1. Describe 4 different levels of the Canadian Court system - 16 marks (jurisdiction, etc.) Something with courts worth 4 marks.
2. Question on a three legged round table with a weight placed on a certain given spot. Using moments of force, find weight on each leg.
3. Hot air balloon, drops bag…find velocities and position at 2 different times which are given, and find final velocity and time to hit the ground.
4. Box is on a ramp and just starts to slide, weight not given. Coefficient of friction, length of ramp and height given. Find velocity at bottom, and how much velocity to push it back up the ramp.
5. Safety question…had to do with how to do incident reports and why. A bunch of questions about radiation, effects, units, safety etc…stuff I’d never seen before in my text books.
6. Corrugated Morrision furnace…given depth of corrugations and distance apart…figure out max thickness.
7. Full hemi head….calculate how thick and prove it meets code (10), now add a manhole…dimensions not given? Now how thick?
1) One pump is able to fill a tank in 19 hours and another pump can fill the tank in 21 hours and 20mins
a) If both pumps work together how long will it take to fill the tank 12)
b) If pump #2 was filling a second tank while pump #1 was still filling the first tank how long would it take to fill # 1 tank 8)
2) A)An object weighs 8N in air. When attached to a spring and lowered into water, the force on the spring reads 6.5N what is the density of the object
B) Draw a free body diagram of the object
3) The area to be stayed on the tube sheet of a locomotive boiler is 875cm2.. it is to be braced with two diagonal stays of SA-336 GR. F22a. What diameter of brace would be required to safely carry 1137.66 KPA? L= 75 cm l=73 cm S=86187 KPA
4) Something about calculating MAWP for a semiellipsoidal dished head with a flanged in manhole
5) A) define poisons ratio
b) A7.5 cm square stock steel bar is subject to an axial tensile force of 300KN, the width of the bar is found to be 7.4997cm. Determine the value of poisons ratio E= 210GPA
6) a)define corrective and preventative maintenance
B) 6 benefits to preventative maintenance
c) Block diagram of planning and scheduling process
7) A) the differences between feasibility study and a detailed design
b) List 5 duties of operations personnel during the construction phase of a new plant
c) can’t remember the last partABSA 2nd Class Part A1 Questions
1. An object is allowed to fall from rest from a height of 70m and at exactly the same time of release a projectile is fired up with a velocity of 35m/s. When and where will they pass each other.
2. Given load of 2.4 kN, effort of 120N radius of 125 mm and pitch of 124mm:
Find:
a) VR
b) MA
c) Work done on load
d) Work done by effort
3. A shearing machine cuts steel at 110 mm and 20mm. The work required is 7.5J/mm2 The radius of gyration of the flywheel is 1m. The flywheel rotates at 120 RPM. If the reduction is speed is 12.5% find:
Find:
a) Mass of the flywheel
b) Torque required to return to original speed in 2.5 sec
4. Calculate the K.E. and velocity of a 35 kg mass on an izod machine, which is raised 60° before impact and goes to 40° after. Also find the K.E. after impact. The arm of the machine is 1.65m long.
5. A solid steel cylinder 25mm in dia. and 25mm long is allowed to roll from the top of an incline 1.2m long. The angle of the incline is 20° to the horizontal. Assuming no frictional losses and no slip find the velocity at the bottom of the incline.
6. A beam 13.6 m long weighs 104 kg/meter length .It also carries loads of 1.5 tonnes and 3 and 4 tonnes at 3m, 5m and 11m. Find the reactions.
7. A venturi with a .3m dia. has a press of 185 Kpa and 125kpa with a flow of 7250l/min. Find the throat diameter .Cd =.97
a) A HRT boiler has 250m3 of surface area and runs at 1700 Kpa
b)
c) How many safeties are needed?
d) If firing at maximum fire and all safeties open how high can the pressure
e) rise?
f) What’s the maximum blowdown range of each safety?
g) What is the setting of the highest safety?
h) What is the range if the MAWP is 1700 Kpa
i) Define popping point pressure
ABSA 2nd Class Part A1
Sept 7 2010
1.A box rests on a rough table and is just about to slip when pulled by a string inclined at an angle ѳ to the table. U = 0.19
Find the tension in the string when:
a) Ѳ is equal to 24⁰
b) Ѳ is equal to the angle of friction
2. A package moving up in an elevator at a uniform velocity of 5m/s fallsoff and strikes the bottom of the shaft in 1.6s
a) Time to max height
b) Height when package fell
c) Distance from bottom of shaft at 0.2 seconds
3.List 20 losses in 4 areas that will contribute towards the cost of an accident in an industrial plant
4. A shaft 275mm in diameter can safely transmit 2.2 MW while turning at 110 rpm. Calculate the power that can be safely transmitted by a shaft 375mm in diameter while turning 85 rpm.
5. List the four main types of law that are of interest to power engineering personnel. Describe the four types of laws.
ABSA 2nd Class Part A Paper 1 Questions (Series 06-F)
1. When setting up a motivational program for your workplace, the understanding of the following basic needs must be addressed 1) physiological 2) security 3) belonging 4) self-esteem 5) self-actualization. Explain what these needs are and give possible ways of satisfying them in the workplace.
2. A 2 KG ball is suspended from a 3 m cable attached to a spike in the wall. The ball is pulled out so that the cable makes a 70 degree angle with the wall and then is released. 10 Joules of energy are lost during the collision with the wall. What is the maximum angle between the cable and the wall?
3. A lifting device on a clarifier rake has square threads with a mean radius of 12.5 mm and a lead of 4 mm. The coefficient of static friction is 0.25 between the screw and the collar. Determine the moment “M” that must be applied to raise the rake if the downward force on the rake is 20000 N.
4. A concrete column with an internal steel reinforcement has an overall cross section in the form of a square with the sides being 250 mm. The column carries a load of 304 kN. The stress in the steel are 40 MPA and in the concrete 4 MPA. Calculate a) cross section of the steel reinforcement.
b) % load carried by the steel.
5. A hollow shaft of 0.05 m OD and 0.03 m ID transmit power at 100 RPM. The applied torque is 1540 N-m which causes the shaft to twist 2 degrees over 3 meters of length. Find: a) shear stress in the shaft
b) modulus of rigidity
c) power transmitted by the shaft
6. A tank is filled in 20 minutes from a constant level reservoir. The pump is 85% efficient. Calculate the power needed to fill the tank.
7. a) A blank unstayed head with pressure on the concave side has a head diameter of 2069 mm. It is a segment of a sphere dished to a radius of 900 mm. MAWP = 2430 kPa. The head is made of SA-285 Grade A steel with an S of 88.9 MPA at a temperature of less than 250 degrees Celsius. Find the thickness required for this head. (Using Section 1)
b) Confirm by calculation if this head is of a thickness to meet code requirements.
2RA1 Test
( I chose to skip questions 3 and 4 and don't remember much about them so I just wrote down what came to my memory.)
1. a)Calculate the thickness of a blank unstayed dished head with the pressure on the concave side if it has a diameter of # and the head is dished to 800mm. The maximum allowable pressure is # and the material of the head is SA-285. The vessel is operated at a temperature of no more than 350 degrees Celcius. The vessel has a weld strength factor of 1. 6 marks
b) Prove that the thickness meets code requirements 14 marks
2) Show the required thickness of the stays of a flat plate 11mm in diameter with stays having a pitch of 150mm between the centers and a design pressure of # with a maximum allowable stress value of #.
b) What is the required thickness of a staybolt if the MAS is #?
c) Calculate the required distance between two openings in a shell
diameter of openings - 100mm
diameter of shell #
design pressure #
stress value #
thickness #
3. define:
a) alteration
b) regulator authority
c)?
d)?
e)?
f)? 2 marks each
b) What are the 3 requirements for a vessel that contains adryhous ammonia in Canada? 8 marks
4. a) What are the 4 aspects of planning.
b) What are the three steps management must take for formal planning? 1 mark
c) Give 5 terms of planning and define them.
5. a) With aid of a sketch explain centripetal force. 4 marks
b) A flywheel comes to a speed of 240rpm in 4 seconds. Then a brake brings the flywheel to a stop in 75 seconds. The total amount of rotations is 600. Calculate the total run time of the flywheel.
6. A 6kg mass is held up by a 3m long string and swung in a conical pendulum at 74rpm..
i)Calculate the tension on the string
ii)Calculate the radius of rotation
7. A 350mm diameter shaft attached to a motor is turned to 230mm.
a) Calculate the power of the larger shaft if the shaft if it is rotated at 63rpm.
b) Calculate the power loss after the shaft is turned from 350mm to 230mm