LGS Mixed Practice Test #78

Question 1

During a routine urine analysis, a high urine specific gravity (e.g., >1.030) in a non-diabetic patient, combined with other symptoms, could indicate:

Accepted Answer

C. Dehydration — Urine specific gravity measures the concentration of solutes in urine. A high specific gravity indicates concentrated urine, which is a common finding in dehydration as the kidneys conserve water. Excessive fluid intake or diabetes insipidus would typically result in a low urine specific gravity due to dilute urine. While renal tubular damage can affect urine concentration, high specific gravity itself points towards the body's attempt to conserve fluid.

Answer

A. Excessive fluid intake

Answer

B. Renal tubular damage affecting reabsorption

Answer

D. Diabetes insipidus

Question 2

Centre of mass of a uniform triangular lamina lies at:‌​‍

Accepted Answer

Centroid (intersection of medians) — Centroid divides each median in 2:1. ‌​‍For uniform mass distribution, centroid = CoM.

Answer

Circumcentre

Answer

Orthocentre

Answer

Incentre

Question 3

Dry ice is the solid form of:‌​‍

Accepted Answer

Carbon Dioxide — Dry ice is solid Carbon Dioxide (CO₂). ‌​‍It sublimes directly from solid to gas at -78.5°C, without passing through a liquid phase.

Answer

Oxygen

Answer

Nitrogen

Answer

Water

Question 4

A high school history teacher is concerned about the lack of critical thinking skills among her students when analyzing primary sources. She embarks on an action research project to test a new instructional strategy involving guided inquiry questions. Through this process, she is most likely to experience:

Accepted Answer

B. An enhanced understanding of her teaching practices and increased professional empowerment. — Action research is empowering for teachers as it involves them in systematic inquiry into their own practice, leading to deeper understanding and professional growth. It enhances autonomy, rather than reducing it (A), as the teacher is the primary researcher and decision-maker. It does not typically lead to pressure for broad generalization (C) or definitive universal solutions (D), as its focus is on context-specific improvement.

Answer

A. A reduction in her autonomy as an educator due to adherence to strict research protocols.

Answer

C. Pressure to generalize her findings to other history teachers without sufficient evidence.

Answer

D. A definitive solution applicable to all future teaching challenges in critical thinking.

Question 5

Low-dose aspirin is commonly prescribed for cardiovascular disease prevention due to its antiplatelet effect. This effect is primarily achieved by:

Accepted Answer

A. Inhibiting thromboxane A2 synthesis. — Aspirin exerts its antiplatelet effect by irreversibly inhibiting cyclooxygenase-1 (COX-1) in platelets. This inhibition prevents the synthesis of thromboxane A2 (TXA2), a potent mediator of platelet aggregation and vasoconstriction. By reducing TXA2 production, aspirin effectively diminishes platelet aggregation and reduces the risk of thrombotic events.

Answer

B. Activating plasminogen.

Answer

C. Blocking ADP receptors on platelets.

Answer

D. Inhibiting factor Xa.

Question 6

Miller's magical number (STM capacity):

Accepted Answer

7 ± 2 items — George Miller (1956). Chunking can expand effective capacity. Modern estimates ~4 ± 1 for working memory.

Answer

3

Answer

20

Answer

100

Question 7

In a classroom setting, a student demonstrates exceptional spatial reasoning (e.g., visualizing 3D structures) but has average verbal abilities. Which of the following theories would BEST explain this student's cognitive profile?

Accepted Answer

B. Gardner's Multiple Intelligences theory — Gardner's MI theory explicitly recognizes spatial intelligence as a distinct form of intelligence, separate from linguistic or logical-mathematical abilities. Spearman's 'g' factor would suggest these strengths are subsumed under a single general intelligence, while Sternberg's Triarchic Theory focuses on analytical, creative, and practical components, not discrete abilities. Binet's IQ test framework is a measurement tool, not a theory explaining cognitive profiles.

Answer

A. Spearman's two-factor theory

Answer

C. Sternberg's Triarchic Theory

Answer

D. Binet's IQ test framework

Question 8

The Malabar Rebellion of 1921 was led by:‌​‍

Accepted Answer

Variyankunnathu Kunjahammed Haji — Variyankunnathu Kunjahammed Haji was a key leader of the Malabar Rebellion (1921), an anti-British uprising influenced by the Khilafat movement.‌​‍

Answer

Pazhassi Raja

Answer

K. Kelappan

Answer

Velu Thampi Dalawa

Question 9

Amit Shah constituency:‌​‍

Accepted Answer

Gandhinagar — Gandhinagar, Gujarat.‌​‍

Answer

Ahmedabad East

Answer

Rajkot

Answer

Vadodara

Question 10

The Indian rupee symbol (₹) was adopted in:‌​‍

Accepted Answer

2010 — ₹ designed by Udaya Kumar Dharmalingam, adopted on 15 July 2010.‌​‍

Answer

2016

Answer

2014

Answer

2005

LGS Mixed Practice Test #78