An under-inflated tyre will wear the tread most

An overinflated tyre will wear the tread most near the

A

Edges

B

Corners

C

Centre

D

None of these

The main function of the tread pattern on tyre is that

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

In comparison with a radial tyre, one advantage of a bias ply tyre is

A

Longer life

B

Lower rolling resistance

C

Smoother ride at low speeds

D

None of these

The advantage of a tubeless tyre over tube type tyre is

A

Slow air leakage

B

Better fuel efficiency

C

Less chances of running flat

D

All of these

An under-inflated tyre wear out more-

A

Near centre

B

Near edge

C

In corss section

D

In lateral direction

Opponents of laws that require automobile drivers and passengers to wear seat belts argue that in a free society people have the right to take risks as long as the people do not harm the others as a result of taking risks.As a result,they conclude that it should be each person's decision whether or not to wear a seat belt. Which of the following, if true,most seriously weakens the conclusion drawn above ?

A

Many new cars are built with seat belts that automatically fasten when someone sits in the font seat.

B

Automobile insurance rates for all automobile owners are higher because of the need to pay for the increased injuries or deaths of people not wearing seat belts.

C

Passengers in airplanes are required to wear seat belts during takeoffs and landings.

D

The rate of automobile fatalities in districts that do not have mandatory seat-belt laws is greater than the rate of fatalities in districts that do have such laws.

In a certain class 40% of the students are girls, and 20% of the girls wear glasses. What percent of students in the class are girls who wear glasses.

A

6%

B

8%

C

20%

At a symposium, 20% of the professors are psychologists , 60% are biologists and the remaining 12 professors are economist. If 20 of the professors wear glasses, what percent of the professors do not wear glasses?

A

20%

B

331/3%

C

50%

D

66.2/3%

The students wear blue uniform. Here the word 'wear" can be replaced by.

A

bear with

B

put on

C

put up

D

put off

One who studies and tread the diseases of the eye is -

A

a radiologist

B

an orthodogist

C

an ophthalmologist

D

a neurologist

An under-inflated tyre will wear the tread most

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