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m4tty

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Hi this may help people doing 2330 level 3 who havent got access to smartscreen.

#2330 Level 3 Certificate in Electrotechnical Technology

Unit 1 Sample questions: answers

#Unit 1: Application of health and safety and electrical principles (Stage 3)

Sample questions

Answers

1. 01 01 1

The Health and Safety at Work Act sets out a framework stating how:

(a) employers must safeguard the health and safety of their employees *

(b) employees can claim compensation for accidents at work

©to work in dangerous situations without using personal protective equipment

(d) employers can reduce their responsibilities for health and safety

2. 01 01 3

When personal protective equipment (P.P.E.) is provided by an employer it is the responsibility of the employee to:

(a) report damaged P.P.E. to the Health and Safety Executive

(b) inspect P.P.E. before and after use *

©wear damaged P.P.E. if replacements are not available

(d) pay for repairs to damaged P.P.E.

3. 01 02 5

A sign displaying a white pictogram on a circular blue background is a:

(a) safety sign

(b) mandatory sign *

© warning sign

(d) prohibition sign

4. 01 03 6

A person who represents other workers on safety matters in an organisation is called a:

(a) safety officer

(b) safety representative *

© health care representative

(d) health and safety officer

5. 01 04 8

Accidents in the workplace can be reduced by providing:

(a) more first aid centres

(b) clearly marked exit signs

© safety education and publicity *

(d) more fire extinguishers

6. 01 04 10

Carrying out a survey of the workplace and preparing a report on potential health hazards is called a:

(a) risk survey procedure

(b) risk assessment procedure *

© health procedure assessment

(d) health survey procedure

7. 01 05 14

Development of new technology in the electro technical industry will require:

(a) a need for continual retraining *

(b) a need to employ younger staff

© employees to move into less skilled jobs

(d) employees to prepare for redundancy

8. 01 06 15

The term that is used to describe the satisfactory performance of equipment is:

(a) performs well at all times

(b) fit and performs for the guarantee period

© fit for the purpose intended *

(d) performs without maintenance

9. 02 01 1

A permit to work procedure must be issued by:

(a) a qualified first aider

(B0 the Health and Safety Executive

© a suitable responsible person *

(d) the safety committee

10. 02 02 5

Employees should not wear ties or loose clothing when working:

(a) in any part of a factory

(b) in confined spaces

© with toxic materials

(d) with rotating machinery *

11. 02 03 6

To prevent the risk of electric shock when working on an electric motor, the motor should be isolated from the supply by:

(a) opening and locking off the isolator *

(b) pressing the emergency stop button

© pressing the stop button on the starter

(d) disconnecting the whole installation from the supply

12.

A colleague receives an electric shock which results in unconsciousness. The first action to be taken is to

(a) shake the person by the arm

(b) walk and find the first aid officer

© dial 999 for an ambulance

(d) apply resuscitation techniques.

13. 02 04 8

A gas which is heavier than air and can cause an oxygen deficiency in confined spaces leading to asphyxiation is:

(a) nitrogen

(b) methane *

© hydrogen

(d) helium

14. 02 05 9

A fault occurring on equipment in the work place with the potential of causing harm to employees is termed:

(a) a hazardous malfunction *

(b) an industrial malfunction

© a maintenance fault

(d) a workplace danger

15. 02 06 11

Fire legislation requires public buildings, factories and hospitals to provide:

(a) fire proof clothing and means of eye protection

(b) fire proof lifts as an escape route

© first aid posts on all escape routes

(d) a fire warning system and fire fighting equipment *

16. 03 01 2

Storming, forming, norming and performing are stages in the process of:

(a) a training programme

(b) re-organising a company

© group problem solving *

(d) a manufacturing process

17. 03 02 3

The right to a minimum wage and claims for unfair dismissal are covered in the:

(a) Employment Rights Act *

(b) Data Protection Act

© Human Rights Act

(d) Race Relations Act

18. 03 03 6

Increased profitability is most likely to occur if:

(a) higher prices are charged

(b) retail profits are cut

© manufacturing workers wages are cut

(d) customer satisfaction is maintained *

19. 04 01 1

A circuit consists of two resistors of 5 and 2 connected in series. If a current of 5A flows in the circuit the power dissipated in the 2 resistor will be:

(a) 10w

(b) 25w

© 50w *

(d) 100w

20. 04 02 3

The current in a coil changes from 5A to 2A in 0.05seconds and induces a voltage of 30v in the coil the inductance of the coil is:

(a) 0.2H

(b) 0.5H *

© 1.5H

(d) 2.0H

21. 04 03 4

The property of a capacitor to store charge when its plates are at different potentials is defined as its:

(a) capacitance *

(b) volume

© charge level

(d) charge value

22. 04 04 5

A coil has an inductance of 0.1 H and is connected across a 50Hz a.c. supply, the value of inductive reactance of the coil will be:

(a) 0.03142

(b) 0.3142

© 3.142

(d) 31.42 *

23. 04 04 5

If a purely inductive load having an inductive reactance of 10 is connected across a 100V 50Hz supply, the power dissipated in the circuit will be:

(a) 1000W

(b) 100W

© 10W

(d) 0W *

24. 04 04 5

Inductive loads connected to a. c. supplies cause:

(a) increased power dissipation

(b) lagging power factors *

© leading power factors

(d) reduced power dissipation

25. 04 05 6

The peak*to peak voltage of a sinusoidal waveform is:

(a) 1/2 x peak value

(b) the peak value

© 2 x peak value *

(d) 4 x peak value

26. 04 06 7

An electronic device used to detect changes in levels of light is:

(a) a photo diode *

(b) an opto-coupler

© a fibre optic link

(d) a capacitor

27. 05 01 1

In a four wire star connected balanced three phase system the current in each phase is 40A, the current in the neutral conductor is:

(a) 120A

(b) 40A

© 20A

(d) 0A *

28. 05 02 2

The most common type of cable used for the underground distribution of electricity is:

(a) M I M S cable

(b) P I L C S W A cable *

© L S F cable

(d) F P 200 cable

29. 05 03 3

The voltage supplied to the primary winding of an ideal step down transformer is 1000V and the output voltage is 200V. If the primary current is 5A the value of the secondary current will be:

(a) 5A

(b) 10A

© 25A *

(d) 100A

30. 05 04 4

Isolators are designed to disconnect the supply under:

(a) short circuit conditions

(b) no load conditions *

© full load conditions

(d) overload conditions

31. 05 05 5

The most common earthing system used in the U.K. is the:

(a) TN-CS system

(b) TN-C system

© TT system

(d) TN -S system *

32. 05 05 5

In a TT earthing system the connection to earth is achieved by connecting to:

(a) a metal rod driven into the ground *

(b) the sheath of the supply cable

© the neutral conductor of the system

(d) the gas and water supplies

33. 05 06 6

A residual current device will operate if:

(a) a phase to neutral fault occurs

(b) a phase to earth fault occurs *

© a short circuit occurs between phase and neutral

(d) an open circuit fault occurs

34. 05 06 6

The primary function of a fuse is to protect:

(a) circuit conductors from damage *

(b) against electric shock

© appliances connected to the circuit

(d) against motor starting currents

35. 06 01 1

The synchronous speed of the rotating magnetic field in a four pole 50HZ synchronous motor is:

(a) 12.5 r/s

(b) 16.6 r/s

© 25 r/s

(d) 50 r/s.

36. 06 02 2

Electrical connections are made to the rotor of a three phase wound rotor induction motor via:

(a) the rotor bars

(b) the commutator and brushes

© the slip rings and brushes *

(d) a direct connection

37. 06 02 2

A three phase cage rotor induction motor connected to a constant load will operate at:

(a) above synchronous speed

(b) at synchronous speed

© at varying speeds

(d) at constant speed *

38. 06 03 3

The direction of rotation of a single phase capacitor start induction motor can be reversed by:

(a) reversing the connections to the start winding *

(b) reversing the supply connections

© removing and reversing the rotor

(d) reversing the capacitor connections

39. 06 03 3

Capacitor start capacitor run induction motors are:

(a) three phase machines

(b) single phase machines *

© synchronous machines

(d) wound rotor machines

40. 06 04 4

Small three phase cage rotor induction motors are usually started using:

(a) star delta starters

(b) direct on line starters *

© rotor resistance starters

(d) auto transformer starters

 
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