List of practice Questions

Frequent use of the mouse and the keyboard can lead to physiological problems. Shaktimaan has been working on his college project report for several hours a day for many days using poorly designed furniture. Which of the following problems could he face?
It is recommended to keep an automobile's petrol tank full or nearly full at all times. Which of the options could be the reason(s) for this recommendation?

A cylinder is cut by a curved surface as indicated by the dotted line in the figure. The top portion of the cylinder is removed. Which option shows the resultant view when seen from the direction indicated by the arrow? 

Four pairs of cities are listed below. Which option arranges the pairs in an ascending order of the aerial distances between them?
K. Ahmedabad – Guwahati
L. Kolkata – Bengaluru
M. Lucknow – Bhopal
N. Delhi – Thiruvananthapuram

Which of the options is the flag of Sri Lanka? 

Given below are two lists. One has names of personalities and the other has their well-known creations. Which of the options matches the personalities and their creations correctly?
PERSONALITIES
P. Elon Musk
Q. Alexander Dumas
R. Dean Kamen
S. James Dyson
CREATIONS
1. Cyclone Vacuum Cleaner
2. Tesla Technologies
3. The Three Musketeers
4. Segway
Government of India has mandated a safety feature called "Automotive Headlights On" (AHO) in 2-wheelers. According to this, the vehicle headlight needs to remain perpetually in the ON mode when the vehicle is running and cannot be turned off even during the day. Which option best explains the reason for this mandate?

Which of the following is the correct logo of Apple Computers? 

What do the terms Kanji, Hiragana, Katakana and Jiaguwen refer to?
Shown below are two views of the same object. How many surfaces does the object contain?
Hue is the value of the equivalent pure (saturated) colour in any given colour. It is represented as a colour wheel going through the colour spectrum, from primary colours Red through Green, Blue and back to Red. If the hue values in degrees range from 0 to 360, what is the hue value of the colour Yellow?
In a secret code, if 3 becomes 1312, 4 becomes 1716, 5 becomes 2120, 6 becomes 2524, 7 becomes 2928 and 8 becomes 3332 then what would 9 become?
Stomach acid has a pH of approximately 2. Sour milk has a pH of 6. Stomach acid is
When the following 1.0 mol dm\(^{-3}\) aqueous solutions are arranged in order of increasing pH, which is the correct order?

I. Ammonium chloride
II. Ammonium ethanoate
III. Sodium ethanoate
Argon crystallises in fcc arrangement and the density of solid and liquid Ar is 1.59 g/cm\(^3\) and 1.42 g/cm\(^3\), respectively. The percentage of empty space in liquid Ar is
Tincture of iodine has antiseptic properties. This solution is made by dissolving :
Vinegar, used in kitchen is a dilute solution of :

Which of the following electronic configuration is not possible ?

Metal, which will displace hydrogen from dilute HCl is :
Beryllium gives a compound X with the following percentage composition: Be = 6.1%, N = 37.8%, Cl = 48%, H = 8.1%. The molecular weight of X is 148 g/mol and that of Be is 9 g/mol. The molecular formula of the compound is:
The bond dissociation energies of X2 , Y2 and XY are in the ratio of 1 : 0·5 : 1. ΔH for the formation of XY is – 200 kJ mol–1 . The bond dissociation energy of X2 will be
Which of the following has maximum number of atoms ?
The number of electrons in an element X is 6 and the number of neutron is 8. Which of the following is the correct representation of the element ?
The ion of an element has 3 positive charges. Mass number of the atom is 27 and the number of neutrons is 14. What is the number of electrons in the ion ?
Isotopes of an element have :