Chapter 1: Reciprocating Engines Section A
Exam UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS
Radial engines have appeared in two forms - CORRECT ANSWER 1. The rotary-type
radial engine
2. The static-type radial engine
The _______ ________ - type engine has two banks of cylinders directly opposite each other
with a crankshaft in the middle. - CORRECT ANSWER Horizontally opposed
Horizontally opposed engine crankcases are usually cast from _____________________
alloy - CORRECT ANSWER Aluminum
Many crankcase halves are sealed using a thin coat of non-hardening gasket compound and a
_________ ___________. - CORRECT ANSWER Silk thread
The three main parts of a crankshaft are the - CORRECT ANSWER 1. Journal
2. Crank pin
3. Crank cheek
The outer surface of the crankpins and journals are hardened by ___________________. -
CORRECT ANSWER Nitriding
A crankshaft is checked for _________________ balance by placing it on knife edges and
observing any tendency to rotate. - CORRECT ANSWER Static
To reduce vibration to a minimum during engine operation _______________
_____________ are incorporated on the crankshaft - CORRECT ANSWER Dynamic
dampers
, What are the three types of bearings in general use? - CORRECT ANSWER 1. Plain
2. Roller
3. Ball
The crankshaft usually rotates in __________________ bearings - CORRECT
ANSWER Plain
The _____________________ ________________ is the link which transmits forces
between the piston and the crankshaft - CORRECT ANSWER Connecting rod
The connecting rod attaches to the __________ _____________ of the crankshaft. -
CORRECT ANSWER Crank pin
What are the three types of connecting rod assemblies? - CORRECT ANSWER 1.
Plain
2. Fork and blade
3. Master and articulated
The _______________________- type connecting rod is used on horizontally opposed
engines. - CORRECT ANSWER Plain
The _________________ ________ _____________________ rod assembly is used in radial
engines. - CORRECT ANSWER Master and articulated
The _______________ pins connect the articulating rods to the master rod. - CORRECT
ANSWER Knuckle
Most aircraft pistons are machined from ______________ alloy forgings - CORRECT
ANSWER Aluminum
Exam UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS
Radial engines have appeared in two forms - CORRECT ANSWER 1. The rotary-type
radial engine
2. The static-type radial engine
The _______ ________ - type engine has two banks of cylinders directly opposite each other
with a crankshaft in the middle. - CORRECT ANSWER Horizontally opposed
Horizontally opposed engine crankcases are usually cast from _____________________
alloy - CORRECT ANSWER Aluminum
Many crankcase halves are sealed using a thin coat of non-hardening gasket compound and a
_________ ___________. - CORRECT ANSWER Silk thread
The three main parts of a crankshaft are the - CORRECT ANSWER 1. Journal
2. Crank pin
3. Crank cheek
The outer surface of the crankpins and journals are hardened by ___________________. -
CORRECT ANSWER Nitriding
A crankshaft is checked for _________________ balance by placing it on knife edges and
observing any tendency to rotate. - CORRECT ANSWER Static
To reduce vibration to a minimum during engine operation _______________
_____________ are incorporated on the crankshaft - CORRECT ANSWER Dynamic
dampers
, What are the three types of bearings in general use? - CORRECT ANSWER 1. Plain
2. Roller
3. Ball
The crankshaft usually rotates in __________________ bearings - CORRECT
ANSWER Plain
The _____________________ ________________ is the link which transmits forces
between the piston and the crankshaft - CORRECT ANSWER Connecting rod
The connecting rod attaches to the __________ _____________ of the crankshaft. -
CORRECT ANSWER Crank pin
What are the three types of connecting rod assemblies? - CORRECT ANSWER 1.
Plain
2. Fork and blade
3. Master and articulated
The _______________________- type connecting rod is used on horizontally opposed
engines. - CORRECT ANSWER Plain
The _________________ ________ _____________________ rod assembly is used in radial
engines. - CORRECT ANSWER Master and articulated
The _______________ pins connect the articulating rods to the master rod. - CORRECT
ANSWER Knuckle
Most aircraft pistons are machined from ______________ alloy forgings - CORRECT
ANSWER Aluminum
