ME GATE 2015 PAPER 01 - Online Test
Q1. Consider fully developed flow in a circular pipe with negligible entrance length effects.
Assuming the mass flow rate, density and friction factor to be constant, if the length of the
pipe is doubled and the diameter is halved, the head loss due to friction will increase by a
factor of
Answer : Option D
Explaination / Solution:
Q2. For an ideal gas with constant values of specific heats, for calculation of the specific enthalpy,
Answer : Option A
Explaination / Solution:
No Explaination.
Q3. For flow of viscous fluid over a flat plate, if the fluid temperature is the same as the plate
temperature, the thermal boundary layer is
Answer : Option D
Explaination / Solution:
No Explaination.
Q4. A 10 mm diameter electrical conductor is covered by an insulation of 2 mm thickness. The
conductivity of the insulation is 0.08 W/m-K and the convection coefficient at the insulation
surface is 10 W/m2 -K. Addition of further insulation of the same material will
Answer : Option C
Explaination / Solution:
No Explaination.
Q5. Match the following pairs:
Answer : Option C
Explaination / Solution:
No Explaination.
Q6. Which one of the following types of stress-strain relationship best describes the behavior of
brittle materials, such as ceramics and thermosetting plastics, (σ = stress and ε = strain)?
Answer : Option D
Explaination / Solution:
No Explaination.
Q7. Considering massless rigid rod and small oscillations, the natural frequency (in rad/s) of
vibration of the system shown in the figure is
Answer : Option D
Explaination / Solution:
No Explaination.
Q8. Consider a slider crank mechanism with nonzero masses and inertia. A constant torque τ is applied on
the crank as shown in the figure. Which of the following plots best resembles variation of crank angle, θ versus time
Answer : Option B
Explaination / Solution:
No Explaination.
Q9. For flow through a pipe of radius R, the velocity and temperature distribution are as follows:
where C1 and C2 are constants 
with Um being the mean velocity of flow. The value of Tm is
where C1 and C2 are constants with Um being the mean velocity of flow. The value of Tm is
Answer : Option C
Explaination / Solution:
Q10. Among the four normal distributions
with probability density functions as
shown below, which one has the lowest
variance?
Answer : Option D
Explaination / Solution:
We have Probability distribution
function of Normal Distribution
σ also lowest
If σ decreases
f(x) increases (∵ from (1))
Curve will have highest peak
