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HPSC 2023 — Science & Technology Questions with Answers

All 6 Science & Technology previous-year questions from HPSC 2023, each with the correct answer and a full explanation. Practise them as a free, timed mock test with instant scoring.

1. Q1.Classical Mechanics

   Which of the following statements with reference to uniform linear motion and uniform circular motion is/are TRUE? 1. In a uniform linear motion, a body moves in the same direction with a constant speed but in uniform circular motion, the speed of the body remains constant and the direction of the motion changes continuously. 2. In a uniform linear motion, there is instantaneous change in velocity but in uniform circular motion, the velocity remains the same. 3. A uniform linear motion is an accelerated motion but a uniform circular motion is not an accelerated motion. Choose the correct answer from the options given below:

   • a)2 and 3 only
   • b)3 only
   • c)1 only
   • d)1 and 3 only
   • e)Question not attempted
2. Q2.Classical Mechanics

   Which of the following statement(s) about the freely falling objects is/are FALSE? 1. Freely falling objects are the objects falling from a height towards the earth under gravitational force of the earth. 2. The acceleration of a body falling freely towards the earth depends on the mass of the body. 3. If an object is dropped freely from a height, its initial velocity ‘u’ is zero and if an object is thrown vertically upwards, its final velocity ‘v’ becomes zero. Choose the correct answer from the options given below:

   • a)1 and 3 only
   • b)2 only
   • c)3 only
   • d)2 and 3 only
   • e)Question not attempted
3. Q3.Chemistry in Everyday Life

   Match List I with List II. LIST I (Chemical Compounds) A. Norethindrone B. Alitame C. Cetyltrimethylammonium Bromide D. Phenelzine LIST II (Usage) I. Cationic detergent II. Antifertility drug III. Artificial Sweetener IV. Anti-depressant drug

   • a)A-III, B-II, C-IV, D-I
   • b)A-II, B-III, C-I, D-IV
   • c)A-I, B-IV, C-II, D-III
   • d)A-IV, B-III, C-II, D-I
   • e)Question not attempted
4. Q4.Plant Biology

   Which of the following statements about the Parasite is/are TRUE? 1. Dodder is a plant parasite, which has special sucking roots called haustoria for absorption of food from the host plant. 2. Dodder is a vine-like parasitic plant and is essentially leafless. 3. Many species of Dodder cause weed problems in the horticulture industry. 4. Once the Dodder plant gets attached itself to the host plant it loses its root system. Choose the correct answer from the options given below:

   • a)2 and 4 only
   • b)3 and 4 only
   • c)1, 3 and 4 only
   • d)1, 2, 3 and 4
   • e)Question not attempted
5. Q5.Space Technology

   What is Aditya L-1? Underline the significance of this mission in the field of space science and technology.

6. Q6.Artificial Intelligence

   India's future will be significantly determined by Artificial Intelligence. In the light of this statement, discuss the various initiatives taken by India.