Time Left - 12:00 mins
BARC OCES 2022 Quiz 8
Attempt now to get your rank among 284 students!
Question 1
The machined work-piece is free of residual mechanical stresses in which of the following non-conventional machining processes?
Question 2
The lowest eigen value of the 2×2 matrix
is ________
is ________Question 3
A pitot tube measures a differential pressure of 0.008 bar. What is the speed of the plane, if it is flying at a height of about 12000 m. Take density of air at this height 0.31 kg/m3
Question 4
Given that the peripheral speed of the grinding wheel of 100 mm diameter for cylindrical grinding of a steel workpiece is 30 m/s, what will be the estimated rotational speed of the grinding wheel in revolution per minute (rpm)?
Question 5
The inlet temperature of a counter flow heat exchanger for hot and cold fluid is 170
and 30
. The ratio of capacity rate for hot and cold fluid is 1. Find the LMTD (degree celcius) of the heat exchanger. Take effectiveness ε=0.7
and 30. The ratio of capacity rate for hot and cold fluid is 1. Find the LMTD (degree celcius) of the heat exchanger. Take effectiveness ε=0.7Question 6
The radiative heat transfer rate per unit area (W/m2) between two plane parallel gray surfaces whose emissivity is 0.9 and maintained at 400 K and 300K is _________.
Question 7
What is the value of:
Question 8
A brick wall (k =0.9
) of thickness 0.18 m separates the warm air in a room from the cold ambient air.On a particular winter day the outside air temperature is -5 °C and the room needs to be maintained at 27 °C. The heat transfer coefficient associated with outside air is 
Neglecting the convective resistance of the air inside the room, the heat loss, in
, is
) of thickness 0.18 m separates the warm air in a room from the cold ambient air.On a particular winter day the outside air temperature is -5 °C and the room needs to be maintained at 27 °C. The heat transfer coefficient associated with outside air is Neglecting the convective resistance of the air inside the room, the heat loss, in, isQuestion 9
The process of reheating the martensitic steel to reduce its brittleness without any significant loss in its hardness is
Question 10
The area bounded by that parabola 2y=x2 and the line x = y-4 is equal to
- 284 attempts
- 0 upvotes
- 0 comments
Tags :
ESE & GATE MEGeneralMar 13ESE & GATE ME
