List of practice Questions

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:
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 :
A body initially at rest and sliding along a frictionless track from a height h (as shown in the figure) just completes a vertical circle of diameter AB = D. The height h is equal to
A body initially at rest and sliding along a frictionless track
Which one of the following statements is incorrect ?
A spring of force constant K is cut into two pieces such that one piece is double the length of the other.Then the long piece will have a force constant of
The restoring force of a system of mass executing SHM is 4N. If its displacement is 4 cm then the force constant is
A particle performing SHM for maximum speed 50 m/s so and maximum acceleration = 100 m/s2 then time period of SHM ?
A organ pipe open on both ends in the nth harmonic is in resonance with a source of 1000 Hz. The length of pipe is 16.6 cm and speed of sound in air is 332 m/sec. Find the value of n.