Q2.Find the equivalent circuit from no - load and short -
circuit test of a 3 - phase. 14.92 kW, 400 V, 6 - pole induction
motor from the following test results (line values): No - load: 400
- V, 11 A, p.f. = 0.2 Short - circuit: 100 - V, 25 A, p.f. = 0.4
Rotor Cu loss at standstill is half the total Cu loss.
Questions regarding an open circuit transofrmer test:
1-What causes the primary current to be non zero when the
secondary winding is open circuied?
2-What is the main type of power loss being measured in an open
circuit test?
3-The back-EMF equation tells us that the peak flux density is
proportional to the AC supply voltage. Now knowing that the current
which flows in the transformer under open-circuit conditions is the
current (or mmf) which produces the magnetic flux density, explain...
What is the purpose of applying analytical procedures in the
evaluation
and review phase of the audit? Is it important to develop
expectations as
part of performing these final analytical procedures?
Describe for the following HPLC procedures: (1) What is meant
by? (2) What is the purpose of? (3) How is it done?
(a) Degassing the mobile phase
(b) Filtering the mobile phase
(c) Modifying the mobile phase
(d) Endcapping the stationary phase
(e) Pulse-dampening the mobile phase
(f) Introducing a Guard column
(g) Introducing a Suppressor column
Look at all the interfaces of a Daniell Cell. Assume an open
circuit (what is that?) and describe the equilibrium at each
interface
(Terminal-Electrode-Solution-Solution-Electrode-Terminal). Derive
an equation for the voltage of the cell that takes in account all
the values that determine each of the equilibria (which do not
cancel). Which cancel nearly? Why? When not? I saw a previous
identical question of this and the person didn't answer what was
asked. What is really important here that I need...
An examination of part of an organisation's procedures and
methods for the purpose of evaluating efficiency and effectiveness
in the manufacturing department is what type of audit?
compliance audit.
financial statement audit.
production audit.
performance audit.
The main purpose of risk assessment procedures is to
Obtain an understanding of the entity and its environment,
including its internal control, to assess the risks of material
misstatements at the financial statement and assertion levels
Test the operating effectiveness of controls in preventing, or
detecting and correcting, material misstatements at the assertion
level
Detect material misstatements at the assertion level.
All of the given choices are main purposes of risk assessment
procedures
Inquiries directed towards those charged with governance...