Written by students who passed Immediately available after payment Read online or as PDF Wrong document? Swap it for free 4.6 TrustPilot
logo-home
Document preview thumbnail
Preview 3 out of 17 pages
Exam (elaborations)

ABSA 4a EXAM STUDY GUIDE 2026/2027 ACCURATE QUESTIONS WITH CORRECT DETAILED SOLUTIONS || 100% GUARANTEED PASS NEWEST VERSION

Document preview thumbnail
Preview 3 out of 17 pages

ABSA 4a EXAM STUDY GUIDE 2026/2027 ACCURATE QUESTIONS WITH CORRECT DETAILED SOLUTIONS || 100% GUARANTEED PASS NEWEST VERSION

Content preview

Thompson Rivers University Power Engineering 4th Class Certificate Save




ABSA 4A
4.0 (1 review)



Students also studied


Flashcard sets Study guides



ABSA 4TH CLASS PART A REVIEW Power Engineering 4A 4th Class Power Engineering Part A ... 4th

286 terms 1,884 terms Teacher 637 terms 94




Luke_Taje Preview monica_houlihan4 Preview incredibletracey Preview




Terms in this set (1892)



The typical time required to heat a fluidized bed to C
ignition temperature prior to the introduction of coal is:
Select one:
a. Two hours
b. Three hours
c. One hour
d. 30 minutes


When welding thick materials, proper weld groove C
selection and preparation allows for:
Select one:
a. a quick weld
b. proper heat treatment
c. full penetration
d. omitting the root pass


An interrupted pilot of an automatic boiler: A
Select one:
a. Ignites, is proven stable and extinguishes after the
main flame is established
b. Is one that has been extinguished by an inadequate
flame signal
c. Ignites before the main burner ignites, and is
extinguished when the main burner is extinguished
d. Burns continuously, like that in a home furnace


In a fluidized bed boiler, a gradual loss of the fluidized D
bed, including fuel (carbon) particles, is due to:
Select one:
a. Priming
b. Sootblowing
c. Uplift
d. Carryover

,The test material for a penetrant test (PT) must be: D
Select one:
a. ferrous
b. non-ferrous
c. porous
d. non-porous


If your plant maintenance department neglects oil A
changes, filter replacement, and bearing lubrication,
your plant will eventually need more unscheduled
___________ maintenance.
Select one:
a. Emergency
b. Preventative
c. Routine
d. Project


The holder of a Certificate of Competency, the B
classification of which authorises him or her to act as a
engineer, may sketch, construct, install, operate, repair,
and give advice on all things pertaining to any _____ in
which that person is employed.
Select one:
a. Welding shop
b. Power plant
c. Fish plant
d. Hydro plant


Which of the following is a single pass boiler? D
Select one:
a. HRT
b. Scotch marine
c. Packaged firetube
d. Vertical firetube


Iron and steel may be magnetized by rubbing the metal D
with a:
Select one:
a. Stainless steel
b. Steel wool
c. Brass rod
d. Magnet


The apparatus which converts current signals to C
pneumatic and pneumatic to current signals is called a:
Select one:
a. Transformer
b. Inverter
c. Transducer
d. Converter

, Before a steam or air atomizing oil burner is removed A
from a boiler furnace, the burner should be blown out
with:
Select one:
a. Steam or air
b. High temperature solvent
c. Coal oil
d. Solvent


Which of the following emissions is NOT considered a A
gaseous pollutant?
Select one:
a. Nitrogen
b. Methane
c. Sulphur oxides
d. Carbon monoxide


A thermostatic steam trap is controlled by the: B
Select one:
a. Bucket, which flips when filled with condensate
b. Temperature difference between condensate and
steam
c. air pressure built up on top of disk
d. Difference in velocity between condensate and
steam


A typical application of forged steel in a power plant is: D
Select one:
a. Ash handling systems
b. Superheated steam lines
c. Superheated steam lines
d. Pipe fittings


A disadvantage of an electric boiler is that it: A
Select one:
a. Is very expensive to operate
b. Is inefficient
c. Requires alternating current
d. Has no chimney


The amount of air required to supply just enough D
oxygen for complete combustion is called the:
Select one:
a. Excess air
b. Perfect air
c. Primary air
d. Theoretical air


"Transpiration" is the process where: C
Select one:
a. dissolved oxygen is expelled from water
b. water vapour goes through a phase change
c. plants release water
d. animals inhale oxygen

Document information

Uploaded on
June 29, 2026
Number of pages
17
Written in
2025/2026
Type
Exam (elaborations)
Contains
Questions & answers
Free
Download

Wrong document? Swap it for free Within 14 days of purchase and before downloading, you can choose a different document. You can simply spend the amount again.
Written by students who passed
Immediately available after payment
Read online or as PDF

Sold
19
Followers
0
Items
1639
Last sold
4 hours ago


Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Working on your references?

Create accurate citations in APA, MLA and Harvard with our free citation generator.

Working on your references?

Frequently asked questions