Module 9. Human factors
An experienced engineer fits the wrong seal during a routine component change. This is
• skill based.
• rule based.
• knowledge based.
manishsarin asking:
• what is the right answer and why?
Community comments: 1
• skill based.
• rule based.
• knowledge based.
manishsarin asking:
• what is the right answer and why?
Community comments: 1
Module 6. Materials & hardware
Corrosion products should be removed from magnesium alloys by the use of
• a solution of 10% by weight of chromic acid in distilled water with 0.1% by volume of sulphuric acid.
• a solution of 10% by volume of chromic acid in distilled water with 1% phosphoric acid.
• aluminium wool.
azfar92 asking:
• I came across with this exact same question from other question bank. However, the answer was by using 0.1% of sulphuric acid instead of 1% phosphoric acid.Just want to confirm which answer is true. Sulphuric acid or phosphoric acid.
Community comments: 1
• a solution of 10% by weight of chromic acid in distilled water with 0.1% by volume of sulphuric acid.
• a solution of 10% by volume of chromic acid in distilled water with 1% phosphoric acid.
• aluminium wool.
azfar92 asking:
• I came across with this exact same question from other question bank. However, the answer was by using 0.1% of sulphuric acid instead of 1% phosphoric acid.Just want to confirm which answer is true. Sulphuric acid or phosphoric acid.
Community comments: 1
Module 15. Gas turbine engine
Gas pressure through the turbine section will generally
• increase.
• remain the same.
• decrease.
charlie asking:
• y is it decrease?
Community comments: 2
• increase.
• remain the same.
• decrease.
charlie asking:
• y is it decrease?
Community comments: 2
Module 3. Electrical fundamentals
In a 4:1 step up transformer, what would give a reflected impedance of 1 kOhm?
• 1 kOhm.
• 16 kOhm.
• 4 kOhm.
luca92 asking:
• why??
Community comments: 1
• 1 kOhm.
• 16 kOhm.
• 4 kOhm.
luca92 asking:
• why??
Community comments: 1
Module 3. Electrical fundamentals
Potentiometers are used as a
• variable voltage source.
• variable resistor.
• variable current source.
chevychase asking:
• Potentiometers are used as voltage dividers are the not? they have 3 connections, surely a rheostat would be a better variable resistor?
Community comments: 2
• variable voltage source.
• variable resistor.
• variable current source.
chevychase asking:
• Potentiometers are used as voltage dividers are the not? they have 3 connections, surely a rheostat would be a better variable resistor?
Community comments: 2