Bearings
Pistons
Cylinders
Types of Engines
Design & Construction
100

A master rod bearing (radial engine) is least likely to be which two types of bearings?

Roller and ball bearings. 

100

This type of piston provides a better fit at operating temperatures. (18).

Cam-ground piston

100

The cylinder walls of a normally operating engine will experience the greatest amount of wear near the (27).

Top of the cylinder

100

All piston engines are cooled by transferring excess heat to the (pg. 1-3).

Surrounding air.

100

Crankshafts are balanced for _____ balance and ________ balance.

Static and dynamic (pg. 1-8).

200

Which type of bearing is used in high-powered reciprocating engines for its minimal rolling friction feature?

Ball bearing 

200

Cast iron piston rings may be used in these types of cylinders (44).

Chrome-plated cylinder.

200

This provides a straight cylinder bore at operating temperatures (20).

Choke or taper-ground cylinder

200

The main problem with liquid cooling is the added

Weight of coolant, heat exchanger (radiator), and tubing to connect the components (pg. 1-3).

200

The difference in the diameter between the pins and the holes provides this effect.

Pendulum (pg. 1-9).

300

Deep-groove ball bearings are used as the thrust bearing in which aircraft engine?

Radial engines. 

300

Ignition occurs in a reciprocating engine somewhere around 30 degrees of crankshaft rotation before the piston reaches...(29)

Top center on the compression stroke.

300

Cylinder barrels are hardened using this process (25).

Nitriding

300

The pistons of both cylinder banks are connected to the single crankshaft

Opposed or O-type engines (pg. 1-4).

300

The articulated rods are constructed of this forged metal.

Steel alloy (pg. 1-9).

400

This type of bearing is generally used for connecting rods and cam shafts.

Plain bearing(s).

400

Chrome-plated rings may be used in these types of cylinders (44).

Plain steel cylinders.

400
Nitriding is a process in which the surface of the steel cylinder wall is changed into a hard nitride by an infusion of nitrogen from the this gas that is used in the nitriding heat treatment process (25).

Ammonia

400
Radial engines that have two rows of seven or nine cylinders arranged radially about the crankshaft, one in front of the other are called

Double-row radials (pg. 1-4).

400
The purpose of the cooling fins provided on the inside of the piston is for

Greater heat transfer to the engine oil (pg. 1-12).

500

During overhaul of an engine, a first step of inspection on a crankshaft should be to

Inspect the bearing surfaces for pitting 

500

Full-floating piston pins are usually a push fit in the piston. They are kept from damaging the cylinder walls as they move up and down by which of these two types of plugs (36).

Soft aluminum or brass plugs in the ends of the pin.

500

Aircraft cylinders are oversized considerably less than automobile engine cylinders because they have (76).

Relatively thin walls and may be nitrided.

500

This type of engine was used mostly during the Second World War and its use is mostly limited to older aircraft.

V-type engines (pg. 1-4).

500

The purpose of the compression rings is to prevent this

Escape of combustion gases past the piston during engine operation (pg. 1-13).

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