# Highway Engineering MCQ Practice Test – Set 10

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## Q1. The formula for calculating the depth of concrete pavements suggested by Gold beck, is

(A) d = 3W/σmax
(B) d = √(3W/σmax)
(C) d = √(2W/σmax)
(D) d = √(1.5W/σmax)

Answer: (B) d = √(3W/σmax)

## Q2. A single lane carriage way whenever changes to two-lane carriage way, is affected through a taper of

(A) 1 in 10
(B) 1 in 15
(C) 1 in 20
(D) 1 in 15 to 1 in 20

Answer: (D) 1 in 15 to 1 in 20

## Q3. The first stage of deciding the alignment of a hill road, is

(A) Reconnaissance
(B) Detailed survey
(C) Trace-out
(D) Preliminary survey

Answer: (A) Reconnaissance

(A) Δ/2
(B) Δ/3
(C) Δ/4
(D) Δ/6

Answer: (D) Δ/6

## Q5. If N is deviation angle, the length L, of a parabolic vertical curve for safe stopping distance S, is

(A) NS2/4.4 if L > S
(B) 2S – 4.4/N if L < S (C) 2S – 4.4/N if L > S
(D) Both (a) and (b)

Answer: (D) Both (a) and (b)

(A) 45 m
(B) 30 m
(C) 24 m
(D) 20 m

Answer:(A) 45 m

## Q7. Most suitable material for highway embankments is

(A) Granular soil
(B) Organic soil
(C) Silts
(D) Clays

Answer:(A) Granular soil

## Q8. Softening point of bitumen to be used for read construction at a place where maximum temperature is 40°C should be

(A) Less than 40°C
(B) Greater than 40°C
(C) Equal to 40°C
(D) None of the above

Answer: (B) Greater than 40°C

## Q9. Floating gradients are generally provided

(A) Along maximum gradients
(B) Along minimum gradients
(C) At summit curves
(D) At valley curves

Answer: (C) At summit curves

## Q10. The road foundation for modern highways construction, was developed by

(A) Tresguet
(B) Telford
(C) Tresguet and Telford simultaneously
(D) Telford and Macadam simultaneously

Answer: (D) Telford and Macadam simultaneously

## Q11. According to IRC : 52-1973, for a single lane National Highway in hilly region,

(A) Width of the carriageway must be 3.75 m
(B) Shoulders on either side must be 1.25 m
(C) Total width of the road-way must be 6.25 m
(D) All of the above

Answer: (D) All of the above

## Q12. If cross slope of a country is up to 10% the terrain is classified as

(A) Plain
(B) Rolling
(C) Mountainous
(D) Steep

Answer: (A) Plain

## Q13. Longitudinal pavement lines marked broken in white paint

(A) Are for the guidance of the drivers
(B) Are not to be crossed over
(C) May be crossed over at the discretion of the driver
(D) All the above

Answer: (C) May be crossed over at the discretion of the driver

(A) 10°
(B) 15°
(C) 20°
(D) 30°

Answer: (D) 30°

## Q15. Area of steel required per metre width of pavement for a length of 20 m for design wheel load 6300 kg and permissible stress in steel 1400 kg/cm2, is

(A) 70 kg/sq cm
(B) 80 kg/sq cm
(C) 90 kg/sq cm
(D) 100 kg/sq cm

Answer:(C) 90 kg/sq cm

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