Question
The 'four stroke petrol engine' is based on –
Solution
A four-stroke engine (also known as four-cycle) is an internal combustion engine in which the piston completes four separate strokes—intake, compression, power, and exhaust—during two separate revolutions of the engine's crankshaft, and one single thermodynamic cycle.
Choose a figure which would most closely resemble the unfolded form of figure (Z).
Select a suitable figure from the Answer Figures that would replace the question mark (?) from question figure.
Which figure is different from the rest?



Three of the following four figure pairs are alike in a certain way and thus form a group. Which is the one that does not belong to that group?
<...How Many Triangles are there in the given figure?

Study the given pattern carefully and select the number that can replace the question mark (?) in it.
Select the figure that can replace the question mark (?) in the following series.

Option figures: