Asset Mock Test

The density of water is 1 g/cc. Ice floats on water with 90% of its volume inside the water. So a cube of ice with 3 cm side will have [blank_start]24.3 g[blank_end] mass.

A nutcracker is placed as shown on a balance with one part of it tied as shown. The beam is balanced. What will happen to the balance when the thread burns and its top part falls?

Scientists have found that even light is affected by the force of gravity, that is, the path of a light ray 'bends' towards massive star near it. See the figure below. When we observe through a telescope from earth the neutron star appears [blank_start]near A[blank_end].

Figure shows 5 heavy metal balls P, Q, R, S and T held by cords such that they exactly touch each other. First ball P is pulled away as shown and then released so that it hits the ball Q. Then [blank_start]P& Q rebounds, S & T will move forward[blank_end]

Two similar, open cylindrical vessels are connected as shown in the figure. One of them has water in it, while the other is empty. We are required to draw the graph of the water level in each vessel against time immediately after the stopper is opened. Which of these is the correct graph? (The level in one cylinder is shown by the solid line and in the other by the dotted line)

The rate of growth of hair on the human head has been estimated as about 0.44 mm per day. Assuming that this rate is uniform, about what LENGTH of hair (considering just 1 strand) would a normal male adult cut in 20 years?

A meteorite is a solid piece of debris from an object, such as a comet, asteroid, or meteoroid that originates in outer space and survives its passage through the atmosphere to reach the surface of a planet or moon. [blank_start]Frictional and Gravitational forces[blank_end] is responsible for meteoroids entering the Earth's atmosphere.

Jayasree was looking at an object in a mirror. Which of the ray diagrams, given below, shows correctly how the image of the object is formed in the mirror?

The pH of a substance is a measure of its acidity as shown in the scale: When Suresh complained of acidity, his doctor prescribed a liquid antacid which gave him relief. Which of these could be the pH of the antacid?

Both AIR CONDITIONERS and AIR COOLERS can be used to cool rooms. What is the main difference in the effect they produce?

In which of these ways would our vision have been affected if we had only one eye rather than a PAIR of eyes to see with?

Isomers are molecules which have the same number and type of atoms, but their arrangement is different. For example,

Most television sets these days can be operated through a REMOTE CONTROL. How do most 'remotes' communicate with TV sets?

Mary took four pots having the same plants of the same age and applied Fertilizers P and Q in the quantities shown. All the plants were kept undisturbed in similar conditions near each other. From the observation it is clear that in smaller quantities [blank_start]Fertilizer P[blank_end] is more effective; in larger quantities, [blank_start]Fertilizer Q[blank_end] .

Darsheel took an empty plastic bottle and used a nail to poke a hole on the side of the bottle. He covered the hole with his finger and filled the bottle with water all the way to the top. Then he tightly screwed on the cap, and slowly took his finger away from the hole. No water came rushing out of the hole, when he did this.

Zeenat placed three balls on a table to show the positions of the Earth, the Sun and the Moon as shown in the figure. Based on the arrangement shown, which phase of the Moon will be visible to people on the Earth?

Two liquids P and Q, and two solids R and S are shown in different undisturbed arrangements below. Study the arrangements and arrange P, Q, R and S in order of INCREASING density.

'Brainplug', a product for students, claims to improve their Maths skills. Mahesh wants to design an experiment to test this claim. He plans to take two groups of students from a class. Both the groups study maths in their classes. But only one of the groups is made to use 'Brainplug' for two months. In order to test his claim, he can give similar tests before and after the program to [blank_start]both the groups[blank_end] and compare their performances [blank_start]in both the tests[blank_end].

Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells. In vertebrates, it is composed of blood cells suspended in blood plasma. Which of these is NOT a function of blood.

A satellite's orbit is fixed at a height of 35,970 km. At this height, the satellite is able to continuously look at the same part of the Earth even as it moves. Which of these would be true at this height?

A vitamin is an organic compound, which means that it contains carbon. It is also an essential nutrient that the body may need to get from food. Same time they are required [blank_start]in small amounts for normal body growth[blank_end] and activity. Each organism has different vitamin requirements.

The figure below shows the path taken by a ray of light as it reflects off a smooth surface. Which of these is true?

Most television sets these days can be operated through a REMOTE CONTROL. How do most 'remotes' communicate with TV sets?

The sound being produced by a large machine in a factory is shown by this graph. An engineer has a theory. He says that he will create a sound using a computer and amplifier that will produce an 'anti-noise' having exactly the opposite wave form - and this will cancel out the sound and reduce the noise quite a bit. Can this idea work?

When Ram was about to switch on the light in his room, his sister stopped him. She told him that he should first DRY his hands (which were wet), before touching the electric switch. Was Ram's sister correct? Why / why not?

Setup P in the figure shows an egg being boiled. In setup Q, a similar arrangement is used, but inside an apparatus which creates near-vacuum condition. Will the egg in setup Q get cooked faster?

Which of the following Venn diagrams would BEST be suited to represent the three categories of animals?

To compare the hearing capacities of 5 of his friends, Ravi designs a simple experiment. He places a CD player at the end of a long hall containing a CD with 5 well-known song. One by one each person hears the same 5 songs he plays softly but at a pre-determined volume. Each person starts at a distance of 1 meter from the player and moves away from it. The distance at which a person says that he cannot hear the song any more, is noted. Others are not in the room when 1 person is hearing the song. Which of these steps may increase the reliability of the results obtained?

Study the reaction given below. PQ + XY → XQ + PY (P, Q, X and Y are atoms of different elements.) A reaction like this is a/an [blank_start]________________[blank_end].

Resistors are semi-conductor devices which are important components of electronic circuits. Resistance is measured in OHMS, and each resistor has a rating in ohms. Because a resistor is small and may be fixed in any orientation, its resistance value is coded on it using coloured bands rather than writing its resistance value on it. A colour code is used to determine the value of a resistor as per this table. What is the resistance of the resistor shown here?

Resistors are semi-conductor devices which are important components of electronic circuits. Resistance is measured in OHMS, and each resistor has a rating in ohms. Because a resistor is small and may be fixed in any orientation, its resistance value is coded on it using coloured bands rather than writing its resistance value on it. A colour code is used to determine the value of a resistor as per this table. Which three colour bands represent 600 ohms?

Study this electrical circuit. It consists of a powerful battery, a bulb, an electromagnet and a movable connection. The connection is designed in such a way that it closes (that is, it allows electric current to pass) when the electromagnet is not magnetised; but opens when the electromagnet is magnetised. If the electromagnet takes 5 seconds to get magnetised, what will be status of the electric bulb?

In science and engineering, the weight of an object is the force acting on the object due to gravity. [blank_start]A small sized apple[blank_end] would weigh approximately 1 Newton.

An oxide ion (O2-) formed from an Oxygen–18 atom contains exactly.

Which of the following is the MOST important reason for CNG to be promoted as a fuel for automobiles?

When can we be SURE that letters X, Y and Z represent the same element?

The simple series circuit consists of three identical bulbs 1, 2 and 3 connected to a battery. As shown in Fig X, all the bulbs glow with equal brightness. Which of the following happens when a wire is connected between points P and Q (as shown in Fig Y)?

The table below shows a few products obtained from plants and animals. Which one of the following has been placed in the wrong column?

The Andaman Islands in the Bay of Bengal depend exclusively on rain for their freshwater supply. Some of the hotels in the Andamans started using seawater instead of fresh water for flushing toilets. This is an example of [blank_start]_______________[blank_end]

In the given world map, the place is closest to Bolshevik Island is [blank_start]Queen Elizabeth Islands[blank_end].