1- Describe, with the aid of diagrams, the structure and
functions of the airways as they transition from the trachea to the
terminal bronchioles.
2- Describe, with the aid of diagrams, the oxygen-haemoglobin
dissociation curve and how it relates to the function of
haemoglobin.
•What are the main characteristics of a perfectly competitive
industry? [5 marks]
•With aid of diagrams explain and illustrate the long run
equilibrium conditions of the perfectly competition
firm.
[10 marks]
Briefly describe the characteristics of cross-functional
business processes. Also, briefly describe at least three business
benefits of cross-functional business processes.
a) Briefly describe TWO (2) types of stepper motor that are
commonly used.
b) A linear induction motor drives a conveyor belt at speed of
50 km/h with a slip of 20% at 50 Hz and developed a thrust of 300
N. Determine:
i) Pole pitch of the motor.
ii) Power developed by the motor.
iii) Copper loss in the secondary side.
iv) The new value of synchronous speed if pole pitch is increase
to 0.5 m.
With the aid of diagrams describe the radical polymerization of
vinyl acetate using AIBN as initiator. Describe initiator
formation, monomer initiation, and propagation steps. In addition,
describe the various mechanisms by which chain termination (no
capacity for further growth) can occur.
Describe the various ways in which charge transfer could occur
(potential for further growth) for the polymerization described in
part (b) above.
1)Describe briefly the different types of d.c. distributors.
2. What are the advantages of a doubly fed distributor over
singly fed distributor ?
3)What is the purpose of interconnector in a d.c. ring main
distributor ?
4)What are the advantages of 3-wire distribution over 2-wire
distribution ?
5)8. Explain the use of rotary balancer in a 3-wire d.c.
distribution system
6)What is a booster ? With a neat diagram, explain how it can be
used on a feeder