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Directions to Solve

Some scholars were exploring the forest of Middle America. They discovered some buildings which were in ruins. These buildings were ...(1)... ruined by the encroaching forest. It was also clear that these buildings were no ordinary structures. They were remnants of a ...(2)... civilisation. The scholars got interested. They excavated more and discovered ...(3)... their utmost surprise the remains of flourishing civilization-the Maya's ...(4)... they named it. Thus it was as late in ...(5)... 19th that the secrets of new civilization were ...(6)... For sometime the scholars believed that the Mayan's must have ...(7)... the descendants of ancient Egyptians or one of the lost tribes of Israel; or perhaps a brand of the South East Asia's immigrants. However they could not come to an unanimous decision. Nonetheless the fact remains that even-to day the Mayan is one of ...(8)... most ancient cicilizations. This civilisation was situated in the ...(9)... of Middle America. It covered an area equivalent to France, ...(10)... spread across Guatemala, Belize and some part of Mexico Honduras. It started in 2500 B.C and continued its progress till 34 ...(11)... later. Throughout its period of progress, the people struggled against the invading ...(12)... They used to burn the plants and make the land ...(13)... for civilization. Their staple food was maize. but even while ...(14)... for existence, they found time to build remarkable buildings for ...(15)... they used mortar, sandstone and volcanic rock. The buildings do tell us about the technological advances they had attained.

Q1: (solve as per the direction given above)

A reasonable

B apparently

C surely

Q2: The velocity ratio in case of an inclined plane inclined at angle θ to the horizontal and weight being pulled up the inclined plane by vertical effort is

A tan θ

B cos θ

C sin θ

D cosec θ

Q3: The range of projectile on a downward inclined plane is __________ the range on upward inclined plane for the same velocity of projection and angle of projection.

A more than

B equal to

C less than

Q4: The angle of inclination of a vehicle when moving along a circular path __________ upon its mass.

A does not depend

B depends

Q5: A body of weight W is required to move up on rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by(where μ = tanφ = Coefficient of friction between the plane and the body.)

A P = W (cosα + μsinα)

B P = W tanα

C P = W tan(α + φ)

D P = W (sinα + μcosα)

Q6: If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is

A 60°

B 90°

C 120°

D 30°

Q7: A smooth cylinder lying on its convex surface remains in __________ equilibrium.

A neutral

B unstable

C stable

Q8: Coefficient of friction is the ratio of the limiting friction to the normal reaction between the two bodies.

A Yes

B No

Q9: Moment of inertia of a circular section about an axis perpendicular to the section is

A πd4/64

B πd4/32

C πd3/16

D πd3/32

Q10: The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, α = Angle of projection, and β = Inclination of the plane with the horizontal.)

A

B

C

D