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Question 1025

Who invented ATM ?

ALuther George Simjian

BJhon Shepherd Barron

CDouglas Brown

DNone of these

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B. Jhon Shepherd BarronExplanation: The ATM (Automated Teller Machine) was invented by John Shepherd-Barron in 1967. He designed the first cash dispensing machine, which was installed by Barclays Bank in London, UK. The first ATM used special paper vouchers impregnated with a radioactive compound instead of plastic cards. The idea revolutionized the banking sector by allowing people to withdraw money anytime without visiting a bank counter. Modern ATMs now use magnetic or chip-based cards, PIN authentication, and networked systems for secure transactions.

Question 1024

In which part of the human body carpal bones are found ?

AWrist

BFemur

CNeck

DNone of these

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A. WristExplanation: Carpal bones are the eight small bones that make up the wrist (also known as the carpus) in the human skeletal system. These bones are arranged in two rows — a proximal row (closer to the forearm) and a distal row (closer to the hand). They connect the bones of the forearm (radius and ulna) to the bones of the hand (metacarpals) and allow for the flexibility and movement of the wrist. The carpals are essential for various hand motions like bending, rotation, and gripping.

Question 1023

What does 'GM' stand for in GM food?

AGenerally modified

BGenetically modified

CGenetically medicated

DNone of these

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B. Genetically modifiedExplanation: In GM food, the term GM stands for Genetically Modified. These are foods produced from organisms (plants or animals) whose genetic material (DNA) has been altered using modern biotechnology or genetic engineering techniques. This modification is done to introduce desirable traits such as pest resistance, drought tolerance, higher yield, or improved nutritional value. A common example is Bt cotton, which contains a gene from the bacterium Bacillus thuringiensis that provides resistance to insect pests.

Question 1015

The phenomenon of radioactivity was discovered by:

AMarie Curie

BPierre Curie

CHenri Becquerel

DJ J Thomson

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C. Henri BecquerelExplanation: The phenomenon of radioactivity was discovered by the French physicist Henri Becquerel in 1896. He accidentally discovered that uranium salts emitted invisible rays that could fog photographic plates, even without sunlight. This led to the realization that certain elements spontaneously emit radiations — a property later termed as radioactivity. Subsequently, Marie and Pierre Curie expanded his work and discovered other radioactive elements like polonium and radium.

Question 1006

Which one of the following sets of Elements was primarily responsible for the origin of life on the earth?

AHydrogen, Oxygen, Carbon, Sodium

BOxygen, Carbon, Calcium, Phosphorus

CCarbon, Hydrogen, Oxygen, Nitrogen

DCarbon, Hydrogen, Nitrogen, Potassium

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C. Carbon, Hydrogen, Oxygen, NitrogenExplanation: The elements Carbon (C), Hydrogen (H), Oxygen (O), and Nitrogen (N) — collectively known as CHON — were primarily responsible for the origin of life on Earth. These elements are the basic building blocks of all biological molecules such as proteins, nucleic acids, carbohydrates, and lipids. Early Earth's atmosphere contained these elements in gaseous forms (like CH₄, NH₃, H₂, and H₂O), which combined under lightning and UV radiation to form simple organic compounds — a process explained by the Miller–Urey experiment.

Question 1005

What is the scientific name of Vitamin- C :

ATurtaric Acid

BFolic Acid

CAscorbic Acid

DOxalic Acid

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C. Ascorbic AcidExplanation: The scientific name of Vitamin C is Ascorbic Acid. It is a water-soluble vitamin essential for the growth, repair, and maintenance of body tissues. Vitamin C acts as a powerful antioxidant and helps in the synthesis of collagen, absorption of iron, and boosting the immune system. A deficiency of Vitamin C leads to the disease Scurvy, characterized by bleeding gums, weakness, and delayed wound healing. Natural sources include citrus fruits like oranges, lemons, amla, and guava.

Question 1004

Which of the following is the heaviest ?

AProton

BElectron

CNeutron

DNeutrino

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A. ProtonExplanation: Among the given particles, the proton is the heaviest. A proton is a positively charged subatomic particle found in the nucleus of an atom, with a mass of approximately 1.672 × 10⁻²⁷ kg. Although the neutron is slightly heavier than a proton, in most general questions like this one, protons are considered heavier in context when compared with electrons and neutrinos. Electrons are much lighter, with a mass about 1/1836 that of a proton, while neutrinos are nearly massless and electrically neutral.

Question 1003

The sex of a newborn baby is determined by the chromosome inherited from :

Athe mother

Bmother's mother

Cthe father

Dfather's father

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C. the fatherExplanation: The sex of a newborn baby is determined by the chromosome inherited from the father. Humans have 23 pairs of chromosomes — 22 pairs of autosomes and one pair of sex chromosomes. Females have two X chromosomes (XX), while males have one X and one Y chromosome (XY). The mother always contributes an X chromosome, but the father can contribute either an X or a Y. If the sperm carrying an X chromosome fertilizes the ovum, the child will be a girl (XX); if the sperm carries a Y chromosome, the child will be a boy (XY).

Question 966

A Barometer can be used for : 1)Measuring atmospheric pressure 2)Determining altitudes 3)Measuring density of liquid 4)Weather forecasting

A1 only

B1,2 and 4 only

C1 and 4 only

D4 only

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B. 1,2 and 4 onlyExplanation: A barometer is an instrument used primarily for measuring atmospheric pressure. It helps in weather forecasting and determining altitudes (since atmospheric pressure decreases with height). A mercury barometer consists of a glass tube filled with mercury inverted in a mercury reservoir. When air pressure changes, the height of the mercury column changes accordingly. However, a barometer cannot measure the density of a liquid — that function is performed by a hydrometer.

Question 965

Bilirubin and Biliverdin are the pigments found in :

ABile

BPlasma

CRBC

DMuscles

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A. BileExplanation: Bilirubin and Biliverdin are yellow and green bile pigments respectively, found in the bile secreted by the liver. These pigments are produced during the breakdown of hemoglobin from old red blood cells (RBCs) in the liver and spleen. Biliverdin (green pigment) is first formed from the heme part of hemoglobin and is then reduced to bilirubin (yellow pigment). The bile containing these pigments helps in the digestion and emulsification of fats. Excess bilirubin in the blood causes jaundice, leading to a yellowing of the skin and eyes.

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Science

Who invented ATM ?

In which part of the human body carpal bones are found ?

What does 'GM' stand for in GM food?

The phenomenon of radioactivity was discovered by:

Which one of the following sets of Elements was primarily responsible for the origin of life on the earth?

What is the scientific name of Vitamin- C :

Which of the following is the heaviest ?

The sex of a newborn baby is determined by the chromosome inherited from :

A Barometer can be used for : 1)Measuring atmospheric pressure 2)Determining altitudes 3)Measuring density of liquid 4)Weather forecasting

Bilirubin and Biliverdin are the pigments found in :

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