ME GATE 2010 - Online Test
Q1. Match the following
P:Compressible flow U: Reynolds number
Q: Free surface flow V: Nusselt number
R: Boundary layer flow W: Weber number
S: Pipe flow X: Froude number
T: Heat convection Y: Mach number
Z: Skin friction coefficient
Answer : Option D
Explaination / Solution:
No Explaination.
Q2. There are two points P and Q on a planar rigid body. The relative velocity
between the two points
Answer : Option C
Explaination / Solution:
No Explaination.
Q3. A mono-atomic ideal gas ( γ = 1.67, molecular weight = 40) is compressed
adiabatically from 0.1MPa, 300K to 0.2MPa . The universal gas constant is
8.314kJkmol-1K-1. The work of compression of the gas (in kJ kg-1) is
Answer : Option A
Explaination / Solution:
No Explaination.
Q4. The state of plane-stress at a point is given by
σx = −200MPa, σy = 100MPa and τxy = 100MPa. The maximum shear stress in MPa is
Answer : Option C
Explaination / Solution:
No Explaination.
Q5. Consider the following two processes:
a. A heat source at 1200K loses 2500kJ of heat to sink at 800K
b. A heat source at 800K loses 2000kJ of heat to sink at 500K
Which of the following statements is TRUE?
Answer : Option B
Explaination / Solution:
No Explaination.
Q6.
Answer : Option A
Explaination / Solution:
No Explaination.
Q7. A fin has 5mm diameter and 100mm length. The thermal conductivity of fin
material is 400Wm-1K-1. One end of the fin is maintained at 130ºC and its
remaining surface is exposed to ambient air at 30ºC. if the convective heat
transfer coefficient is 40Wm-2K-1, the heat loss (in W) from the fin is
Answer : Option B
Explaination / Solution:
No Explaination.
Q8. The natural frequency of a spring-mass system on earth is ωn. The natural
frequency of this system on the moon (gmoon = gearth/ 6) is
Answer : Option A
Explaination / Solution:
No Explaination.
Q9. A moist air sample has dry bulb temperature of 30ºC and specific humidity of
11.5g water vapour per kg dry air. Assume molecular weight of air as 28.93. If
the saturation vapour pressure of water at 30ºC is 4.24kPa and the total pressure
is 90kPa, then the relative humidity (in %) of air sample is
Answer : Option B
Explaination / Solution:
No Explaination.
Q10. Tooth interference in an external involute spur gear pair can be reduced by
Answer : Option D
Explaination / Solution:
No Explaination.
