Quiz
Kingdom of Saudi Arabia
Ministry of Higher Education
Majmaah University
College of Engineering
-----------------------------------------------------------------------------------------------------------------------------Academic Year:- 1434-1435 / 2013-2014
Level:-5 CE
Subject:-Hydraulics-1
Time:- 40 Minutes
Question-1
Term:- Odd
Max. Marks:10
Subject Code:- 240 CE
Write the dimensions (MLT form) of the following:
(i) Pressure
(ii) viscosity
(iii) Energy
(iv) Discharge
Question-2
Find the depression in mercury in a capillary tube 2mm diameter. Take surface
tension = 472 dyne/cm, angle of contact = 140 and specific gravity of Hg = 13.6?
Question-3
In an experiment to determine the surface tension, the pressure in side of droplet of
water of 0.5 cm was 0.6 gm/cm2. Find the surface tension.
Question-4
the following equation satisfy the relation between distance y from a smooth
boundary and the velocity v of oil viscosity 5 poise.
V = 125y2 – y 3-15 (cm/sec) Calculate the shear stress at y = 0 and 10 cm.
Question-5
A piston of 12 cm diameter and 8.5 cm long slides concentrically inside a tube.
Calculate the diameter of the tube, if an oil of 2 poise is used in the annular gap between the piston
and the tube and piston is required to develop a resistance of 1050 Newton when moving with a
velocity of 0.9 m/sec.