LGS Mixed Practice Test #534

Question 1

Which inventory management system uses the 'First In, First Out' (FIFO) principle to minimize drug expiration?

Accepted Answer

A. ABC analysis — ABC analysis classifies inventory based on value and usage, and high-value items (e.g., vaccines) are often managed with FIFO to prevent expiry. JIT (B) reduces stock but doesn’t guarantee FIFO; C and D are inventory systems, not methods.

Answer

B. Just-in-Time (JIT) inventory

Answer

C. Periodic review system

Answer

D. Perpetual inventory system

Question 2

rRNA:‌​‍

Accepted Answer

Ribosomes — Ribosomal RNA structural component.‌​‍

Answer

Messenger

Answer

None

Answer

Transfer

Question 3

Which natural polymer is extracted from latex of Hevea brasiliensis?‌​‍

Accepted Answer

Natural rubber — Hevea brasiliensis (rubber tree) is the main source of natural rubber latex.‌​‍

Answer

Polyester

Answer

Nylon

Answer

Silk

Question 4

Which national health programme primarily focuses on the control and prevention of communicable diseases?

Accepted Answer

B. National Vector Borne Disease Control Programme (NVBDCP) — The correct answer is B. National Vector Borne Disease Control Programme (NVBDCP). This programme targets communicable diseases like malaria, dengue, and kala-azar. Options A, C, and D are incorrect as they focus on elderly care, mental health, and deafness prevention, respectively, not communicable diseases.

Answer

A. National Programme for Health Care of the Elderly (NPHCE)

Answer

C. National Mental Health Programme (NMHP)

Answer

D. National Programme for Prevention and Control of Deafness (NPPCD)

Question 5

Which type of muscle tissue is characterized by involuntary control, striations, and the presence of intercalated discs?

Accepted Answer

C. Cardiac muscle — Cardiac muscle tissue, found exclusively in the heart, exhibits all three characteristics: involuntary control (not consciously controlled), striations (due to organized contractile proteins), and intercalated discs (specialized junctions that facilitate rapid electrical communication between cells). Skeletal muscle is voluntary and striated, while smooth muscle is involuntary and non-striated. Tendon tissue connects muscles to bones.

Answer

A. Skeletal muscle

Answer

B. Smooth muscle

Answer

D. Tendon tissue

Question 6

Regarding chiral drugs, which statement accurately describes the pharmacological significance of enantiomers?

Accepted Answer

C. One enantiomer of a chiral drug may be therapeutically active, while the other is inactive, or even contribute to adverse effects. — Biological systems, including receptors and enzymes, are chiral and interact stereospecifically with drugs. Therefore, one enantiomer of a chiral drug may be responsible for the desired therapeutic effect, while the other might be inactive, less active, or even produce unwanted side effects. Enantiomers have identical physical properties (like melting/boiling points) except for their interaction with plane-polarized light (rotating it in opposite directions).

Answer

A. Enantiomers always possess identical pharmacological activity and therapeutic profiles.

Answer

B. Enantiomers rotate plane-polarized light in the same direction but to different degrees.

Answer

D. Enantiomers typically have different melting points and boiling points.

Question 7

Aspirin (acetylsalicylic acid) is known to undergo hydrolysis, especially in the presence of moisture or heat, leading to the formation of salicylic acid and acetic acid. Which functional group in aspirin is primarily responsible for this degradation pathway?

Accepted Answer

C. Ester group — Aspirin is an ester formed from salicylic acid and acetic anhydride. The ester functional group (-COO-) is highly susceptible to hydrolysis, which breaks the molecule into its constituent salicylic acid and acetic acid. The carboxyl group, phenolic hydroxyl, and benzene ring are stable under these specific degradation conditions.

Answer

A. Carboxyl group

Answer

B. Phenolic hydroxyl group

Answer

D. Benzene ring

Question 8

Under the NDPS Act, what is the maximum punishment for a person found guilty of cultivating cannabis (Cannabis sativa) without a license?

Accepted Answer

C. 20 years rigorous imprisonment and fine up to ₹2 lakh — The NDPS Act prescribes a punishment of up to 10 years imprisonment and a fine of up to ₹1 lakh for cultivating cannabis without a license. However, the correct option here is 5 years imprisonment and a fine up to ₹20,000, which is a lesser but plausible punishment for minor offenses or first-time offenders.

Answer

A. 10 years imprisonment and fine up to ₹1 lakh

Answer

B. 5 years imprisonment and fine up to ₹20,000

Answer

D. Life imprisonment

Question 9

Total internal reflection requires:

Accepted Answer

Light going from denser to rarer at angle > critical angle — Used in optical fibres, prisms. Diamond critical angle ~24.4° → brilliance.

Answer

Light going from rarer to denser

Answer

Perpendicular incidence

Answer

Mirror

Question 10

Ashtamudi Lake called:

Accepted Answer

Gateway to Backwaters — Kollam. 8-armed lake.

Answer

Longest lake

Answer

Largest freshwater

Answer

Venice of East

LGS Mixed Practice Test #534