Q1.An elastic bar of length L, uniform cross sectional area A, coefficient of thermal expansion
α, and Young’s modulus E is fixed at the two ends. The temperature of the bar is increased
by T, resulting in an axial stress σ. Keeping all other parameters unchanged, if the length of
the bar is doubled, the axial stress would be
Answer : Option AExplaination / Solution:
σ varies with ∆T and does not depends upon the length of bar.
Q2.The queue length (in number of vehicles) versus
time (in seconds) plot for an approach to a
signalized intersection with the cycle length of 96
seconds is shown in the figure (not drawn to scale).
At time t = 0, the light has just turned red. The
effective green time is 36 seconds, during which
vehicles discharge at the saturation flow rate, s (in vph). Vehicles arrive at a uniform rate v (in vph), throughout the cycle. Which one of the following statements is TRUE?
Answer : Option BExplaination / Solution: No Explaination.
Q3.A strip footing is resting on the ground surface of a pure clay bed having an undrained
cohesion Cu. The ultimate bearing capacity of the footing is equal to
Q4.The radius of a horizontal circular curve on a highway is 120 m. The design speed is 60
km/hour, and the design coefficient of lateral friction between the tyre and the road surface is
0.15. The estimated value of superelevation required (if full lateral friction is assumed to
develop), and the value of coefficient of friction needed (if no superelevation is provided)
will, respectively, be
Q8.Students applying for hostel rooms are allotted rooms in order of seniority. Students already
staying in a room will move if they get a room in their preferred list. Preferences of lower
ranked applicants are ignored during allocation.
Given the data below, which room will Ajit stay in?
Answer : Option BExplaination / Solution:
As per their preferences given
Amar →R
Akbar → S
Antony → P
Ajit → Q