Free Printable Systems Engineering Exam (2012)

Worksheets

Systems Engineering Exam (2012)

Total questions: 20

Worksheet time: 20mins

Name

Class

Date

When the camshaft shown above is rotated one complete turn, the mechanism

A. lifts and falls once.

B. lifts and falls four times.

C. converts rotary motion into reciprocating motion.

D. works only in an anticlockwise rotation of the cam.

The thread pitch of a bolt is 1 mm. The bolt is tightened 180° after first contact with the parts to be fastened. How much stretch has been applied to the bolt shank?

no stretch

0.25 mm

0.5 mm

1.0 mm

A mains-operated piece of electrical equipment in a school has been tagged as faulty. Who is allowed to remove the tag and return the mains-operated piece of electrical equipment to service?

A. a cleaner

B. a teacher

C. an approved student

D. a licensed electrician

A pedestal drill is being used in a workshop. Sparks and smoke are emitted from the pedestal drill’s switchbox. What immediate action would you take?

A. Isolate the pedestal drill.

B. Use another pedestal drill.

C. Hose the pedestal drill with water.

D. Use personal protection equipment.

The force exerted on the connecting link compared with the force applied to the lever by the rotating cam as it rotates will be

A. less at all times.

B. more at all times.

C. equal at all times.

D. less or more depending on the position of the rotating cam.

Point A on the lever indicates the position of the

A. rotation of the cam.

B. balance.

C. effort.

D. load.

When the rotating cam is actuating the lever, the chamber has

A. low pressure.

B. high pressure.

C. zero pressure.

D. atmospheric pressure.

A bolt is to be tightened with a spanner to a torque of 100 Nm. If the spanner is 40 cm long, then the force applied to the end of the spanner is

A. 2.5 N

B. 40.0 N

C. 250.0 N

D. 400.0 N

The gear ratio of the compound gears shown above is

A. 5:1

B. 6:1

C. 1:6

D. 8:40

10.

If pulley A rotates clockwise, pulley C will rotate

A. clockwise and faster.

B. clockwise and slower.

C. anticlockwise and faster.

D. anticlockwise and slower

11.

When a nut on a bolt is tightened, what type of force is applied to the shank on the bolt?

A. linear

B. torsion

C. tension

D. compression

12.

The voltmeter shown above has a reading of 1 V from the battery to the load. One way of reducing the reading of 1 V when the circuit is operating is to

A. increase the diameter of the wire.

B. decrease the diameter of the wire.

C. put a resistor in parallel to the load.

D. put a capacitor in series in the circuit.

13.

The electric current in a printed circuit board’s copper track is caused by the flow of

A. ions.

B. protons.

C. neutrons.

D. electrons.

14.

A 12 V solar panel is used to charge a 12 V battery. The battery provides power for an electric pump that uses 4 A for 4 hours a day. A solar panel is used to charge the battery and it provides 2 A for 6 hours a day. In the long run

A. the battery will go flat.

B. the battery will stay charged.

C. the electric pump will not work in the dark.

D. the electric pump will work for only 2 hours each day.

15.