3rd TSSA Part A2 - Test (III) 2025/2026
Exam Questions with Detailed Verified
Answers (100% Correct Answers) |
Already Graded A+
What is the peak-to-peak value of an alternating current if the rms value is
12 A? - 🧠ANSWER ✔✔33.94 A
Electrostatic precipitators have an efficiency of greater than: - 🧠ANSWER
✔✔95%
The purpose of the bolted-on jacket on some plug valves is to: - 🧠ANSWER
✔✔Add heating to a non-jacketed existing valve.
List the ways that butterfly valves can be installed into a piping system:
1. Welded.
2. Unions.
3. Flanged.
4. Wafer. - 🧠ANSWER ✔✔3, 4
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
,Wet pipe sprinkler systems are found in:
1. Office buildings.
2. Stores.
3. Manufacturing facilities.
4. Hotels.
5. Health care facilities. - 🧠ANSWER ✔✔1, 2, 3, 4, 5
Which of these is the "Boiler, Pressure Vessel and Pressure Piping Code"
? - 🧠ANSWER ✔✔CSA B51
The maximum temperature of fluids handled by a diaphragm valve must be
below the temperature limit for the: - 🧠ANSWER ✔✔Diaphragm material
The most frequently used materials for power piping systems are:
1. Inconel 800 H.
2. Alloy steels.
3. Low carbon steels.
4. Galvanized steel.
5. Austenitic stainless steels - 🧠ANSWER ✔✔2, 3, 5
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
,In a magnetic circuit, the magnetic flux is the equivalent of electric _____ in
an electric circuit. - 🧠ANSWER ✔✔Current
An insulating material may be defined as one which: - 🧠ANSWER
✔✔Transmits heat poorly
Clear definitions for terms and equipment relating to refrigeration and air
conditioning equipment are defined in the _____. - 🧠ANSWER ✔✔CSA-
B52
Armature reaction _____ the main field of a generator. - 🧠ANSWER
✔✔Distorts
Viscosity of fuel oil _____ as the temperature increases and becomes
nearly constant, above 120°C. - 🧠ANSWER ✔✔Decreases
The armature core in a DC machine is made of: - 🧠ANSWER ✔✔Soft iron
laminations.
The purpose of the AC kilovar meter is to: - 🧠ANSWER ✔✔Measure the
reactive power being generated by the AC generation system.
Calculate the maximum allowable working pressure, in kPa, for a watertube
boiler tube, which is 73.5 mm O.D. and has a minimum wall thickness of
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
, 4.71 mm. The tube is strength-welded into place in the boiler and is located
in the furnace area of the boiler. Tube material is carbon steel, SA-192,
with a mean wall temperature of 280°C. - 🧠ANSWER ✔✔11.54 MPa.
Centrifugal type steam separators have _____ sets of baffles: - 🧠ANSWER
✔✔2
Arrange into correct sequence, the following steps in the typical start up of
a steam system.
1. Check that each trap is working properly, to prevent an unexpected
build-up of condensate in the steam line.
2. All low point drain valves must be opened wide. These are usually
located upstream of all the trap stations and the supply to steam turbines
inlet valves.
3. Continue opening the main header valve, as the steam pressure rises.
4. Crack open the bypass around the main header steam admission valve,
if so equipped. You should hear steam entering the header.
5. Check each low point drain for the presence of condensate.
6. If a bypass is not installed, crack open the main header steam admission
valve.
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
4
Exam Questions with Detailed Verified
Answers (100% Correct Answers) |
Already Graded A+
What is the peak-to-peak value of an alternating current if the rms value is
12 A? - 🧠ANSWER ✔✔33.94 A
Electrostatic precipitators have an efficiency of greater than: - 🧠ANSWER
✔✔95%
The purpose of the bolted-on jacket on some plug valves is to: - 🧠ANSWER
✔✔Add heating to a non-jacketed existing valve.
List the ways that butterfly valves can be installed into a piping system:
1. Welded.
2. Unions.
3. Flanged.
4. Wafer. - 🧠ANSWER ✔✔3, 4
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
,Wet pipe sprinkler systems are found in:
1. Office buildings.
2. Stores.
3. Manufacturing facilities.
4. Hotels.
5. Health care facilities. - 🧠ANSWER ✔✔1, 2, 3, 4, 5
Which of these is the "Boiler, Pressure Vessel and Pressure Piping Code"
? - 🧠ANSWER ✔✔CSA B51
The maximum temperature of fluids handled by a diaphragm valve must be
below the temperature limit for the: - 🧠ANSWER ✔✔Diaphragm material
The most frequently used materials for power piping systems are:
1. Inconel 800 H.
2. Alloy steels.
3. Low carbon steels.
4. Galvanized steel.
5. Austenitic stainless steels - 🧠ANSWER ✔✔2, 3, 5
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
,In a magnetic circuit, the magnetic flux is the equivalent of electric _____ in
an electric circuit. - 🧠ANSWER ✔✔Current
An insulating material may be defined as one which: - 🧠ANSWER
✔✔Transmits heat poorly
Clear definitions for terms and equipment relating to refrigeration and air
conditioning equipment are defined in the _____. - 🧠ANSWER ✔✔CSA-
B52
Armature reaction _____ the main field of a generator. - 🧠ANSWER
✔✔Distorts
Viscosity of fuel oil _____ as the temperature increases and becomes
nearly constant, above 120°C. - 🧠ANSWER ✔✔Decreases
The armature core in a DC machine is made of: - 🧠ANSWER ✔✔Soft iron
laminations.
The purpose of the AC kilovar meter is to: - 🧠ANSWER ✔✔Measure the
reactive power being generated by the AC generation system.
Calculate the maximum allowable working pressure, in kPa, for a watertube
boiler tube, which is 73.5 mm O.D. and has a minimum wall thickness of
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
, 4.71 mm. The tube is strength-welded into place in the boiler and is located
in the furnace area of the boiler. Tube material is carbon steel, SA-192,
with a mean wall temperature of 280°C. - 🧠ANSWER ✔✔11.54 MPa.
Centrifugal type steam separators have _____ sets of baffles: - 🧠ANSWER
✔✔2
Arrange into correct sequence, the following steps in the typical start up of
a steam system.
1. Check that each trap is working properly, to prevent an unexpected
build-up of condensate in the steam line.
2. All low point drain valves must be opened wide. These are usually
located upstream of all the trap stations and the supply to steam turbines
inlet valves.
3. Continue opening the main header valve, as the steam pressure rises.
4. Crack open the bypass around the main header steam admission valve,
if so equipped. You should hear steam entering the header.
5. Check each low point drain for the presence of condensate.
6. If a bypass is not installed, crack open the main header steam admission
valve.
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
4
