ABSA Practice 4A – 1 Latest Q & A
(4-081-1.16) The output voltage of a shunt DC generator is varied by adjusting the:
Select one:
a. Pole piece air gaps
b. Output current
c. EMF
d. Field rheostat
d
(4-085-1.11) The Bourdon tube is often shaped in the form of a "C", having an arc span ...
ABSA Practice 4A – 1 Latest Q & A
(4-081-1.16) The output voltage of a shunt DC generator is varied by adjusting the:
Select one:
a. Pole piece air gaps
b. Output current
c. EMF
d. Field rheostat
d
(4-085-1.11) The Bourdon tube is often shaped in the form of a "C", having an arc span of about:
Select one:
a. 270 degrees
b. 90 degrees
c. 180 degrees
d. 200 degrees
a
(4-037-2.7) The extinguishing medium for a Class "D" fire is:
Select one:
a. Carbon dioxide
b. Dry powder
c. Aqueous film forming foam
d. Dry chemical
b
Besides a flashlight, what else is used during a visual inspection of a weld?
Select one:
a. microscopes
b. fluorescent lights
c. magnifying glasses
d. chisels
c
A PLC needs to be able to check itself for safe operation. This is called:
Select one:
a. Start up Check
b. maintenance scan
c. housekeeping scan
d. Self check
c
(4-050-1.1) A check valve____________________.
Select one:
a. Allows flow in one direction only.
b. Uses a heavy spring for setting.
c. requires an inspector's seal to be installed.
d. Has a locking spindle for locking out flow for safety.
a
,(4-047-1.6) Submerged arc welding is a(an)_____ welding process.
Select one:
a. Oxy-acetylene
b. AC electric
c. AC or DC electric
d. DC
c
An SOP is used to
Select one:
a. Make sure each operator runs equipment in a consistently safe and efficient manner
b. Keep track of maintenance costs
c. Help plan equipment maintenance activities
d. Develop PFDs and P&IDs
a
(4-010-2.7) A 7m long bar is pivoted at 2m from the left end. A force of 60N is applied downwards on
the left end and a force of 20N is applied downward on the right end. What would be the clockwise
and counter-clockwise moments about the pivot, due to each force, and in which direction would the
bar rotate?
Select one:
a. 120Nm counter-clockwise, 100Nm clockwise, clockwise rotation.
b. 120Nm counter-clockwise, 100Nm clockwise, counter-clockwise rotation.
c. 80Nm counter-clockwise, 100Nm clockwise, counter-clockwise rotation.
d. 60Nm counter-clockwise, 100Nm clockwise, clockwise rotation.
b
(4-014-2.1) What is the absolute pressure if the gauge pressure in a steam cylinder is 200kPa?
(Atmospheric pressure is 101.3 kPa.)
Select one:
a. 200 kPa
b. 200.3 kPa
c. 301.3 Pa
d. 301.3 kPa
d
4-049-2.8) The three general types of flange connections are the screwed, the Van Stone and the
_____ .
Select one:
a. Ring joint
b. Raised face
c. Welded
d. Bolted
c
4-056-1.8) Boiler chimneys are commonly lined with:
Select one:
a. Insulation
b. Rubber
c. Fire brick
d. Concrete
, c
(4-047-1.15) The filler rod in braze welding is usually made of:
Select one:
a. Alloy steel
b. Brass
c. Aluminium
d. Bronze
d
(4-086-1.2) A sensing element sends its signal to
Select one:
a. a Recorder
b. an air line
c. a Conveyer
d. a Transmitter
d
When using a two-way radio, what do you say when you've heard the message but need to put the
caller on hold?
Select one:
a. Roger that
b. Copy that
c. Standby
d. Come again
c
(4-083-1.7) High voltages include all voltages above _____ V.
Select one:
a. 750
b. 1000
c. 15,000
d. 220
a
(4-052-2.3) A corrugated furnace gives required strength with thinner metal, increases heating surface
and:
Select one:
a. Decreases combustion turbulence
b. Allows for differential expansion and contraction
c. Adds to the overall material cost of the unit
d. Increases the boiler mass
b
(4-085-1.7) A Bourdon tube may be manufactured in the shape of a helix so that
_______________________ than a standard bourdon tube:
Select one:
a. It has enough power and rotation to move the pens of a recorder without the use of gears
b. Higher pressures can be sensed
c. They can fit in narrower enclosures
d. Its final output has less travel
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller LectDan. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R234,35. You're not tied to anything after your purchase.
