ENGINEERING BASICS - SECTION 10
QUESTIONS AND VERIFIED
ANSWERS|100% CORRECT|GRADE A+
passive - ANSWER LVDT used for displacement measurement is a/an __________ transducer.
passive
active
capacitive
none of these
non-zero shear stress. - ANSWER A static fluid can not have
zero shear stress.
positive normal stress.
non-zero shear stress.
none of these.
both (a) & (b).
Temperature range (T1 - T2) = 15°F.
Temperature approach (T2 - tw) = 10°F.
Wet-bulb temperature tw = 70°F. - ANSWER In a forced draft cooling tower, water is cooled from 95 to
80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the
range is 15°F.
approach is 10°F.
both (a) & (b).
neither (a) nor (b).
Steel - ANSWER Which of the following is the most elastic material ?
Plastic
, Glass
Steel
Rubber
nitrous oxide - ANSWER The 'laughing gas' is
nitrous oxide
nitric oxide
nitrogen trioxide
nitrogen pentoxide
HF - ANSWER Glass reacts with
H2SO3
HF
HNO3
K2Cr2O7
increased mean time in the queue. - ANSWER The cost of providing service in a queing system decreases
with the
increased mean time in the queue.
increased arrival rate.
decreased mean time in the queue.
decreased arrival rate.
remains constant. - ANSWER The activity co-efficient of the solute in a dilute solution
decreases with the increase of concentration of the solute.
increases with the increase of concentration of the solute.
remains constant.
is unity at infinite dilution.