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In pipe flow, applying the Bernoulli equation from one section (upstream side) to another section (downstream side) the total energy on one section (downstream side) is expressed as:
In how many ways can you line up 5 persons if two persons refuse to follow each other?
In how many ways can 5 engineers and 4 nurses be arranged in a round table if the nurses insisted to be sitting side by side?
In how many ways can 4 couples be seated at a round table with the men and women alternating?
In how many days will the original gang of pipe layers, under the supervision of foreman B, finish the original pipe-laying job?
In fluid flow, if the fluid travels parallel to the adjacent layers and the paths of individual particles do not cross, the flow is said to be:
In an organization there are CE’s, GE’s and ME’s. The sum of their ages is 2160
In an open channel flow, the discharge at a certain section can be measured by the use of the weir, given by the equation: $Q = \frac{8}{15}C \sqrt{2g} ~ \tan (\frac{1}{2}\theta) ~ H^{5/2}$
In an open channel flow, the discharge at a certain section can be measured by the use of the equation: $Q = \frac{2}{3}C \sqrt{2g} ~ LH^{3/2} + \frac{8}{15}C \sqrt{2g} ~ \tan (\frac{1}{2}\theta) ~ H^{5/2}$
In an open channel flow, hydraulic jump occurs when:
In a truss, when three members meet a joint, two of the members are parallel, and the joint carries no load, the third non-parallel member is a zero-force member.
In a system of parallel pipes, which of the following is true:
In a survey concerning the smoking habits of consumer it was found that 55% smoke cigarette A, 50% smoke cigarette B, 40% smoke cigarette C...
In a prison camp, 100 soldiers have been given provisions good only for 10 days. If five soldiers die every day, except on the first day, in how many days will the provisions last?
In a lifting machine, a load of 50 kN is moved by a distance of 10 cm using an effort of 10 kN which moves through a distance of 1 m, the efficiency of the machine is…
In a gambling game a man is paid \$50 if he gets all heads or all tails when 3 coins are tossed, and he pays out \$30 if either 1 or 2 heads show. What is his expected gain?
In a family of five children, what is the chance that there are three boys and two girls?
In a company meeting, coffee and cake were served during the break. Of the 50 people who attended the meeting, 30 ate cake while 34 took coffee.
In a class experiment, a student needs 5 liters of 6% solution. He found a 4% and a 10% solution in the laboratory. How many liters of each solution should he mix in order to obtain 5 liters of 6% solution?
In a class experiment, a student needs 5 liters of 6% solution. He found a 4% and a 10% solution in the laboratory. How many liters of each solution should he mix in order to obtain 5 liters of 6% solution?
In a certain town there are 1000 married couples. Two-thirds of the husbands who are taller than their wives are also heavier and three-quarters of the husbands who are heavier than their wives are also taller.
In a certain municipality, all seven-digit telephone numbers begin with 321. How many telephone numbers maybe assigned to that municipality if the last four digits should not begin or end in zero?
In a bowling game, how many ways can the 10 pins fall in the first throw?
In a 1:2:4 job mix concrete, how many parts is fine aggregates?
Imagine a cube to measure 5 units on an edge, and to have its total surface area blue. Without the aid of a figure or a cubical
If z varies directly as x and inversely as the square of y, and z = 1/3, x = 4, and y = 6, find z when x = 12 and y = 4.
If x varies directly as y and inversely as z and x = 14 when y = 7, and z = 2. Find x when y = 16 and z = 4.
If x + y = 5 and xy = 6, find the value of x^3 + y^3.
If two points in the number line have coordinates 1 and 7, find the coordinate of a point on the line which is twice as far from 1 as from 7.
If three coins are tossed, how many possible ways are there of at least one coin showing tails?
If the value of the piece of property decreases by 10% while the tax rate on the property increases by 10%, what is the effect on the taxes?
If the power of an engine grows by 10% when the number of its cylinders is increased by one, which of the following is closest to the ratio of the power of a 9-cylinder engine to that of a 12-cylinder engine?
If the power of an engine grows by 10% when the number of its cylinders is increased by one, which of the following is closest to the ratio of the power of a 9-cylinder engine to that of a 12-cylinder engine?
If the population of a city increases by 10% each year, during which year will the population doubled?
If the middle term of the expansion of $(x^3 + 2y^2)^n$ is $Cx^{18} y^{12}$, find $C$
If the interest rate on an account is 8.5% compounded yearly, approximately how many years will it take to triple the amount?