MCS 2029, MCS 2023 & MPS 2023 PYQS
1. Holography has applications in which of the following?
i) Data storage
ii) Prevention of counterfeiting
iii) Destruction of cancerous cells
iv) Detection of kidney stones
Options:
(A) (i) and (ii) only
(B) (ii) and (iv) only
(C) (i), (ii), and (iii) only
(D) (i), (ii), (iii) and (iv)
Answer: (C) (i), (ii), and (iii) only
2. Which of the following is not an ionizing radiation?
(A) Infrared radiation
(B) X-rays
(C) Gamma rays
(D) Cosmic rays
3. The total energy of an electron inside an atom is:
(A) More than zero
(B) Less than zero
(C) Infinite
(D) Zero
4. Lack of atmosphere around the Moon is due to:
(A) Low escape velocity of air molecules and low gravitational attraction
(B) High escape velocity of air molecules and low gravitational attraction
(C) Low gravitational attraction only
(D) High escape velocity of air molecules only
5. When two sound waves of slightly different frequency interfere:
(A) Noise is produced
(B) Beats are produced
(C) Resonance
(D) Non-linear effects
6. The best colours for a sun umbrella would be:
(A) Black on top and red on inside
(B) Black on top and white on inside
(C) Red on top and black on inside
(D) White on top and black on inside
7. Red light is used in traffic signals for stopping traffic because:
(A) Eye is more sensitive to red light
(B) It is least scattered and hence can be easily noticed from a long distance
(C) It is very pleasant to the eye
(D) It is visible even to the longsighted people
8. What is “Saraswati” found recently in the news?
(A) River linking project of the Government of India
(B) Super cluster of galaxies
(C) An award in the field of classical music
(D) Education project of the Government of India
9. Primary gold is gold of:
(A) 24 carat
(B) 23 carat
(C) 22 carat
(D) 18 carat
10. Consider the following statements regarding diamond:
i) It is an allotrope of silicon
ii) It is a bad conductor of heat and electricity
iii) It is the hardest substance
iv) It burns to produce carbon dioxide
(A) (i), (ii), (iii) and (iv)
(B) (ii), (iii) and (iv) only
(C) (i) and (ii) only
(D) (i), (iii) and (iv) only
11. Glycol is added to aviation gasoline because it:
(A) Reduces evaporation of petrol
(B) Increases efficiency of petrol
(C) Prevents freezing of petrol
(D) Reduces consumption of petrol
12. A plant leaf appears to be green because it:
(A) Absorbs green light
(B) Reflects all but yellow and blue light
(C) Reflects green light
(D) Absorbs red and yellow light
13. While managing a mass disaster, the term “triage” applies to:
(A) The principle of “first come, first treated”
(B) Classification based on severity to treat the most seriously injured first
(C) Classification based on severity with the concept of treatment first
(D) Classification based on severity with the concept of treating those first who are likely to survive with medical intervention
14. Birds like Flamingos can stand on one leg. Which of the following statements is/are correct?
i) By standing on one leg Flamingos can conserve body heat and energy
ii) By standing on one leg, one Flamingo makes a courtship display
(A) (i) only
(B) (ii) only
(C) Both (i) and (ii)
(D) Neither (i) nor (ii)
15. Graves’ disease is caused due to:
(A) Hyperactivity of thyroid
(B) Hypoactivity of thymus
(C) Hypoactivity of thyroid
(D) Hyperactivity of thymus
16. Darwin’s finches refers to a group of:
(A) Fishes
(B) Lizards
(C) Birds
(D) Amphibians
17. In the cells of living organisms, other than the nucleus, which of the following organelles contains DNA?
(A) Cell membrane
(B) Endoplasmic reticulum
(C) Golgi bodies
(D) Mitochondria
18. Genetic screening is:
(A) Analysis of DNA to check the presence of a particular gene in a person
(B) Analysis of gene in a population
(C) Pedigree analysis
(D) Screening of infertility in parents
19. Regarding multidrug-resistant TB, which of the following is correct?
i) It is higher among children
ii) It does not respond to ordinary TB treatment
iii) It is caused by a virus
(A) (i), (ii), (iii)
(B) (ii), (iii)
(C) (i), (ii)
(D) (i), (iii)
20. “Antara” is:
(A) Free funeral service
(B) Classical music renovation project
(C) Injectable contraceptive programme
(D) Distance learning mode
21. Which of the following with respect to “Kalvari” is/are correct?
i) It is a Scorpene-class submarine
ii) It is the first of its kind handed over to the Indian Navy by Mazagon Dock Limited
iii) It is named after the tiger shark
iv) It is part of the ambitious Project 75 of the Indian Navy’s submarine programme
(A) (i) and (ii)
(B) (i), (ii) and (iii)
(C) (i), (iii) and (iv)
(D) (i), (ii), (iii) and (iv)
22. In which state was an indigenously developed lightweight “glide” bomb successfully tested in India?
(A) Odisha
(B) Gujarat
(C) Maharashtra
(D) West Bengal
23. What is THAAD?
(A) Anti-ballistic missile defence system
(B) Satellite launch vehicle
(C) Satellite
(D) Unmanned aerial vehicle
24. “Muntra” is:
(A) Unmanned tank
(B) Scheme for musicians
(C) Magnetically levitated train
(D) Health portal
25. A man was trapped in a room of a building which was up in flames. Once the injured person is out, he should be observed/treated immediately for:
(A) Superficial burn wound
(B) Electric burn wound
(C) Respiratory burn
(D) Internal organ injury
26. Which of the following are degenerative nerve diseases?
i) Amyotrophic lateral sclerosis
ii) Parkinson’s disease
iii) Alzheimer’s disease
(A) (i) only
(B) (i) and (ii) only
(C) (ii) and (iii) only
(D) All of the above
27. With reference to COVID-19, which of the following strains of the virus were considered highly contagious and potentially life-threatening?
(A) Alpha
(B) Beta
(C) Gamma
(D) Delta
28. Xenophobia is associated with which of the following?
(A) Fear of crowds
(B) Fear of strangers
(C) Fear of flying
(D) Fear of heights
29. Consider the following statements about enzymes:
i) Enzymes are proteins made from amino acids stringed together in a very specific and unique order.
ii) Enzymes are sensitive to acidity and alkalinity but not to temperature.
iii) Trypsin is a type of enzyme produced in the stomach.
(A) (i) only
(B) (i) and (ii) only
(C) (ii) and (iii) only
(D) (i), (ii) and (iii)
30. Beriberi is a disease caused as a result of deficiency of:
(A) Cyanocobalamin
(B) Riboflavin
(C) Thiamine
(D) Retinol
Answer: (C) Thiamine [/answer]
32. The common glass used in making windows, bottles and jars is known as:
(A) Quartz glass
(B) Soda-lime glass
(C) Pyrex glass
(D) Fibre glass
33. The browning of proteins when exposed to heat is a result of:
(A) Maillard reaction
(B) Protein bonding
(C) Caramelization
(D) Protein denaturation
34. Which acid is predominantly present in tomatoes?
(A) Tartaric acid
(B) Malonic acid
(C) Acetic acid
(D) Oxalic acid
35. Consider the following statements regarding RTIS (Real-Time Train Information System):
i) It is a joint collaboration between Indian Railways and Information Technology Development Agency.
ii) It comprises GPS Aided Geo-Augmented Navigation System (GAGAN).
iii) Using this technology, train control will be able to track the speed of RTIS-enabled trains more closely without manual intervention.
(A) (i) only
(B) (i) and (ii) only
(C) (ii) and (iii) only
(D) (ii) only
36. Which of the following are associated with Web 3.0?
i) Smart applications
ii) Live-streams
iii) Semantic Web
iv) Blockchain services
(A) (i), (ii) and (iv) only
(B) (i), (ii) and (iii) only
(C) (i), (iii) and (iv) only
(D) (i), (ii), (iii) and (iv)
37. Consider the following communication technologies:
i) Closed-Circuit Television
ii) Radio Frequency Identification (RFID)
iii) Wireless Local Area Network (WLAN)
Which of the above are considered short-range devices/technologies?
(A) (i) and (ii) only
(B) (ii) and (iii) only
(C) (i) and (iii) only
(D) (i), (ii) and (iii)
38. A browser is a:
(A) A line that delineates the edges of a programme window
(B) Software programme especially designed for viewing webpages on the Internet
(C) Tool for resizing the window
(D) Device used for modifying the window
39. The Indian Army, along with which institution, flight-tested the Quick Reaction Surface-to-Air Missile (QRSAM) system?
(A) ISRO
(B) DRDO
(C) BDL
(D) HAL
40. In the context of vaccines manufactured to prevent the COVID-19 pandemic, consider the following statements:
i) The Serum Institute of India produced the COVID-19 vaccine Covishield using the mRNA platform.
ii) Sputnik V vaccine is manufactured using a vector-based platform.
iii) COVAXIN is an inactivated pathogen-based vaccine.
(A) (i) and (ii) only
(B) (ii) and (iii) only
(C) (i) and (iii) only
(D) (i), (ii) and (iii)
41. Libra refers to:
(A) Spacecraft
(B) Cryptocurrency
(C) Marine exploration
(D) Satellite
42. Consider the following statements with respect to NAVIC:
i) It is an Indian Regional Navigation Satellite System (IRNSS), developed by ISRO.
ii) It consists of eight satellites, of which five satellites are in geostationary orbit and three satellites are in geosynchronous orbit.
iii) The objective of NAVIC is to provide navigation, timing and reliable positioning services in and around India.
(A) (i) and (ii)
(B) (i) and (iii)
(C) (ii) and (iii)
(D) (i), (ii) and (iii)
43. Which of the following is a cruise missile?
(A) Prithvi
(B) Agni
(C) BrahMos
(D) Dhanush
44. Which of the following statements are true with respect to colours?
i) A tint is a mixture of a colour with white, which reduces darkness.
ii) A shade is a mixture of a colour with black, which increases darkness.
(A) (i) only
(B) (ii) only
(C) Both (i) and (ii)
(D) Neither (i) nor (ii)
45. Identify the disease which causes the body to be unable to absorb or deposit calcium due to lack of vitamin D:
(A) Rickets
(B) Scurvy
(C) Pellagra
(D) Beriberi
46. Consider the following statements regarding biofuels:
i) First-generation biofuels are made from sugar, starch, vegetable oils and animal fats.
ii) Second-generation biofuels are produced from microorganisms like algae.
iii) Third-generation biofuels are from food crops and waste biomass.
(A) (i) only
(B) (i) and (ii)
(C) (i) and (iii)
(D) (ii) only
47. Which of the following are properties of lithium-ion batteries?
i) High energy density
ii) Rechargeable
iii) No memory effect
iv) Low self-discharge
(A) (i) and (ii)
(B) (ii) only
(C) (iii) only
(D) All of (i), (ii), (iii) and (iv)
48. Consider the following statements regarding COVID-19:
i) It belongs to a large family of viruses such as Middle East Respiratory Syndrome (MERS-CoV) and Severe Acute Respiratory Syndrome (SARS-CoV).
ii) It was first identified in Hunan Province of India.
iii) COVID-19 is a new strain that had not been previously identified in humans.
(A) (i) only
(B) (i) and (ii)
(C) (i) and (iii)
(D) (i), (ii) and (iii)
49. Which of the following statements are true?
i) Convex mirrors are used for outside rear-view mirrors in vehicles.
ii) Convex mirrors produce an enlarged image of the object.
(A) (i) only
(B) (ii) only
(C) Both (i) and (ii)
(D) Neither (i) nor (ii)
50. Which of the following are examples of capillarity?
i) Drawing of ink to the nib
ii) Insects walking on water
iii) Absorption of sweat from skin by fabrics
iv) Blotting paper
(A) (i) and (ii) only
(B) (i) and (iii) only
(C) (i), (iii) and (iv) only
(D) (ii) and (iv) only
51. Which of the following statements is false with regard to earthquakes?
(A) S-waves are quicker than P-waves
(B) P-waves are recorded first on the seismograph
(C) P-waves are longitudinal in nature
(D) S-waves are transverse in nature
52. Which lamp has the highest energy efficiency?
(A) Incandescent lamp
(B) LED lamp
(C) CFL
(D) Arc lamp