AGR 102 CBT PRACTICE

Phil July 7, 2024Last Updated: July 7, 2024

0 164 1 minute read

Take your time to read instructions before taking this test.

There are 40 questions which you are to answer in 15 minutes that gives you roughly 30 seconds per question.

If you can get at least 60%, you can be rest assured that you’ll ace AGR 102 exam

In a normal exam you will be asked between 40 – 60 questions but I only arranged 40 questions

Note

Do not be in a hurry to answer the questions

Do not waste time on a question you don’t know

Move as fast as possible and starting with questions that don’t have calculation first to save time

Always crosscheck

Don’t be in a hurry to submit, you are not in a competition

Don’t be scared. Getting an A is easy

Don’t be over confident, you can end up a D, E or F. Calm your blood, no be only you sabi book

Please do well to use our comment box incase there’s a message you want to pass to us

70 – 100 A

60 – 69 B

50 – 59 C

45 – 49 D

40 – 44 E

0 – 39 F

I wish you success

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AGR 102

1 / 39

1. What is the term for the sum of exchangeable cations in soil?

A. Soil texture

B. Soil fertility

C. Cation exchange capacity (CEC)

D. Soil solution

2 / 39

2. What type of soil structure is commonly found in arid or semi-arid regions and has rounded tops?

A. Platy

B. Columnar

C. Prismatic

D. Granular

3 / 39

3. What is the function of cross-tabulation in statistical analysis?

A. To perform linear regression

B. To generate joint frequency distribution of two categorical variables

C. To display frequency distribution of continuous variables

D. To calculate means and standard deviations

4 / 39

4. Which element of the hydraulic system converts fluid power into rotary motion?

A. Valve

B. Actuator

C. Pump

D. Motor

5 / 39

5. What is the function of the PTO (Power Take Off) drive system on a tractor?

A. To transport the tractor to different locations

B. To attach the implement to the tractor

C. To increase the speed of the tractor

D. To provide auxiliary rotary power to implements requiring rotary movement

6 / 39

6. What type of valve in a hydraulic system controls the direction of fluid flow?

A. Volume control valve

B. Check valve

C. Pressure control valve

D. Spool valve

7 / 39

7. What type of belt is designed to mesh into splines and provide a positive drive?

A. Round belt

B. Flat belt

C. Timing belt

D. Vee-shaped belt

8 / 39

8. What does the null hypothesis state in the context of the mean bean yield example?

A. The mean bean yield is equal to 10 quintales per manzana

B. The mean bean yield is less than 10 quintales per manzana

C. The mean bean yield is different from 10 quintales per manzana

D. The mean bean yield is greater than 10 quintales per manzana

9 / 39

9. What does a significant positive correlation between two variables indicate?

A. Both variables move independently

B. As one variable increases, the other decreases

C. As one variable increases, the other also increases

D. There is no relationship between the variables

10 / 39

10. What is the primary function of farm power in agricultural operations?

A. To replace human labor entirely

B. To provide pull or force required to operate implements

C. To serve as a decorative element on farms

D. To directly perform the tasks

11 / 39

11. What is the definition of soil according to Brady?

A. The organic material found in the top layer of the earth.

B. The solid material on the earth's surface.

C. The unconsolidated material at or near the earth's surface with properties due to its proximity to the surface.

D. The mineral particles found in the earth's crust.

12 / 39

12. What does the term "soil profile" refer to?

A. A soil sample taken from the surface.

B. A vertical section of soil through multiple horizons.

C. A horizontal section of soil.

D. A chemical analysis of soil.

13 / 39

13. What is the term for wind-deposited soil?

A. Colluvium

B. Marine

C. Lacustrine

D. Eolian

14 / 39

14. What phase of soil is dominant in a typical soil profile?

A. Gas

B. Organic

C. Solid

D. Liquid

15 / 39

15. What is the logit in logistic regression?

A. The natural logarithm of the dependent variable

B. The inverse of the dependent variable

C. The logarithm of the odds ratio

D. The sum of the independent variables

16 / 39

16. In regression analysis, what does the term 'error' represent?

A. Standard deviation

B. Explained variability

C. Unexplained variability

D. Mean difference

17 / 39

17. Which term refers to soil deposited by rivers?

A. Alluvium

B. Lacustrine

C. Residium

D. Marine

18 / 39

18. What is the primary purpose of gear drives in farm machinery?

A. To store energy

B. To provide lubrication

C. To engage each other for motion transmission without shock, minimum wear, and noise

D. To create hydraulic power

19 / 39

19. In correlation analysis, what is the purpose of using the 'Bivariate' option in SPSS?

A. To analyze a single variable

B. To perform a frequency distribution

C. To generate descriptive statistics

D. To analyze the correlation between two variables

20 / 39

20. What is the main function of a hydraulic pump in a hydraulic system?

A. To store hydraulic fluid

B. To filter the fluid

C. To control the direction of fluid flow

D. To create the flow of the fluid medium

21 / 39

21. What is the typical range of soil pH?

A. 1.5 to 12.0

B. 2.0 to 6.0

C. 4.0 to 9.5

D. 5.0 to 10.0

22 / 39

22. Which type of farm implement is directly connected to and powered by the tractor?

A. Mounted

B. Pulled

C. Self-propelled

D. Semi-mounted

23 / 39

23. What are the three main size categories of soil particles?

A. Sand, gravel, rock

B. Clay, sand, silt

C. Silt, gravel, sand

D. Clay, silt, gravel

24 / 39

24. What soil horizon is typically darker in color and can be mechanically disturbed?

A. E horizon

B. O horizon

C. B horizon

D. A horizon

25 / 39

25. What does the correlation coefficient measure?

A. Mean

B. Proportional covariance

C. Variance

D. Covariance

26 / 39

26. What pH range is generally considered optimal for the availability of both macronutrients and micronutrients?

A. 4.0-6.0

B. 6.0-8.0

C. 3.5-5.0

D. 5.5-7.0

27 / 39

27. In tractor implement control systems, what is the purpose of the auto-draft control?

A. To lift and keep the implement in a neutral position

B. To manually adjust the implement's position

C. To store implements when not in use

D. To maintain a pre-determined draft or force required by an implement

28 / 39

28. What statistical method is used to explain the behavior of one variable through other variables?

A. Multiple linear regression

B. Descriptive statistics

C. Correlation analysis

D. Binary regression

29 / 39

29. Which process involves the movement of water and nutrients from soil to plant roots?

A. Soil interception

B. Soil diffusion

C. Mass flow

D. Soil compaction

30 / 39

30. What does the solid phase of soil mainly consist of?

A. Mineral soil

B. Air

C. Organic Matter

D. Water

31 / 39

31. What is the primary use of binary regression models?

A. To analyze continuous variables

B. To compute means

C. To determine standard deviations

D. To explain the adoption of a new technology

32 / 39

32. Which statistical test is used to evaluate the difference between two means?

A. Independent samples t-test

B. Regression test

C. Correlation test

D. One-sample t-test

33 / 39

33. Which soil structure type consists of small, plate-like aggregates and is typically found in A or E horizons?

A. Angular Blocky

B. Platy

C. Columnar

D. Subangular Blocky

34 / 39

34. What is the simplest form of power transmission in farm machinery?

A. Belt and pulley drive

B. Hydraulic system

C. Shaft and universal joint drive

D. Gear drive

35 / 39

35. What does R-squared (R²) indicate in a regression model?

A. The standard error

B. The proportion of variance explained by the model

C. The correlation between variables

D. The mean difference

36 / 39

36. In a t-test, if the p-value is less than 0.05, what does it indicate?

A. The result is not statistically significant

B. Accept the null hypothesis

C. Reject the null hypothesis

D. There is no significant difference

37 / 39

37. What is the range of values that a correlation coefficient can take?

A. -1 to 1

B. -1 to 0

C. 0 to 2

D. 0 to 1

38 / 39

38. What is a key assumption of the Ordinary Least Squares (OLS) regression?

A. The variance of errors is not constant

B. The mean of errors is zero

C. The dependent variable is categorical

D. All errors are correlated

39 / 39

39. What is indicated by a soil's Munsell color notation?

A. Soil drainage and organic material content

B. Soil acidity and alkalinity

C. Soil structure

D. Soil texture

Your score is

The average score is 25%

Phil July 7, 2024Last Updated: July 7, 2024

0 164 1 minute read

AGR 102 CBT PRACTICE

Phil

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