4th TSSA Part B - Unit 1 2025/2026 Exam
Questions Marking Scheme New Update
| A+ Rated
R4B01-02-01-02 A form of lubrication that requires continual motion of a
shaft or surface is: - 🧠ANSWER ✔✔Fluid film lubrication
R4B01-02-03-11 The lubricant for an anti-friction bearing: - 🧠ANSWER
✔✔Could be a semi-solid lubricant
R4B01-02-02-04 A journal bearing: - 🧠ANSWER ✔✔Supports a shaft
R4B01-02-03-12 A thrust bearing which does not utilize the oil wedge
principle of lubrication is the: - 🧠ANSWER ✔✔Collar type
R4B01-01-03-17If an oil must flow at a very low temperature[comma] it
must have the following additive: - 🧠ANSWER ✔✔Pour point depressant
R4B01-02-02-08 A large journal bearing which is running hotter than
normal can be cooled by: - 🧠ANSWER ✔✔Loosening the bearing caps
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
, R4B01-01-02-04 The kind of grease used for heavily loaded machinery
operating at slow speeds is the: - 🧠ANSWER ✔✔Specialty grease
R4B01-01-03-18 Which type of oil produces higher fluid friction? -
🧠ANSWER ✔✔High viscosity oil
R4B01-02-43-14 When inspecting a dismantled bearing, the first indication
of a failing bearing is: - 🧠ANSWER ✔✔Roughness
R4B01-01-03-20The instrument that measures the viscosity of an oil at a
certain temperature as it flows through a small diameter tube[comma] is
called: - 🧠ANSWER ✔✔A Saybolt viscometer
R4B01-02-03-09 A collar thrust bearing: - 🧠ANSWER ✔✔Has boundary
lubrication
R4B01-01-02-08 A material that is commonly used as a solid lubricant is: -
🧠ANSWER ✔✔Molybdenum disulfide
R4B01-02-03-13 An anti-friction bearing: - 🧠ANSWER ✔✔Has rolling
friction
R4B01-01-03-22 Air compressor oil should: - 🧠ANSWER ✔✔Have low
carbon residue
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
Questions Marking Scheme New Update
| A+ Rated
R4B01-02-01-02 A form of lubrication that requires continual motion of a
shaft or surface is: - 🧠ANSWER ✔✔Fluid film lubrication
R4B01-02-03-11 The lubricant for an anti-friction bearing: - 🧠ANSWER
✔✔Could be a semi-solid lubricant
R4B01-02-02-04 A journal bearing: - 🧠ANSWER ✔✔Supports a shaft
R4B01-02-03-12 A thrust bearing which does not utilize the oil wedge
principle of lubrication is the: - 🧠ANSWER ✔✔Collar type
R4B01-01-03-17If an oil must flow at a very low temperature[comma] it
must have the following additive: - 🧠ANSWER ✔✔Pour point depressant
R4B01-02-02-08 A large journal bearing which is running hotter than
normal can be cooled by: - 🧠ANSWER ✔✔Loosening the bearing caps
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
, R4B01-01-02-04 The kind of grease used for heavily loaded machinery
operating at slow speeds is the: - 🧠ANSWER ✔✔Specialty grease
R4B01-01-03-18 Which type of oil produces higher fluid friction? -
🧠ANSWER ✔✔High viscosity oil
R4B01-02-43-14 When inspecting a dismantled bearing, the first indication
of a failing bearing is: - 🧠ANSWER ✔✔Roughness
R4B01-01-03-20The instrument that measures the viscosity of an oil at a
certain temperature as it flows through a small diameter tube[comma] is
called: - 🧠ANSWER ✔✔A Saybolt viscometer
R4B01-02-03-09 A collar thrust bearing: - 🧠ANSWER ✔✔Has boundary
lubrication
R4B01-01-02-08 A material that is commonly used as a solid lubricant is: -
🧠ANSWER ✔✔Molybdenum disulfide
R4B01-02-03-13 An anti-friction bearing: - 🧠ANSWER ✔✔Has rolling
friction
R4B01-01-03-22 Air compressor oil should: - 🧠ANSWER ✔✔Have low
carbon residue
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
