AGR 102 CBT PRACTICE

Phil July 7, 2024

0 86 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 primary purpose of gear drives in farm machinery?

A. To provide lubrication

B. To store energy

C. To create hydraulic power

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

2 / 39

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

A. Multiple linear regression

B. Correlation analysis

C. Descriptive statistics

D. Binary regression

3 / 39

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

A. Mass flow

B. Soil interception

C. Soil compaction

D. Soil diffusion

4 / 39

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

A. 6.0-8.0

B. 4.0-6.0

C. 3.5-5.0

D. 5.5-7.0

5 / 39

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

A. Solid

B. Liquid

C. Organic

D. Gas

6 / 39

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

A. Timing belt

B. Flat belt

C. Round belt

D. Vee-shaped belt

7 / 39

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

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

B. To increase the speed of the tractor

C. To transport the tractor to different locations

D. To attach the implement to the tractor

8 / 39

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

A. To perform a frequency distribution

B. To generate descriptive statistics

C. To analyze a single variable

D. To analyze the correlation between two variables

9 / 39

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

A. Subangular Blocky

B. Angular Blocky

C. Columnar

D. Platy

10 / 39

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

A. Actuator

B. Pump

C. Motor

D. Valve

11 / 39

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

A. Mineral soil

B. Organic Matter

C. Water

D. Air

12 / 39

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

A. Sand, gravel, rock

B. Clay, sand, silt

C. Clay, silt, gravel

D. Silt, gravel, sand

13 / 39

13. 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. There is no significant difference

D. Reject the null hypothesis

14 / 39

14. What is the logit in logistic regression?

A. The natural logarithm of the dependent variable

B. The logarithm of the odds ratio

C. The sum of the independent variables

D. The inverse of the dependent variable

15 / 39

15. 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

16 / 39

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

A. Soil solution

B. Soil texture

C. Cation exchange capacity (CEC)

D. Soil fertility

17 / 39

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

A. Unexplained variability

B. Mean difference

C. Explained variability

D. Standard deviation

18 / 39

18. 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

19 / 39

19. What does the correlation coefficient measure?

A. Variance

B. Proportional covariance

C. Mean

D. Covariance

20 / 39

20. What is the typical range of soil pH?

A. 2.0 to 6.0

B. 1.5 to 12.0

C. 4.0 to 9.5

D. 5.0 to 10.0

21 / 39

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

A. As one variable increases, the other decreases

B. There is no relationship between the variables

C. Both variables move independently

D. As one variable increases, the other also increases

22 / 39

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

A. A chemical analysis of soil.

B. A vertical section of soil through multiple horizons.

C. A soil sample taken from the surface.

D. A horizontal section of soil.

23 / 39

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

A. The standard error

B. The mean difference

C. The correlation between variables

D. The proportion of variance explained by the model

24 / 39

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

A. Gear drive

B. Belt and pulley drive

C. Shaft and universal joint drive

D. Hydraulic system

25 / 39

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

A. Spool valve

B. Pressure control valve

C. Check valve

D. Volume control valve

26 / 39

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

A. To serve as a decorative element on farms

B. To directly perform the tasks

C. To provide pull or force required to operate implements

D. To replace human labor entirely

27 / 39

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

A. Regression test

B. Correlation test

C. One-sample t-test

D. Independent samples t-test

28 / 39

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

A. Eolian

B. Colluvium

C. Lacustrine

D. Marine

29 / 39

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

A. To store hydraulic fluid

B. To create the flow of the fluid medium

C. To filter the fluid

D. To control the direction of fluid flow

30 / 39

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

A. A horizon

B. E horizon

C. B horizon

D. O horizon

31 / 39

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

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

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

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

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

32 / 39

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

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

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

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

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

33 / 39

33. Which term refers to soil deposited by rivers?

A. Residium

B. Alluvium

C. Lacustrine

D. Marine

34 / 39

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

A. 0 to 1

B. -1 to 0

C. 0 to 2

D. -1 to 1

35 / 39

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

A. Semi-mounted

B. Mounted

C. Pulled

D. Self-propelled

36 / 39

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

A. Platy

B. Prismatic

C. Granular

D. Columnar

37 / 39

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

A. Soil structure

B. Soil drainage and organic material content

C. Soil texture

D. Soil acidity and alkalinity

38 / 39

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

A. To generate joint frequency distribution of two categorical variables

B. To calculate means and standard deviations

C. To perform linear regression

D. To display frequency distribution of continuous variables

39 / 39

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

A. To determine standard deviations

B. To analyze continuous variables

C. To compute means

D. To explain the adoption of a new technology

Your score is

The average score is 27%

Phil July 7, 2024

0 86 1 minute read

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Thank you so much for this....

AGR 102 CBT PRACTICE

Phil

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