DCOA Mixed Practice Test #118

Question 1

The Vaikom Satyagraha was led by whom in its later stage when Gandhiji visited?‌​‍

Accepted Answer

George Joseph — George Joseph took over leadership when Gandhi visited March 1925.‌​‍

Answer

K. Kelappan

Answer

T.K. Madhavan

Answer

K.P. Kesava Menon

Question 2

The smallest functional unit of the nervous system is the:‌​‍

Accepted Answer

Neuron — Neuron transmits electrical signals; has dendrites, cell body, axon.‌​‍

Answer

Synapse

Answer

Axon

Answer

Dendrite

Question 3

A clinical pathology report shows significantly elevated levels of Alanine Aminotransferase (ALT) and Aspartate Aminotransferase (AST). These findings primarily suggest damage to which organ?

Accepted Answer

C. Liver — ALT and AST are enzymes predominantly found in liver cells. When liver cells are damaged, these enzymes leak into the bloodstream, leading to elevated levels. Therefore, significantly elevated ALT and AST are primary indicators of liver damage or disease. While AST can also be found in the heart and skeletal muscle, ALT is more specific to the liver.

Answer

A. Kidneys

Answer

B. Pancreas

Answer

D. Heart

Question 4

A teacher observes that a student performs exceptionally well in music, spatial tasks, and body coordination but finds it challenging to express ideas verbally. According to Gardner's theory, which intelligences are most prominently displayed by this student?

Accepted Answer

B. Musical, Spatial, and Bodily-Kinesthetic — Gardner's Multiple Intelligences Theory identifies Musical, Spatial, and Bodily-Kinesthetic intelligences as distinct and independent abilities. The student's strengths in music, spatial tasks, and body coordination align with these intelligences. Linguistic and Interpersonal intelligences involve verbal expression and social interactions, which the student struggles with, making them the less likely dominant intelligences.

Answer

A. Linguistic and Interpersonal

Answer

C. Logical-Mathematical and Naturalistic

Answer

D. Intrapersonal and Existential

Question 5

Vital capacity =

Accepted Answer

IRV + ERV + TV — Maximum air exhaled after maximum inhalation. ~4500-5000 mL. Total Lung Capacity = VC + RV.

Answer

TV

Answer

Only residual volume

Answer

All lung volume

Question 6

He is ___ university graduate.

Accepted Answer

a — 'University' starts with a consonant sound (y-sound) → 'a'.

Answer

an

Answer

the

Answer

of

Question 7

A couple is seeking genetic counseling due to a family history of an autosomal recessive disorder. The father is identified as a carrier, while the mother has no family history of the disorder and genetic testing confirms she is not a carrier. What is the probability that their child will be affected by this specific autosomal recessive disorder?

Accepted Answer

A. 0% — For an autosomal recessive disorder to manifest, an individual must inherit two copies of the recessive allele (one from each parent). In this scenario, the father is a carrier (Aa) and the mother is not a carrier (AA). Therefore, any child will inherit a dominant 'A' allele from the mother, making it impossible for them to inherit two recessive 'a' alleles and thus be affected by the disorder.

Answer

B. 25%

Answer

C. 50%

Answer

D. 75%

Question 8

Wayanad formed:‌​‍

Accepted Answer

1980 — 1 November 1980 from Kozhikode-Kannur.‌​‍

Answer

1956

Answer

1990

Answer

1970

Question 9

Oxidation state of S in H₂SO₄:‌​‍

Accepted Answer

+6 — H=+1, O=-2. 2(+1) + S + 4(-2) = 0 → S = +6. Highest oxidation state of sulfur.‌​‍

Answer

+2

Answer

-2

Answer

+4

Question 10

Gas exchange in the human respiratory system primarily occurs in which of the following structures?

Accepted Answer

D. Alveoli — Alveoli are tiny air sacs in the lungs with thin walls, perfectly adapted for the efficient exchange of oxygen into the blood and carbon dioxide out of the blood. The trachea, bronchi, and larynx are part of the conducting zone, responsible for air transport, warming, and filtering, not gas exchange.

Answer

A. Trachea

Answer

B. Bronchi

Answer

C. Larynx

DCOA Mixed Practice Test #118