Related Questions

In which of the following type of gear train the first gear and the last gear are co-axial.
A Simple gear train
B Compound gear train
C Reverted gear train
D None of the mentioned
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%
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.
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
In order to implement gear changes in the gear unit of an automatic transmission, a ___________ is used.
A Synchronizer
B Planetary gear
C Magnetic clutch
D Hydraulic multi plate clutch
The Ackerman steering gear mechanism is preferred to the Davis steering gear mechanism, because
A whole of the mechanism in the Ackerman steering gear is on the back of the front wheels and (
B the Ackerman steering gear consists of turning pairs
C the Ackerman steering gear is most economical
D both (a) and (b)
When the axes of first and last gear are co-axial, then gear train is known as
A simple gear train
B compound gear train
C reverted gear train
D epicyclic gear train
In helical gears, the right hand helixes on one gear will mesh __________ helixes on the other gear.
A Right hand
B Left hand
C Both A and B
D None of these
While cutting helical gears on a non-differential gear hobber, the feed change gear ratio is
A Independent of index change gear ratio
B Dependent on speed change gear ratio
C Interrelated to index change gear ratio
D Independent of speed and index change gear ratio

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