#1. Which of the following institutes drafted the Legal Metrology (IST) Rules, 2025?

National Physical Laboratory

Physical Research Laboratory

Central Scientific Instruments Organisation

National Institute for Interdisciplinary Science and Technology

Sol.

Aiming towards ‘One Nation, One Time’ and achieving precision in Indian Standard Time (IST), the Department of Consumer Affairs, Government of India has undertaken a project in association with National Physical Laboratory (NPL) and India Space Research Organisation (ISRO) to disseminate IST with millisecond to microsecond accuracy. The project aims to create technology and infrastructure to disseminate IST from five Legal Metrology laboratories across India.

The Legal Metrology (Indian Standard Time) Rules, 2025 were drafted by the National Physical Laboratory (NPL). NPL functions under the Council of Scientific and Industrial Research (CSIR) and is the national timekeeper of India. It is responsible for maintaining Indian Standard Time (IST) and plays a central role in time dissemination and standardization.

The other institutions listed are not involved in this domain:

Physical Research Laboratory (PRL) primarily deals with space and atmospheric sciences.
Central Scientific Instruments Organisation (CSIO) focuses on scientific instrumentation.
National Institute for Interdisciplinary Science and Technology (NIIST) is engaged in multidisciplinary scientific research but not in timekeeping or legal metrology.

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#2. Match List I with List II:
List-I (ICFRE Centre) — List-II (Place)
(a) IWST — (i) Hyderabad
(b) IFB — (ii) Jorhat
(c) IFR — (iii) Bengaluru
(d) RFRI — (iv) Ranchi
Choose the correct answer from the options given below:
a b c d

(ii) (iv) (i) (iii)

(i) (iii) (iv) (ii)

(iii) (i) (iv) (ii)

(iii) (iv) (i) (ii)

#3. Match List I with List II:
List-I (Function) — List-II (Part of digestive canal)
(a) Absorption of food — (i) Stomach
(b) Killing of bacteria — (ii) Large intestine
(c) Chewing of food — (iii) Small intestine
(d) Formation of faeces — (iv) Buccal cavity
Choose the correct answer from the options given below:
a b c d

iii, i, iv, ii

i, iii, ii, iv

iii, iv, ii, i

iii, ii, i, iv

#4. A tadpole develops into an adult frog by the process of:

Fertilisation

Metamorphosis

Embedding

Budding

#5. Given below are two statements:
Statement I: Magnetite is a natural magnet.
Statement II: A freely suspended magnet always aligns in N–S direction.
In the light of the above statements, choose the most appropriate answer from the options given below:

Both Statement I and Statement II are correct

Both Statement I and Statement II are incorrect

Statement I is correct and Statement II is incorrect

Statement I is incorrect and Statement II is correct

#6. Given below are two statements:
Statement I: The mass of an object is a measure of its inertia.
Statement II: Force of friction always opposes motion of objects.
In the light of the above statements, choose the most appropriate answer from the options given below:

Both Statement I and Statement II are correct

Both Statement I and Statement II are incorrect

Statement I is correct and Statement II is incorrect

Statement I is incorrect and Statement II is correct

#7. Arrange the following substances in increasing order of their pH value:
Gastric Juice
Milk of Magnesia
Lemon Juice
Pure Water
Choose the correct answer from the options given below:

(1), (2), (3), (4)

(4), (3), (2), (1)

(3), (4), (1), (2)

(1), (3), (4), (2)

#8. What is the audible range of sound for the average human ear?

20 Hz to 20 kHz

0 Hz to 20 Hz

20 kHz to 50 kHz

50 kHz to 1 MHz

#9. Consider the following statements:
1.A concave mirror always forms a real image.
2. A real image cannot be obtained on a screen.
3. A concave lens always forms a virtual image.
4. White light is composed of seven colours.
Choose the correct answer from the options given below:

(1) and (2) only

(2) and (4) only

(3) and (4) only

(1) and (3) only

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HAS Previous Year Question Paper 2025 –Science and Technology

Results

#1. Which of the following institutes drafted the Legal Metrology (IST) Rules, 2025?

#2. Match List I with List II:
List-I (ICFRE Centre) — List-II (Place)
(a) IWST — (i) Hyderabad
(b) IFB — (ii) Jorhat
(c) IFR — (iii) Bengaluru
(d) RFRI — (iv) Ranchi
Choose the correct answer from the options given below:
a b c d

#4. A tadpole develops into an adult frog by the process of:

#5. Given below are two statements:
Statement I: Magnetite is a natural magnet.
Statement II: A freely suspended magnet always aligns in N–S direction.
In the light of the above statements, choose the most appropriate answer from the options given below:

#6. Given below are two statements:
Statement I: The mass of an object is a measure of its inertia.
Statement II: Force of friction always opposes motion of objects.
In the light of the above statements, choose the most appropriate answer from the options given below:

#7. Arrange the following substances in increasing order of their pH value:
Gastric Juice
Milk of Magnesia
Lemon Juice
Pure Water
Choose the correct answer from the options given below:

#8. What is the audible range of sound for the average human ear?

#9. Consider the following statements:
1.A concave mirror always forms a real image.
2. A real image cannot be obtained on a screen.
3. A concave lens always forms a virtual image.
4. White light is composed of seven colours.
Choose the correct answer from the options given below:

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HAS Previous Year Question Paper 2025 –Science and Technology

Results

#1. Which of the following institutes drafted the Legal Metrology (IST) Rules, 2025?

#2. Match List I with List II: List-I (ICFRE Centre) — List-II (Place) (a) IWST — (i) Hyderabad (b) IFB — (ii) Jorhat (c) IFR — (iii) Bengaluru (d) RFRI — (iv) Ranchi Choose the correct answer from the options given below: a b c d

#4. A tadpole develops into an adult frog by the process of:

#5. Given below are two statements: Statement I: Magnetite is a natural magnet. Statement II: A freely suspended magnet always aligns in N–S direction. In the light of the above statements, choose the most appropriate answer from the options given below:

#6. Given below are two statements: Statement I: The mass of an object is a measure of its inertia. Statement II: Force of friction always opposes motion of objects. In the light of the above statements, choose the most appropriate answer from the options given below:

#7. Arrange the following substances in increasing order of their pH value:Gastric Juice Milk of Magnesia Lemon Juice Pure Water Choose the correct answer from the options given below:

#8. What is the audible range of sound for the average human ear?

#9. Consider the following statements: 1.A concave mirror always forms a real image. 2. A real image cannot be obtained on a screen. 3. A concave lens always forms a virtual image. 4. White light is composed of seven colours. Choose the correct answer from the options given below:

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Looking for More Resources?

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#2. Match List I with List II:
List-I (ICFRE Centre) — List-II (Place)
(a) IWST — (i) Hyderabad
(b) IFB — (ii) Jorhat
(c) IFR — (iii) Bengaluru
(d) RFRI — (iv) Ranchi
Choose the correct answer from the options given below:
a b c d

#5. Given below are two statements:
Statement I: Magnetite is a natural magnet.
Statement II: A freely suspended magnet always aligns in N–S direction.
In the light of the above statements, choose the most appropriate answer from the options given below:

#6. Given below are two statements:
Statement I: The mass of an object is a measure of its inertia.
Statement II: Force of friction always opposes motion of objects.
In the light of the above statements, choose the most appropriate answer from the options given below:

#7. Arrange the following substances in increasing order of their pH value:
Gastric Juice
Milk of Magnesia
Lemon Juice
Pure Water
Choose the correct answer from the options given below:

#9. Consider the following statements:
1.A concave mirror always forms a real image.
2. A real image cannot be obtained on a screen.
3. A concave lens always forms a virtual image.
4. White light is composed of seven colours.
Choose the correct answer from the options given below: