Psychometric Test A

A bucket of water has a leak on its lower side. As the water goes down, what happens to the speed of the water coming out of the hole?

• It increases

• It stays the same

• It decreases

• It reverses

• Impossible to tell

If the end of the hose was pulled in the direction of the arrow, the hose reel disc also rotates. Which point of the hose reel would move the fastest?

• A

• B

• C

• They will all move equally fast

• Impossible to tell

A cylindrical metal tank filled with air is submerged underwater. As the air escapes, the tank gradually moves deeper underwater. Which statement provides the best reason for this motion?

• The bubbles provide a downward thrust on the tank

• The metal increases in density so it gets heavier

• The bubbles lower the density of the water which lowers its buoyancy

• Water replaces the air in the tank which makes it heavier

• Impossible to tell

It is a cold winter and a well-insulated house has its heater turned on. The front door is opened and cold air rushes in. If the wind speed outside is very low, how would the cold air enter the house?

• Scenario A, the cold air will flow towards the floor

• Scenario B, the cold air will flow towards the ceiling

• A combination of A and B

• The cold air will not enter the house

• Impossible to tell

Bolt croppers have long handles with grips that are located as far away as possible from the neck. Which statement provides the best reason for this design?

• Long handles make the cutting edges move faster

• It provides mechanical advantage which allows cutting through thick bolts

• The appearance of the tool is significantly more aesthetic with longer hadles

• It makes the bolt croppers more durable if dropped accidently

• Longer handles are more ergonomic and allows easier storage

Convex mirrors are used for rear-view mirrors of vehicles. What is the advantage of using a convex mirror instead of a flat mirror?

• It provides a clearer reflection

• It has a more accurate reflection

• The wider angle of view reduces blind spots

• It is easier to clean a convex mirror

• A convex mirror provides no advantage

Three identical candles were lit and covered by individual jars at the same time. Which candle would have its flame extinguish first?

• A

• B

• C

• They will all extinguish at the same time

• Impossible to tell

Firefighters use a Halligan tool to force entry to a fire compartment during rescue operations. Which tool would require the least effort to forcibly open the door?

• A

• B

• C

• D

• All would require the same effort

A car is behind a fire appliance on a motorway. The appliance is travelling at a speed of 60 mph. If the distance between the two moving vehicles is not changing, what is the cars speed?

• 80 mph

• 65 mph

• 60 mph

• 50 mph

• 55 mph