WorksheetsFantasteec Minds: EEngineering Problems and How to Solve Them
Total questions: 10
Worksheet time: 4mins
(Easy)
Determine the number of poles of a 150 kW 230 volts alternator with a speed of 1800rpm at 60Hz.
(a)
(Average)
What type of curve is generated by a point that moves in uniform circular motion about an axis while travelling with a constant speed , v , parallel to the axis?
A. Cycloid
B. Epicycloid
C. Hypocycloid
D. Helix
(Easy)
What is the integral of
∫ tan u du = ??
(a)
(Average)
Solve for the value of x in the expression
(a)
(Difficult)
Name the three naturally occurring isotopes of hydrogen.
(a)
(Easy)
According to PEC only conductors (a) or larger are permitted to be connected in parallel to form a single conductor.
(Average)
How much heat (in KJ) is required to raise 7.5kg of water from 27°C to 54°C?
(a)
(Average)
This refers to force that enables boats and beach balls to float on water. It is the the upward-directed force that a fluid (either a liquid or a gas) exerts on an object that is partially or completely immersed in the fluid. It also explains why we can lift objects underwater more easily than on land.
(a)
(Difficult)
How much does a 30 lbf weigh on the moon? Gravitational acceleration in the moon is 5.47 ft/s2 and in earth is 32.2 ft/s2. Express the final answer in three decimal places.
(a)
(Easy)
The position of a particle moving along the x-axis is given by x(t) = t2 – t + 8, where x is in units of meters, and t is in seconds. Find the velocity of the particle when t = 5s.
A. 2 m/s
B. 5 m/s
C. 7 m/s
D. 9 m/s
