TGPSC MPSO / ASO · Paper I · Topic 3
TGPSC MPSO / ASO General Science & Technology questions with answers
10 questions from TGPSC ASO Paper I Mock 1 with answers. Try each one, then tap Show answer.
3.1Physics in daily lifeNotesPractise this chapter · Set 1 free
-
Consider the following statements about levers:
1. In a Class II lever the load lies between the fulcrum and the effort, so its mechanical advantage is always greater than 1.
2. A Class III lever, such as a pair of fire tongs, always has a mechanical advantage greater than 1.
Which of the statements given above is/are correct?
Show answerHide answer
Answer A. 1 only
In a Class II lever the effort arm is always longer than the load arm, so MA > 1. In a Class III lever the effort lies between fulcrum and load, so the effort arm is shorter and MA < 1; it gains speed or reach, not force.
-
An eye doctor prescribes spectacles of power -2.0 D. Which of the following correctly describes the lens?
Show answerHide answer
Answer D. Concave lens of focal length 50 cm, for myopia
Power P = 1/f (f in metres), so f = 1/(-2) = -0.5 m = -50 cm. A negative power means a concave (diverging) lens, which is used to correct myopia.
Source: NCERT Class 10 Science, Light: Reflection and Refraction
-
Which of the following pairs is NOT correctly matched?
Show answerHide answer
Answer D. Waves used by bats to navigate - Infrasound
Bats emit and detect ultrasonic waves (above 20 kHz) to locate obstacles and prey, not infrasound.
Source: NCERT Class 9 Science, Sound
3.2Chemistry in daily lifeNotesPractise this chapter · Set 1 free
-
Consider the following statements:
1. Bakelite can be softened by heating and remoulded again and again.
2. Polythene and PVC are thermoplastics.
Which of the statements given above is/are correct?
Show answerHide answer
Answer B. 2 only
Polythene and PVC soften on heating and can be reshaped, so they are thermoplastics. Bakelite is a thermosetting plastic: once moulded it cannot be softened again by heating.
Source: NCERT Class 8 Science ch.3
-
Consider the following statements:
1. Iron rusts only when both air (oxygen) and water are present.
2. Rusting of iron is a physical change.
Which of the statements given above is/are correct?
Show answerHide answer
Answer A. 1 only
Iron nails kept in dry air or in boiled (air-free) water do not rust; both oxygen and moisture are needed. Rust is a new substance (hydrated iron(III) oxide), so rusting is a chemical change.
Source: NCERT Class 10 Science ch.3
3.3Biology, human body & healthNotesPractise this chapter · Set 1 free
-
Match List I (vitamin) with List II (deficiency disease):
List I:
- A. Thiamine (B1)
- B. Niacin (B3)
- C. Vitamin D
- D. Vitamin A
List II:
- 1. Rickets
- 2. Pellagra
- 3. Night blindness
- 4. Beriberi
Show answerHide answer
Answer A. A-4, B-2, C-1, D-3
Thiamine deficiency causes beriberi, niacin deficiency pellagra, vitamin D deficiency rickets and vitamin A deficiency night blindness.
Source: NCERT Class 6 Science ch.2; standard nutrition texts
-
Pulse pressure is the difference between systolic and diastolic blood pressure. If a healthy adult's blood pressure is 120/80 mm Hg, what is the pulse pressure?
Show answerHide answer
Answer C. 40 mm Hg
In the reading 120/80 mm Hg, 120 is systolic and 80 is diastolic pressure, so pulse pressure = 120 - 80 = 40 mm Hg.
Source: NCERT Class 10 Science, Life Processes (normal blood pressure 120/80 mm Hg); pulse pressure defined in the stem
3.7Space & defence technologyPractise this chapter · Set 1 free
-
Assertion (A): Remote sensing satellites are generally placed in polar sun-synchronous orbits.
Reason (R): A sun-synchronous orbit lets the satellite pass over a place at about the same local solar time, giving similar lighting for images.
Show answerHide answer
Answer A. Both A and R are true and R is the correct explanation of A
Both are true and R explains A: same local time passes give comparable lighting, which suits Earth observation.
Source: NCERT Class 12 India People and Economy p.94
-
Assertion (A): Aditya-L1 has been placed in a halo orbit around the Sun-Earth Lagrange point L1.
Reason (R): A satellite around L1 can view the Sun continuously without any eclipse.
Show answerHide answer
Answer A. Both A and R are true and R is the correct explanation of A
Both are true and R explains A: from L1 the Sun can be observed continuously without occultation or eclipse.
3.10Nuclear & energy technologyNotesPractise this chapter · Set 1 free
-
Assertion (A): India's three-stage nuclear programme aims to use thorium on a large scale in its third stage.
Reason (R): India has large thorium reserves but limited uranium reserves.
Show answerHide answer
Answer A. Both A and R are true and R is the correct explanation of A
Both are true and R explains A: the programme was designed to use India's large thorium reserves because uranium is limited.
Source: DAE three-stage programme; NCERT Class 12 India People and Economy p.71
Practise General Science & Technology chapter by chapter. In the app every chapter is split into numbered sets of 20 questions, easier first, with your score on each set. Set 1 of every chapter is free.
All TGPSC MPSO / ASO topics · TGPSC MPSO / ASO syllabus · Start free
Medha AI is an independent preparation service. It is not affiliated with, endorsed by or connected to APPSC, TGPSC (formerly TSPSC), MPSC, UPSC or any other commission or government body.