Questions and Verified Answers| All
Modules Covered| 100% Correct| Grade A |
2026/2027 Guide
An electric motor driving a welding generator is rated at 25 kW. Find the
cost of running this on full load, per day of 6 hours, with electrical energy
at 6.69p per Unit?
- Correct Answer - £10.04
A 100W light bulb is to be left on in a workshop for security purposes for
a ten hour period overnight during the factory shut down. Calculate the
cost of this over a seven day period at a cost of 6.69p per unit?
- Correct Answer - £46.83
The most common metal used in cables to conduct electricity is?
- Correct Answer - copper
The type of transformer used for welding is known as?
- Correct Answer - step-down
A step down transformer is used to?
- Correct Answer - reduce mains voltage
,The material that is most commonly used for the inner core of cables
that carry an electric supply is:
- Correct Answer - copper
The chemical symbol used to show iron is:
- Correct Answer - Fe
The correct name for the form of supply shown is known as:
- Correct Answer - rectangular hollow section
The rate at which heat passes through a specified material is referred to
as:
- Correct Answer - thermal conductivity
An example of a gas that is odourless, heavier than air and chemically
non reactive would be:
- Correct Answer - argon
The formula used to calculate the volume of a solid round bar section
would be:(Given that r = Radius l = Length d = Diameter)
- Correct Answer - R² x π x L
, A total of 80 welds have been inspected. 7 of the welds are found to be
defective. The percentage of defective welds is:
- Correct Answer - 8.7%
The type of welded joint required as shown by the welding symbol is a:
II
- Correct Answer - square edge butt weld
0 Kelvins is what in degress celsius?
- Correct Answer - -273C
What type of joint is this?
- Correct Answer - A double bevel butt
What type of joint is this?
- Correct Answer - an open square butt
What type of joint is this?
- Correct Answer - A compound joint
The weld profile is said to be which?
- Correct Answer - concaved