Praxis Review

Front

A vehicle uses a chain-and-sprocket drive system. If the engine speed does not change, which of the following will result in a higher speed for the rear wheel? Options: Installing a longer chain, Removing some of the links in the chain, Decreasing the number of teeth on the rear sprocket, Installing a torque converter between the two sprockets

Back

Decreasing the number of teeth on the rear sprocket

Front

Which of the following must occur during the intake cycle of a small four-stroke gasoline engine in order for it to run at maximum efficiency? The crankshaft must make one full revolution. The magneto must produce a spark at the spark plug. The intake and exhaust valves must both be open. The carburetor must mix the correct ratio of oxygen and fuel.

Back

The carburetor must mix the correct ratio of oxygen and fuel.

Front

Which of the following is a benefit of crop rotation? Lower soil quality, Lower crop yield, Higher soil moisture, Higher soil pH

Back

Higher soil moisture

Front

Which of the following food crops can best provide the most calories to the greatest number of people globally?
Vegetables,
Cereals,
Legumes,
Fruits

Back

Cereals

Front

Which of the following is the maximum limit of the working line pressure of fuel gas for an oxyacetylene torch? 5 PSI, 12 PSI, 15 PSI, 25 PSI

Back

15 PSI

Front

What are the three divisions of quality standards that make up the FFA Program of Activities?

Back

Student Development, Chapter Development, Community Development

Front

Which of the following is a type of payment for a relatively short-term loan in which the unpaid balance is due at the end of the term? Fixed principal payment, Balloon payment, Graduated payment, Fixed payment

Back

Balloon payment

Front

Which of the following tools is used to clean and polish the surface of an exhaust valve in a small four-stroke gasoline engine? Valve polishing file, Valve refinishing drill bit, Valve lapping tool, Valve sanding pad

Back

Valve lapping tool

Front

Which division has a dominant gametophyte life stage?

Back

Bryophyta

Front

Which of the following types of fencing is commonly used to fence sheep into a large pasture? Woven wire, Barbed wire, Rail, Electric

Back

Woven wire