FENZ General Ability Screen flashcards

31 cards. Read the term and the definition here. The deck at the top of this page is optional.

Cannot say

Verdict used when a statement is neither confirmed nor contradicted by the passage. Real-world truth is irrelevant; if the passage is silent on the specific claim, the answer is Cannot say.

Quantifier shift

Changing words like all, most, some or none between passage and statement. A statement using a stronger quantifier than the passage supports is not True, even if it feels plausible.

Cause versus correlation

A passage reporting that two events occurred together supports only that link. A statement claiming one event caused the other adds information and is therefore unsupported.

Main idea test

The correct main-idea option must be supported by the whole passage. An option that is accurate but covers only one sentence is a detail and is not the main idea.

Vocabulary in context

Meaning of a word is fixed by its surrounding sentence, not by its most common dictionary sense. Substitute each option into the sentence and keep the one preserving meaning and tone.

Percentage change formula

Change divided by original value, times 100. A rise from 80 to 100 is plus 25 percent; a fall from 100 to 80 is minus 20 percent, because the base differs.

Successive percentage changes

Multiply the multipliers rather than adding percentages. A 10 percent rise then a 10 percent fall is 1.10 times 0.90 equals 0.99, a net fall of 1 percent.

Reverse percentage

To recover an original amount before a percentage change, divide by the multiplier. A price of 96 after a 20 percent rise means the original was 96 divided by 1.20, which is 80.

Ratio sharing

Divide the total by the sum of the ratio parts to find one part, then multiply by each ratio number. A 2:3:5 split of 200 gives 40, 60 and 100.

Weighted combined average

The mean of two groups is the sum of each group mean multiplied by its count, divided by total count. Simple averaging of the two means is correct only when counts are equal.

Combined work rate

Add individual rates, then invert. If one worker takes a hours and another b hours, together they take 1 divided by (1/a plus 1/b) hours to finish the same job.

Percentage points versus percent

A rate moving from 20 percent to 25 percent rises 5 percentage points but 25 percent in relative terms. The question wording determines which measure is required.

Interleaved number sequences

When first differences look irregular, split the sequence into odd and even positions. Each subsequence often follows its own simple rule, such as adding 3 or doubling.

Letter position arithmetic

Convert letters to numbers with A as 1 and Z as 26. A constant gap between letters means adding or subtracting a fixed number per step; a reversal means the alphabet runs backwards.

Valid syllogism test

A conclusion is valid only if it holds in every arrangement satisfying the premises. All A are B plus all B are C yields all A are C.

Some is not reversible

From 'some A are B' you cannot infer 'some B are A' unless the statement is read as asserting existence in both directions. Treat symmetry of 'some' with caution.

Constrained item first

In ordering or seating puzzles, place the item with the most restrictions before the flexible ones. Fixed positions and adjacency rules eliminate options fastest.

Odd-one-out single rule

Test options against one feature at a time: number of sides, symmetry, closed regions, or rotation. The correct answer breaks exactly one otherwise consistent rule.

Safety before efficiency

In ranking responses, protecting people from harm outranks speed, cost and convenience. An option that saves time but adds risk is never the most effective.

When to escalate

Refer upward when the matter exceeds your authority, involves a safety hazard or illegality, or remains unresolved after direct discussion. Otherwise handle it within your own role.

Direct and private first

Raise a concern with the person involved privately before involving a manager. Exceptions are unsafe, unlawful or already-reported conduct that remains unresolved.

Behaviour not character

Feedback should name the specific action and its impact, then offer a corrective step. Attacking the person's character or motives makes the conflict worse and is rarely the best option.

Own the mistake early

Reporting your own error promptly with a proposed fix outranks concealment or blame-shifting. Delay compounds the original problem and damages trust more than the error itself.

Lever balance rule

Effort multiplied by effort arm equals load multiplied by load arm. Lengthening the effort arm reduces the effort required to move a given load about the fulcrum.

Pulley mechanical advantage

Mechanical advantage equals the number of rope sections supporting the movable load. A single fixed pulley only changes the direction of pull and gives advantage of one.

Gear direction and ratio

Meshed gears rotate in opposite directions. Speed ratio is the inverse of the tooth ratio, so a small gear driving a large one slows output and increases torque.

Pascal's principle

Pressure applied to an enclosed fluid is transmitted equally throughout. Force divided by piston area is constant, so a larger piston produces greater force over a shorter stroke.

Work and power

Work equals force multiplied by distance moved along the force. Power equals work divided by time. Holding a load stationary does no work because no distance is moved.

Series versus parallel

In series, current is the same throughout and resistances add. In parallel, voltage is equal across branches and total resistance is less than the smallest branch resistance.

Flotation by density

An object floats when its density is less than the fluid's and sinks when greater. Shape changes displacement and stability, but not the density comparison that decides flotation.

Rotation versus reflection

A rotation changes orientation but preserves shape, size and handedness. A reflection reverses handedness, so a mirrored shape can never be produced by rotation alone.