Quiz 13 - Engine Sealing And Reassembly
Payment's review questions on engine sealing
- 1.Which of the following perform the vital task of sealing the engine?
- A.
Gaskets
- B.
Seals
- C.
O-rings
- D.
All of the above
- 2.Which of the following statements is not correct?
- A.
All metals are elastic
- B.
Cut bolt threads are 30 percent stronger than rolled threads
- C.
Torque is a function of friction
- D.
Proper use of torque will avoid a yield condition
- 3.Which one of the following gaskets is not used on certain engines?
- A.
Valve cover gasket
- B.
Cylinder head gasket
- C.
Exhaust manifold gasket
- D.
Oil pan gasket
- 4.The proper engine break-in procedure is:
- A.
A test run at 30 mph
- B.
A test run at 10 mph and acceleration to 30 mph
- C.
A test run at highway speed
- D.
Best determined by the new car manufacturer
- 5.A silicone RTV gasket can be used to replace conventional_____gaskets
- A.
Paper
- B.
Cork
- C.
Cork with rubber
- D.
All of the above
- 6.Bolt torque is a function of:
- A.
Tension
- B.
Torsion
- C.
Friction
- D.
All of the above
- 7.A damaged bolt should be:
- A.
Repaired with a tap
- B.
Repaired with a die
- C.
Discarded
- D.
Both B and C
- 8.Graphite is a:
- A.
Natural lubricant
- B.
Synthetic lubricant
- C.
Natural sealant
- D.
Synthetic sealant
- 9.Technician A says some seals are designed to keep oil from escaping around a rotating shaft. Technician B says some seals are used to prevent fluid leaks between two fairly rigid flanges. Who is correct?
- A.
A only
- B.
B only
- C.
Both A and B
- D.
Neither A nor B
- 10.Technician A uses adhesives to hold gaskets in place while installing them. Technician B use RTV when an anaerobic sealant is required. Who is correct?
- A.
A only
- B.
B only
- C.
Both A and B
- D.
Neither A nor B
- 11.Technician A uses soft gaskets on valve covers. Technician uses soft gaskets on water pumps. Who is correct?
- A.
A only
- B.
B only
- C.
Both A and B
- D.
Neither A nor B
- 12.Technician A spray paints the engine assembly after it is completely assembled. Technician B puts grease on the exhaust and intake ports before painting the engine. Who is correct?
- A.
A only
- B.
B only
- C.
Both A and B
- D.
Neither A nor B
- 13.Technician A says two extremely smooth surfaces do not require gaskets or sealants when they are fastened together. Technician B always uses new gaskets and never reuses old ones. Who is correct?
- A.
A only
- B.
B only
- C.
Both A and B
- D.
Neither A nor B
- 14.Technician A uses chemical thread retainers on critical bolts and nuts. Technician B says chemical thread retainers cannot be used as a substitute for lock washers. Who is correct?
- A.
A only
- B.
B only
- C.
Both A and B
- D.
Neither A nor B
- 15.Technician A says damaged threads in a cylinder head can be repaired with a helically coiled insert. Technician B says stripped threads are commonly caused by over-torquing. Who is correct?
- A.
A only
- B.
B only
- C.
Both A and B
- D.
Neither A nor B
- 16.Techniocian A says aluminum expands at a different rate than cast iron. Technician B says cast iron has a coefficient of thermal expansion two or three times greater than aluminum. Who is correct?
- A.
A only
- B.
B only
- C.
Both A and B
- D.
Neither A nor B
- 17.Proper engine break-in procedure is being discussed. Technician A says the engine should be run at idle speed for at least two hours. Technician B says the engine should be accelerated at full throttle to 50 mph. Who is correct?
- A.
A only
- B.
B only
- C.
Both A and B
- D.
Neither A nor B
- 18.Torque-to-yield bolts are being discussed. Technician A says compared to conventional bolts, toque-to-yield bolts offer more uniform clamping force. Technician B says torque-to-yield bolts are tightened to a specific torque, and then rotated a certain number of degrees. Who is correct?
- A.
A only
- B.
B only
- C.
Both A and B
- D.
Neither A nor B
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