Which factors most affect traction in a curve?*1 pointA. Tire condition and speed.B. Targeting and holding the wheel at 9 and 3.C. Commentary driving and gear selection.D. Lane position and following distance.

The changes in gradient and vertical curve are covered under which type of alignment?a.Highway specificationsb.Vertical alignmentc.Horizontal alignmentd.Geometric design

If investment spending is very sensitive to the interest rate, then:Group of answer choicesthe IS curve should be relatively flatthe IS curve should be relatively steepthe LM curve should be relatively flatthe LM curve should be relatively steepneither the IS nor the LM curve will be affected

Friction of your vehicle on the roadway is increased if your tires are over-inflated or are worn smooth (i.e.--don't have any tread left).A. TrueB. False

Which of the following factors improve the chances of toppling of a vehicle1) low centre of gravity2) high ground clearance3) radius of curvature of the road is low4) radius of curvature of the road is high5) coefficiency of friction between tyre and the road is high6) coefficiency of friction between tyre and the road is low7) high centre of gravity8) low ground clearance*1,4,5,81,3,6,82,3,6,72,1,4,6

. A test is conducted to compare the tread wear of certain type of tires on highways paved with asphalt and highways paved with concrete. Road tests were conducted with the same type of tires on two types of highways. Summary data on the mileage of the tires up to a certain level of wear are given below. Sample Size Sample Mean Sample Standard Dev. Asphalt 35 29,700 9,700 Concrete 35 25,500 7,800 Does this information suggest that tires wear faster on concrete-paved highways than asphalt paved highways? Test using  = 0.01. Use the 5 step method.