IndiaBIX

Chemical Engineering - Heat Transfer

Exercise : Heat Transfer - Section 5
31.
Grashoff number, which is defined as g . β(Ts - T∞) ρ2. L3/μ2, is proportional to the ratio of buoyancy force to __________ force.
viscous
elastic
inertial
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Pick out the wrong statement.
By increasing the number of shell passes, the temperature cross in a shell and tube heat exchanger can be prevented.
An underdesigned steam trap will back up the condensate instead of discharging it out.
Steam condensate is corrosive because of the presence of dissolved oxygen in it.
Film boiling is desirable in commercial equipments due to high heat transfer rate at low temperature drop.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Graetz number is given by
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
For a cold dilute feed to produce thick viscous liquor, backward feeding as compared to forward feeding results in
increased economy
decreased economy
lower capacity
no effect on economy
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Economy of an evaporator is influenced by the
steam pressure
feed temperature
number of effect
both(b) & (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers