Search
An air-standard Otto cycle operates with 300 ๐พ and 95 kPa at the start of theย
compression stroke. The compression ratio is 9.5 and the maximum temperature ofย
the cycle is 1100 K. On the basis of a cold air-standard analysis, using ๐๐ฃ =
0.718
๐๐ฝ
๐๐โ๐พ
and ๐๐ = 1.005
๐๐ฝ
๐๐
โ๐พ
, determine theย
(a) temperature at the end of the compression stroke, in K
(b)peak pressure, in kPa
(c) Heat Addition, kJ/kg
(d) net work of the cycle, kJ/kg
(e)thermal Efficiencyย
Express one ton of refrigeration in terms of kJ/hour.
You are employed as a quality control engineer of a soft drink company that makes soft drinks in volumes of 300ml. Suppose, a client claims that your company is cheating the public. He files a legal suite against your company that the fill volume of your soft drink is consistently less than 300ml and the client produces 10 bottles with fill volumes ranging from 288ml to 298ml as a proof of his claim. As a technical person how would you go about to statistically defend your company in the courts of law
Calculate the gauge
pressure at a distance of 100 m from the storm eye.
A tie bar on a vertical pressing machine is 200cm long and 75mm square in cross section. Determine the stress and extension produced in the bar when it is subjected to an axial load of 250kN. Take E=2.1*10^5N/mmยฒ
A race car enters the circular portion of a track that has a radius of 70 m. When the car enters the curve at point P, it is traveling with a speed of 120 km/h that is increasing at 4 m/s2 . Four seconds later, determine the x and y components of velocity and acceleration of the car.
You are employed as a quality control engineer of a soft drink company that makes soft drinks in volumes of 300ml. Suppose, a client claims that your company is cheating the public. He files a legal suite against your company that the fill volume of your soft drink is consistently less than 300ml and the client produces 10 bottles with fill volumes ranging from 288ml to 298ml as a proof of his claim. As a technical person how would you go about to statistically defend your company in the courts of law?
A pump is driven by an electric motor running at 1145 rpm and the speed of the compressor is 920rpm. If the diameter of the motor pulley is 160mm, calculate the diameter of the pump pulley
A 2 m copper wire with square cross-section of 1 mm by 1 mm stretched 1.51 mm when it supported a 10 kg mass. Suppose you cut a length of this wire 0.2 m long and hang a 10 kg mass from it. How much will this shore wire stretch?
A 12 - diametrical pitch spur gear having 21 teeth rotates at 2000 rpm and drives a pinion at 750 rpm.
Calculate:
a) The number of teeth on the pinion
b) The pitch diameter of the gear
c) The pitch diameter of the pinion
NB: Assume the pitch diameter is measured in inches
