114) Which of the following shapes is preferred in a valley curve

simple parabola

cubic parabola

spiral

lemniscate

Answer is:

cubic parabola

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115) The value of ruling gradient in plains as per IRC recommendation is

1 in 12

1 m 15

1 in 20

1 in 30

Answer is:

1 in 30

116) In case of summit curves, the deviation angle will be maximum when

an ascending gradient meets with another ascending gradient

an ascending gradient meets with a descending gradient

a descending gradient meets with another descending gradient

an ascending gradient meets with a level surface

Answer is:

an ascending gradient meets with a descending gradient

117) If the design speed is V kmph and deviation angle is N radians, then the total length of a valley curve in metres is given by the expression

0.38 N V3/2

0.38 (NV3)″2

3.8 NV″2

3.8 (NV3)″2

Answer is:

0.38 (NV3)″2

118) If an ascending gradient of 1 in 50 meets a descending gradient of 1 in 50, the length of summit curve for a stopping sight distance of 80 m will be

zero

64m

80m

60m

Answer is:

60m

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114) Which of the following shapes is preferred in a valley curve

cubic parabola

Transportation Engineering MCQ with Answers

Related Transportation Engineering MCQ with Answers

115) The value of ruling gradient in plains as per IRC recommendation is

1 in 30

116) In case of summit curves, the deviation angle will be maximum when

an ascending gradient meets with a descending gradient

117) If the design speed is V kmph and deviation angle is N radians, then the total length of a valley curve in metres is given by the expression

0.38 (NV3)″2

118) If an ascending gradient of 1 in 50 meets a descending gradient of 1 in 50, the length of summit curve for a stopping sight distance of 80 m will be

60m

Transportation Engineering MCQ with Answers