The diagram which shows the correct crank positions corresponding to the opening

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Question
The diagram which shows the correct crank positions corresponding to the opening and closing of the valves, is known as
Options
A. indicator diagram
B. axial force diagram
C. valve timing diagram
D. none of these

Correct Answer

valve timing diagram

Automobile Engineering problems

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3. The battery is an electrochemical device, which means battery
Options
A. makes chemicals by mechanical means
B. uses chemical action to provide electricity
C. has curved plates instead of flat plates
D. does not use an electrolyte

4. The function of an alternator in an automobile is to
Options
A. supply electric power
B. convert mechanical energy into electrical energy
C. continually recharge the battery
D. partly convert engine power into electric power

5. The main function of the tread pattern on tyre is that
Options
A. the tread grooves pass air between the tyre and road surface, thereby preventing tyre from overheating
B. the crests between the tread grooves absorb road noise
C. in wet conditions, the tread grooves expel water that is drawn between the tyre and road surface
D. the tread pattern protects the tyre's inner carcass from small stones and pieces of glass

6. In radial tyres
Options
A. one ply layer runs diagonally one way and another layer runs diagonally the other way
B. all plies run parallel to one another and vertical to tyre bead
C. inner tubes are always used
D. none of these

8. Which of the following statement is correct?
Options
A. The kinetic energy of a body during impact remains constant.
B. The kinetic energy of a body before impact is equal to the kinetic energy of a body after impact.
C. The kinetic energy of a body before impact is less than the kinetic energy of a body after impact.
D. The kinetic energy of a body before impact is more than the kinetic energy of a body after impact.

9. The point, through which the whole weight of the body acts, irrespective of its position, is known as
Options
A. moment of inertia
B. centre of gravity
C. centre of percussion
D. centre of mass

10. A block of mass m₁, placed on an inclined smooth plane is connected by a light string passing over a smooth pulley to mass m₂, which moves vertically downwards as shown in the below figure. The tension in the string is
Options
A. m₁/m₂
B. m₁.g sin ?
C. m₁.m₂/m₁+m₂
D.

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