Blue Star Placement Papers-Free Download
1st Round – GD – Topics –
1. What should India to improve its winning chances against australia
in forthcoming tour.
2. America’s War on Iraq.
3. Freedom of Press.
4.Latest developments on India-Pakistan peace process.
5.Effect of tv on society.
Each group was given two topics and they had to discuss 5 minutes on
2nd Round – Written Test – 47 questions in 1 hour. All were technical.
No negative marking.
3rd Round – Personal Interview.
All three round were shortlisting rounds.
Montreal protocol limits the use of _______ ? ans. Ozone depleting
Rain drop is spherical due to ________ ? ans. Surface tension
Global warming is due to _______ ? ans. Carbon-di-oxide
One ton of refrigeration is equal to_______ ? ans. 12000 btu/hr
For a laminar flow Reynolds flow should be ______ ? ans. Less than 2000
In latent heating a substance _________ ? ans. Changes phase without
increase in temperature
Degree of saturation is ratio of _______ ?
A pipe friction test shows that, over the range of speeds used for the
test, the non-dimensional friction factor f, varies inversely with
Reynolds No. It can be inferred from above that, ans. Pipe should be
In a rough turbulent flow in a pipe, the friction factor would depend
upon? Ans. Pipe diameter and pipe condition.
What is the refrigerant used in vapour absorption cycle?
Pick the odd one out. F12, F22, F11, CO
Expansion in a vapour compression cycle is an_______ ? ans. Isenthalpic
What is the work of throttling process? Ans. Expansion
What is the material of heat exchanger tubes? Ans. Copper
Tachometer is used to measure _________ ? ans. Speed
Mercury is used in manometer because ________ ?
Check valves are used to ensure ________ ? ans. Unidirectional flow
Anti-freeze agent used is _________? Ans. Ethylene glycol
Anemometer can be used to measure _________ ?
Bypass factor of a cooling coil is _________?
Aspect ratio of a rectangular duct is the ratio between its _______ ?
The temp that is numerically the same in Fahrenheit & centigrade
scales is ________ ?
The loudness of sound depends upon its ________ ?
Dewpoint is the temperature at which water vapor will undergo ________
? ans. Condensation
One question using the formula 120fs/p
In inductance _______ leads _______ ?
Power factor is least in ______ ? a. capacitance b. resistance c.
Barometer is used to measure _______ ?
Identify the odd one out a. DIN b. ISI c. JIS d. IIT
If the NPSH requirements of a pump are not satisfied it will _______ ?
Approach of a cooling tower is the difference between temperatures of
A parallel flow heat exchanger will perform better than a counter flow
heat exchanger. State whether this is true or false
The index that normally reflects laminar flow in a tube is ______ ?
ans. Reynolds no.
Pressure drop in air duct is influenced by __________ ? ans. shape of
By increasing the intake air temp, efficiency of IC engine will _______
? ans. decrease
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