DCOA Mixed Practice Test #205

Question 1

Which of the following elements has the highest first ionization energy in the periodic table?

Accepted Answer

A. Helium (He) — Helium (He) has the highest first ionization energy because it is a noble gas with a completely filled electron shell, making it extremely difficult to remove an electron. While Fluorine (F) has a high ionization energy, it is slightly lower than Helium's due to its smaller atomic radius and higher electron affinity.

Answer

B. Fluorine (F)

Answer

C. Neon (Ne)

Answer

D. Chlorine (Cl)

Question 2

P. Bhaskaran:‌​‍

Accepted Answer

Film lyricist, director — Neelakuyil director, lyricist.‌​‍

Answer

Actor

Answer

Novelist only

Answer

Politician

Question 3

Ayyankali was born in:‌​‍

Accepted Answer

1863 — Ayyankali born 28 August 1863 at Venganoor, Thiruvananthapuram.‌​‍

Answer

1856

Answer

1873

Answer

1878

Question 4

The Roman Republic was founded in:

Accepted Answer

509 BCE — Rome founded 753 BCE (traditional), kingdom → Republic 509 BCE (overthrow of Tarquin) → Empire 27 BCE (Augustus).

Answer

753 BCE

Answer

44 BCE

Answer

27 BCE

Question 5

Nvidia stock surge reason:‌​‍

Accepted Answer

AI chip demand — AI boom.‌​‍

Answer

Gaming

Answer

Crypto

Answer

Auto

Question 6

Which component of the body's innate immunity provides the first line of defense against bacterial entry through skin abrasions?

Accepted Answer

B. Lysozyme in sweat and tears — Lysozyme in sweat and tears is part of the innate immune system and acts as a first-line defense by breaking down bacterial cell walls. The complement system, interferons, and phagocytes are also part of innate immunity but act later or are not the primary barrier at skin abrasions.

Answer

A. Complement system

Answer

C. Interferons

Answer

D. Phagocytes in tissues

Question 7

Power is related to voltage and resistance as:‌​‍

Accepted Answer

P = V² / R — P = VI = V × V/R = V²/R (using I = V/R).‌​‍

Answer

P = V/R

Answer

P = V/R²

Answer

P = V × R

Question 8

KITE Kerala:‌​‍

Accepted Answer

Infrastructure for IT in Education — Govt edu-tech agency.‌​‍

Answer

None

Answer

Both

Answer

Kerala IT Enterprise

Question 9

USSR officially dissolved on:‌​‍

Accepted Answer

25 December 1991 — Gorbachev resigned as Soviet President 25 Dec 1991; USSR flag lowered over Kremlin. ‌​‍15 republics became independent states.

Answer

1945

Answer

1985

Answer

1989

Question 10

At the end of the academic year, students in a Kerala PSC HSA preparation course take a comprehensive model examination designed to evaluate their overall understanding of the syllabus and readiness for the actual exam. The results are used to assign final grades and determine qualification. This assessment best represents:

Accepted Answer

C. Summative Assessment — Summative assessment occurs at the end of a learning period to evaluate overall achievement and assign grades, much like an annual or final examination. Formative assessment provides ongoing feedback, continuous assessment is a broader term often encompassing formative, and diagnostic assessment identifies learning difficulties at the beginning or during a unit.

Answer

A. Formative Assessment

Answer

B. Continuous Assessment

Answer

D. Diagnostic Assessment

DCOA Mixed Practice Test #205