Railway and Airport Engineering (3170619) MCQs

MCQs of Unit 1 : Geometric design of railway track

Showing 1 to 10 out of 41 Questions
1.
The maximum gradient allowed on the track section is ________________
(a) Pusher gradient
(b) Momentum gradient
(c) Gradient at station and yard
(d) Ruling gradient
Answer:

Option (d)

2.
You are visiting Darjeeling via railway after completing lock-down with family and train is stop during travelling on large vally , and Indian Railway has joined second engine to pass the valley suggest the type of gradient may be
(a) Ruling gradient
(b) Momentum gradient
(c) Pusher gradient
(d) None of above
Answer:

Option (c)

3.
To reduce resistance, Gradients are reduced on curve, this reduction in gradients is known as grades compensation, suggest the amount of Grade Compensation on BG track
(a) 0.03% Per degree of Curve OR 52.5/R ( R= Radius of curve in m.) Whichever is minimum
(b) 0.04% Per degree of Curve OR 70/R ( R= Radius of curve in m.) Whichever is minimum
(c) 0.02% Per degree of Curve OR 35/R ( R= Radius of curve in m.) Whichever is minimum
(d) None of the above
Answer:

Option (b)

4.
Find the grade compensation____________ and compensated gradients______________ on a 3˚ curve, radius of curve 875 m, for a BG line with ruling gradient 1 in 200
(a) 0.08%, 1 in 238
(b) 0.05%, 1 in 200
(c) 1 in 238, 0.08%
(d) 0.12%, 1 in 238
Answer:

Option (a)

5.
Maximum value of superelevation according to Railway for BG Track
(a) 1/12th of Gauge
(b) 1/20th of Gauge
(c) 1/11th of Gauge
(d) 1/10th of Gauge
Answer:

Option (d)

6.
The speed which protects a carriage from the danger of overturning and derailment For BG and MG with Transitional curve
(a) 𝑉=44√(𝑅−70)
(b) 𝑉=4.4√(70−R)
(c) 𝑉=4.4√(𝑅−70)
(d) 𝑉=4.4√(𝑅−700)
Answer:

Option (c)

7.
The degree of a curve (D) is the angle subtended at its centre by a 30.5-m or 100-ft chord.
(a) 1750/R
(b) 1720/R
(c) 1700/R
(d) 1800/R
Answer:

Option (a)

8.
Let R be the radius of the curve, C be the length of the chord and V be the versine of a chord of length C. The relationship between radius and versine of a curve
(a) V= C^2/4R
(b) V= C^2/8R
(c) V= C^3/8R
(d) V= C^4/8R
Answer:

Option (b)

9.
Maximum permissible__________ degree of curves on BG Track
(a) 10
(b) 16
(c) 40
(d) None
Answer:

Option (a)

10.
When a train travels around a curve at a speed higher than the equilibrium speed is known as
(a) Cant
(b) Cant excess
(c) None
(d) Cant deficiency
Answer:

Option (d)

Showing 1 to 10 out of 41 Questions