively engage in learning or fulfill higher needs like safety, esteem, or self-actualization.

Answer

A. Safety Needs

Answer

B. Esteem Needs

Answer

D. Self-actualization Needs

Question 6

In a galvanic cell, the anode is the:‌​‍

Accepted Answer

Negative electrode (oxidation) — In galvanic cells: anode = negative = oxidation; cathode = positive = reduction.‌​‍

Answer

Neutral plate

Answer

Salt bridge

Answer

Positive electrode (reduction)

Question 7

A specialist in skin disorders is a:‌​‍

Accepted Answer

Dermatologist — Dermatologist: skin, hair, nail conditions.‌​‍

Answer

Paediatrician

Answer

Ophthalmologist

Answer

Cardiologist

Question 8

The Kerala model of development is often cited for its success in achieving high social indicators despite moderate economic growth. Which sector has played a crucial role in this model?

Accepted Answer

C. Healthcare and Education — The Kerala model's success is attributed to strong investments in healthcare and education, which improved human development indices even with lower per capita income. This sectoral focus enabled better life expectancy and literacy rates, unlike industrial sectors which are not the primary drivers.

Answer

A. Information Technology and Start-ups

Answer

B. Agriculture and Rural Development

Answer

D. Manufacturing and Heavy Industries

Question 9

A patient is experiencing severe muscle weakness due to a mitochondrial disorder affecting energy production. Which molecule, directly produced by cellular respiration, is the primary immediate source of energy for muscle contraction and other cellular activities?

Accepted Answer

C. Adenosine Triphosphate (ATP) — ATP is the universal energy currency of the cell, directly powering most cellular processes including muscle contraction. Glucose is the primary fuel source, which is broken down to produce ATP. Pyruvate is an intermediate in glucose metabolism, and lactic acid is a byproduct of anaerobic glycolysis, not a direct energy source.

Answer

A. Glucose

Answer

B. Pyruvate

Answer

D. Lactic Acid

Question 10

Which supplement is now a new treatment for diarrhoea given along with ORS?

Accepted Answer

Zinc — WHO/UNICEF recommend zinc supplementation with ORS to reduce diarrhoea duration and severity.

Answer

Calcium

Answer

Phosphorus

Answer

Lithium

DCOA Mixed Practice Test #606