GK One Liner for RRB NTPC Stage 2 Exam- Part 15

By Shekher Rajput|Updated : December 30th, 2016

Railway Stage 2 Exam: RRB NTCP Stage Exam 2 is going to approach and the candidates who are appearing  for the exam would be looking for some useful study material. So we are going to provide One Liner on daily basis. Today We will focus on Physics, Chemistry and Biology.  These three sections  covers a good number of questions making it an important topic to cover in SSC Exams.  This One Liners - is a compilation of 20 important & expected questions which can be asked in upcoming exams like - Railway Recruitment Board 2016 , SSC CHSL Exam etc.

1.The ligaments join-Bone to bone

Though similar to tendons, ligaments connect bone to bone and help to stabilize joints they surround. They are composed mostly of long, stringy collagen fibers that create bands of tough, fibrous connective tissue. Ligaments are slightly elastic, so they can be stretched and gradually lengthen, increasing flexibility.

2.Which carries oxygen from lungs to tissues in the body- RBCs

The protein inside red blood cells (a) that carries oxygen to cells and carbon dioxide to the lungs is hemoglobin (b). Hemoglobin is made up of four symmetrical subunits and four heme groups. Iron associated with the heme binds oxygen.

3.The major component of honey is- Fructose

 Honey is a sweet food made by bees using nectar from flowers. The variety produced by honey bees (thegenus Apis) is the one most commonly referred to, as it is the type of honey collected by most beekeepersand consumed by people.

4.Alzheimer’s disease in human beings is characterized by the degeneration of- Nerve cells

5.The contractile proteins in a muscle are- Actin and Myosin

Actin filaments, usually in association with myosin, are responsible for many types of cell movements. Myosin is the prototype of a molecular motor—a protein that converts chemical energy in the form of ATP to mechanical energy, thus generating force and movement.

6.Which vein brings clean blood from the lungs into the heart- Pulmonary Vein

7.The sweetest sugar is- Fructose

8.The other name for phloem is- Bast

 In vascular plants, phloem is the living tissue that transports the soluble organic compounds made during photosynthesis (known as photosynthate), in particular the sugar sucrose, to all parts of the plant where needed.

9.In ferns the xylem is- Mesarch

 Xylem is one of the two types of transport tissue in vascular plants, phloem being the other. The basic function of xylem is to transport water from roots to shoots and leaves, but it also transports some nutrients

 10.The gas used to dilute oxygen for breathing by deep sea divers is- Helium

Heliox is a mixture of oxygen and helium and is often used in the deep phase of a commercial deep dive to eliminate nitrogen narcosis. Heliair is a form of trimix that is easily blended from helium and air without using pure oxygen. It always has a 21:79 ratio of oxygen to nitrogen; the balance of the mix is helium.

11.The polymer obtained by the condensation of hexamethylenediamine and adipic acid is- Nylon 66

Nylon 66 (aka nylon 6-6, nylon 6/6 or nylon 6,6) is a type of polyamide or nylon. Nylonscome in many types, and the two most common for textile and plastics industries are nylon 6 and nylon 66. Nylon 66 is made of two monomers each containing 6 carbon atoms,hexamethylenediamine and adipic acid, which give nylon 66 its name.

12.Philosopher’s wool is chemically- Zinc oxide

The compound zinc oxide (ZnO) is called philosopher’s wool. Alchemists, as part of their rituals, would burn zinc in air and collect the residue, which formed into white wooly tufts. They called it lana philosophica in Latin, meaning philosopher’s wool.

13.In electro-refining, the pure metal is deposited on- Cathode

Electrorefining refers to the process of using electrolysis to increase the purity of a metal extracted from its ore (compound or mixture of compounds from which a metal can be extracted commercially). The anode, positive electrode, is the impure metal to be purified.

14.Milk is- Emulsion

Milk is a white opaque fluid, in which fat is present as an emulsion protein and some mineral matters in colloidal suspension.

 15.The abnormal constituent of urine is- Albumin

When albumin (a type of protein present in blood) is found to be excessive in the urine, it may indicate that the tiny filtering units in the kidney (nephrons) are damaged or destroyed.

16.Water is not suitable as a calorimetric substance because it- Has high specific heat

Water (chemical formula: H2O) is a transparent fluid which forms the world's streams, lakes, oceans and rain, and is the major constituent of the fluids of organisms. As a chemical compound, a water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds. Water is a liquid at standard ambient temperature and pressure, but it often co-exists on Earth with its solid state,ice; and gaseous state, steam (water vapor). It also exists as snow, fog, dew and cloud.

17.Moving electric charge produces- Magnetic field

 When a charged particle such as an electron or proton is in motion, magnetic lines of force rotate around the particle. Since, electrical current moving through a wire consists of electron in motion there is a magnetic field around the wire.

18.A concave lens always forms an image which is- Virtual and erect

 Concave lenses are thinner at the middle. Rays of light that pass through the lens are spread out (they diverge). A convex lens is adiverging lens.

 19.The modulus of rigidity is the ratio of- Shearing stress to shearing strain

 Modulus of Rigidity - G - (or Shear Modulus) is the coefficient of elasticity for a shearing force. It is defined as "the ratio of shear stress to the displacement per unit sample length (shear strain)" .

20.Heat transfer horizontally within the atmosphere is called- Convection

Convection is heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the source of heat, carrying energy with it. Convectionabove a hot surface occurs because hot air expands, becomes less dense, and rises (see Ideal Gas Law).

 More from us:


Team Gradeup


write a comment

SSC & Railway

CGLSSC GDDFCCILCHSLCPONTPCMTSStenoGroup DDelhi PoliceOthersCoursesMock Test

Follow us for latest updates