LGS Mixed Practice Test #439

Question 1

Father of taxonomy:

Accepted Answer

Linnaeus — Carolus Linnaeus.

Answer

Darwin

Answer

Mendel

Answer

Aristotle

Question 2

Petroleum is separated into fractions based on:‌​‍

Accepted Answer

Different boiling points — Petroleum fractions: gasoline (low BP), naphtha, kerosene, diesel, fuel oil, bitumen (high BP).‌​‍

Answer

Density only

Answer

Colour

Answer

Viscosity

Question 3

In CCE, which assessment type is used to evaluate a student's performance in co-curricular activities like sports and arts?

Accepted Answer

D. Non-scholastic assessment — Non-scholastic assessment in CCE evaluates life skills, attitudes, interests, and co-curricular activities like sports, arts, and work experience. Summative and formative assessments focus on scholastic subjects, while non-scholastic assessment covers these additional domains.

Answer

A. Summative assessment

Answer

B. Formative assessment

Answer

C. Scholastic assessment

Question 4

Saponin glycosides are known for their characteristic property of forming a stable froth when shaken with water. This property is primarily attributed to their:

Accepted Answer

B. Ability to lower surface tension of water due to their amphiphilic nature. — Saponins are amphiphilic glycosides, meaning they possess both hydrophilic (sugar) and lipophilic (aglycone) parts. This structure allows them to act as surfactants, effectively lowering the surface tension of water and enabling the formation of a stable, persistent froth. The other options do not accurately describe the chemical basis for the frothing property of saponins.

Answer

A. High molecular weight and complex sugar moieties.

Answer

C. Strong acidic properties, leading to effervescence.

Answer

D. Interaction with proteins, causing denaturation and foam formation.

Question 5

ഒരു മലയാളം അധ്യാപിക 'കഥാരചന' (story writing) കഴിവ് വിലയിരുത്തുമ്പോൾ താഴെ പറയുന്നവയിൽ ഏതിനാണ് ഏറ്റവും കുറഞ്ഞ പ്രാധാന്യം നൽകേണ്ടത്?

Accepted Answer

C. വ്യാകരണപരമായ പിഴവുകളുടെ എണ്ണം — കഥാരചനയുടെ വിലയിരുത്തലിൽ, സർഗ്ഗാത്മകത, ഭാവന, കഥയുടെ ഒഴുക്ക്, കഥാപാത്രങ്ങളുടെ വികസനം, ഘടന എന്നിവയ്ക്കാണ് മുൻഗണന നൽകേണ്ടത്. വ്യാകരണപരമായ പിഴവുകൾ പ്രധാനമാണെങ്കിലും, അവയുടെ എണ്ണം മാത്രം നോക്കി സർഗ്ഗാത്മകമായ എഴുത്തിനെ നിരുത്സാഹപ്പെടുത്തുന്നത് ഉചിതമല്ല. എഴുത്തിന്റെ ആദ്യഘട്ടങ്ങളിൽ ആശയങ്ങൾക്കും ഒഴുക്കിനും കൂടുതൽ പ്രാധാന്യം നൽകണം.

Answer

A. കഥയുടെ ഒഴുക്കും ഭാവനയും

Answer

B. കഥാപാത്രങ്ങളുടെ വികസനം

Answer

D. കഥയുടെ ഘടനയും ക്രമീകരണവും

Question 6

India's first Dark Sky Reserve is located at:‌​‍

Accepted Answer

Ladakh (Hanle) — Hanle in Ladakh was designated India's first Dark Sky Reserve for astronomical observation.‌​‍

Answer

Sikkim

Answer

Uttarakhand

Answer

Himachal Pradesh

Question 7

A teacher regularly uses quick quizzes, observation during group work, and informal feedback sessions during a unit to help students understand where they are struggling and to adjust her teaching methods. This approach primarily exemplifies which type of assessment?

Accepted Answer

C. Formative assessment — Formative assessment is designed to monitor student learning during instruction and provide ongoing feedback that can be used by instructors to improve their teaching and by students to improve their learning. Quick quizzes, observation, and informal feedback are all characteristic tools for formative assessment, aiming for continuous improvement rather than final judgment. Summative assessment is given at the end, diagnostic is before instruction, and norm-referenced compares to a group.

Answer

A. Summative assessment

Answer

B. Diagnostic assessment

Answer

D. Norm-referenced assessment

Question 8

Elasticity's physical basis is:‌​‍

Accepted Answer

Interatomic forces — Atoms return to equilibrium separation after small deformation. ‌​‍Larger force → plastic deformation or fracture.

Answer

Gravity

Answer

Thermal motion

Answer

Magnetism

Question 9

The 'Drain of Wealth' theory was a significant economic critique of British rule in India. Which of the following accurately describes a key aspect of this theory?

Accepted Answer

B. It posited that the high salaries of British officials and pensions paid from Indian revenues constituted a unilateral transfer of wealth. — The Drain of Wealth theory, primarily articulated by Dadabhai Naoroji, argued that a portion of India's national wealth was being siphoned off to Britain without adequate economic returns. This included the salaries and pensions of British officials, profits of British companies, and home charges. Options A, C, and D describe scenarios contrary to the realities of British economic exploitation, which primarily served imperial interests, manipulated trade to Britain's advantage, and restricted Indian industry.

Answer

A. It argued that British investments in infrastructure like railways primarily benefited Indian capitalists.

Answer

C. It highlighted the equitable trade balance between India and Britain, which favored Indian exports.

Answer

D. It emphasized the benefits of free trade, which allowed Indian goods to compete globally without tariffs.

Question 10

Boston Tea Party (1773) was:

Accepted Answer

American colonists dumped British East India Company tea into Boston Harbor to protest taxes — Sons of Liberty (Samuel Adams) dumped 342 tea chests on 16 December 1773. Protest against Tea Act — 'no taxation without representation.' Escalated to Revolution.

Answer

A celebration

Answer

Japanese tea ceremony

Answer

British holiday

LGS Mixed Practice Test #439