Navy Sailor Test Intelligence Test Syllabus

Define these relations: brother-in-law and sister-in-law.

Brother-in-law = your spouse's brother, or your sister's husband. Sister-in-law = your spouse's sister, or your brother's wife.

What is the relationship of your father's father and your son's son to you?

Your father's father is your grandfather (paternal). Your son's son is your grandson. These are two generations above and below you respectively.

In Blood Relations, what does 'nephew' and 'niece' mean?

A nephew is the son of your brother or sister. A niece is the daughter of your brother or sister.

In Direction Sense, what are the four cardinal and four ordinal directions?

Cardinal: North, East, South, West. Ordinal (intermediate): North-East, South-East, South-West, North-West. North is opposite South; East is opposite West.

In Direction Sense, if you face North and turn right, then right again, which direction do you face?

Facing North and turning right gives East; turning right again gives South. (Right turns rotate clockwise: N→E→S→W.)

How is straight-line distance found in a direction-sense problem with right-angle turns?

Use the Pythagorean theorem on the net horizontal and net vertical displacements: distance = √(horizontal² + vertical²).

In Direction Sense, during sunrise (morning), if your shadow falls to your right, which direction are you facing?

At sunrise the sun is in the East, so shadows fall toward the West. If your shadow is to your right, you are facing North.

What is the basic principle of Age Problems involving present and future/past ages?

Represent the present age with a variable; for 'years ago' subtract that number, for 'years hence' add it. Form an equation from the given ratio or difference and solve.

In Age Problems, why does the difference between two people's ages remain constant?

Because both people age by the same amount each year, the numerical difference between their ages never changes, even though the ratio of their ages changes over time.

In Age Problems, if a father is 3 times his son's age now and the son is 10, how old is the father, and what was the ratio 5 years ago?

Father = 3 × 10 = 30 now. Five years ago: son was 5, father was 25, so the ratio was 25:5 = 5:1.

How many days are in each month, and which has 28 or 29 days?

30 days: April, June, September, November. 31 days: January, March, May, July, August, October, December. February has 28 days, or 29 in a leap year.

What is the rule for identifying a leap year?

A year is a leap year if divisible by 4; but century years (ending in 00) must be divisible by 400. So 2000 and 2400 are leap years, but 1900 and 2100 are not.

In calendar problems, how many odd days does an ordinary year and a leap year have?

An ordinary year (365 days) has 1 odd day. A leap year (366 days) has 2 odd days. Odd days are the leftover days after counting complete weeks.

In calendar reasoning, what is an 'odd day' and why does it matter?

An odd day is the remainder when total days are divided by 7. Odd days determine how many weekdays the day of the week shifts; they are key to finding the day for any given date.

How many odd days are in 100 years, and what does that imply?

100 years contain 24 leap years and 76 ordinary years, giving (24×2 + 76×1) = 124 days = 17 weeks + 5 days, so 5 odd days. This means the day of week shifts by 5 over a century.

In Pattern Completion, what is the task with a figure or matrix?

You must find the missing piece that completes a visual pattern or grid so the design remains continuous and consistent. Choose the option that matches the design's lines, shading, and orientation at the gap.

What features should you compare when solving Pattern Completion problems?

Compare the direction of lines, curves, shading, symmetry, and the way the broken edges of the pattern connect, so the chosen piece continues the design seamlessly.

What is a Mirror Image and where does the reversal occur?

A mirror image is the reflection of an object as seen in a vertical mirror; left and right are interchanged (laterally inverted) while top and bottom stay the same.

What is a Water Image and how does it differ from a mirror image?

A water image is the reflection seen in water below the object; top and bottom are interchanged (vertically inverted) while left and right stay the same — opposite axis to a mirror image.

Which letters look the same in their mirror image?

Symmetric capital letters whose mirror image is unchanged include A, H, I, M, O, T, U, V, W, X, Y because they are symmetric about a vertical axis.

Which capital letters remain unchanged in their water (vertical) image?

Letters symmetric about a horizontal axis stay the same in water image: B, C, D, E, H, I, K, O, X (they look identical when flipped top-to-bottom).

In a mirror image of a clock, how do you find the mirror time?

Subtract the actual time from 12:00 (or 11:60). Example: actual time 4:30 → mirror time = 11:60 − 4:30 = 7:30.

What is a Figure Series problem?

A sequence of figures changes by a consistent rule (rotation, addition/removal of elements, shading, or movement). You must select the figure that continues the sequence by applying the same transformation.

What transformations should you check for in a Figure Series?

Check for rotation (clockwise/anticlockwise by a fixed angle), increase or decrease in number of elements, change in shading, movement of an element step by step, and reflection.

In Figure Series, what does a 'rotation rule' mean?

An element turns by a fixed angle each step (e.g., 45° or 90° clockwise). To find the next figure, rotate the last figure by that same angle in the same direction.

What is an Embedded (Hidden) Figure problem?

You are given a simple figure and a complex figure; you must find the complex figure (or part) that contains the simple figure hidden within it, in the same shape, size, and orientation.

What is the key rule when finding an embedded figure?

The hidden figure must appear in the same proportions and orientation (not rotated or resized) inside the larger figure; only its visibility is obscured by extra lines.

How do you efficiently search for a hidden figure in a complex design?

Trace the outline of the given simple figure and look for those exact lines and angles within the complex figure, ignoring the additional intersecting lines around them.

Compare Mirror Image and Water Image in one sentence each.

Mirror image: left-right reversed, top-bottom same (vertical axis flip). Water image: top-bottom reversed, left-right same (horizontal axis flip).

In a number series, how do you detect a 'difference of differences' (second-level) pattern?

When first differences are not constant, compute the differences of those differences. If that second-level series is constant or simple, use it to extend the pattern. Example: 2, 4, 8, 14, 22 has differences 2,4,6,8 (each rising by 2), so next difference is 10 and next term is 32.