As you all know that RRB JE CBT 1 is starting from 22nd May 2019 onwards. we hope that you have already started your preparation because practice is really important at this time. General Science is an important section in Railway Exams. So we are providing you some important questions in this article. So do practice and increase your score.
Railway Ki Pathshala:RRB JE CBT 1 2018-19: General Science Quiz 1
1. Where is Stapes bone found in human body? Fingers Noses Ears Thumb
Ans. (c) The stapes is a bone in the middle ear of humans and other mammals which is involved in the conduction of sound vibrations to the inner ear. The stapes is the smallest and lightest named bone in the human body.
2. Which of the following is the highest source of protein? Sun flower Soyabean Grams Wheat
Ans. (b) Soybeans are among the best sources of plant-based protein. The protein content of soybeans is 36–56% of the dry weight. One cup (172 grams) of boiled soybeans boasts around 29 grams of protein. The main types of protein in soybeans are glycinin and conglycinin, which make up approximately 80% of the total protein content.
3. Where is urine stored in human body? Kidneys Urinary bladder Liver Nephron
Ans. (b) The urinary bladder is a hollow muscular organ in humans and some other animals that collects and stores urine from the kidneys before disposal by urination. It is in the pelvis, just above and behind the pubic bone.
4. Early blight is a common disease seen in which of the following? Potato Ginger Cabbage Cauliflower
Ans. (a) Alternaria solani is a fungal pathogen, that produces a disease in tomato and potato plants called early blight. The pathogen produces distinctive “bullseye” patterned leaf spots and can also cause stem lesions and fruit rot on tomato and tuber blight on potato.
6. ____ is the change in velocity per unit time. Acceleration Momentum Force Inertia
Ans. (a) Acceleration is the rate of change of velocity of an object with respect to time. An object’s acceleration is the net result of all forces acting on the object, as described by Newton’s Second Law. The SI unit for acceleration is meter per second squared.
7. The line that joins the centre of curvature and the pole of a curved surface is called: Focus Principal axis Focal point Radius of curvature
Ans. (b) The pole of a spherical surface (refracting or, reflecting) is the central point of the surface involved in the formation of the image. It is denoted by O or, P. The axis, for a single spherical surface, is the join of the pole with the centre of curvature; it is known as the principal axis.
8. What is the chemical name of vinegar? Acetic Acid Citric Acid Lactic Acid Formic Acid
Ans. (a) Acetic acid is the chemical name of vinegar. Vinegar is an aqueous solution of acetic acid. It has a wide variety of industrial and domestic uses; such as its use as a household cleaner. Acetic acid has a distinctive sour taste and pungent smell.
Ans. (b) Lemons are extremely acidic. Any chemical with a pH less than 7 is considered acidic. Lemon juice has a pH around 2.0, ranging between 2 to 3.
10. The characteristic odour of garlic is due to which of the following? Chloro compound A sulphur compound A fluorine compound Acetic acid
Ans. (b) Garlic is known to cause bad breath and body odor, described as a pungent “garlicky” smell to sweat. This is caused by allyl methyl sulfide. The characteristic odour of garlic is due to sulphur containing compounds.
Very nice questions
Excellent