Lakshya Education MCQs

Question: Viscosity of water in comparison to mercury is
A. Higher
B. Lower
C. Same
D. Higher/lower depending on temperature
Answer: Option A

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More Questions on This Topic :

Question 1. Gauge pressure at a point is equal to the absolute pressure __________ the atmospheric pressure.
  1.     Plus
  2.     Minus
  3.     Divide
  4.     Multiply
Answer: Option B
Question 2. Casting of a centrifugal pump is designed so as to minimize
  1.     Friction loss
  2.     Cavitations
  3.     Static head
  4.     Loss of kinetic energy
Answer: Option D
Question 3. A turbine develops 10000 kw under a head of 25 meters at 135 r.p.m. its specific speed is
  1.     175.4 r.p.m.
  2.     215.5 r.p.m.
  3.     241.5 r.p.m.
  4.     275.4 r.p.m
Answer: Option C
Question 4. The rise or depression of liquid in a tube due to surface tension will increase in size of tube will
  1.     Increase
  2.     Remain unaffected
  3.     May increase or decrease depending on the characteristics of liquid
  4.     Decrease
Answer: Option D
Question 5. The discharge of a depressed nappe is 6 to 7 percent __________ that of a free nappe.
  1.     Less than
  2.     More than
  3.     Equal to
  4.     None of these
Answer: Option B
Question 6. Which of the following turbine is preferred for 0 to 25 m head of water?
  1.     Pelton wheel
  2.     Kaplan turbine
  3.     Francis turbine
  4.     None of these
Answer: Option B

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