81⟩ When an ammeter is connected in a circuit it is essential that it
* a) Has a very low resistance
* b) Has a very high resistance
* c) Is connected across the supply
* d) Is connected across the load
Answer – a
Electrical Engineering
Home Engineering Electrical Engineering
“Electrical engineering interview questions and answers, referred to as electrical and electronic engineering, Electrical Engineering interview questions and answers guide deals with the study and application of electricity, electronics and electromagnetism. The field interview questions and answers first became an identifiable occupation in the late nineteenth century after commercialization of electric telegraph and electrical power supply. Learn Electrical Engineering by interview questions”
105 Electrical Engineering Questions And Answers
82⟩ To facilitate safe isolation, voltage indicating devices
* a) Must comply with BS 7671
* b) Are used to prove the circuit was dead only
* c) Are used to prove the circuit was alive only
* d) Are “proved” prior to and “re-proved” after isolation
Answer – d
83⟩ Which of the following lamps would not normally form part of a highway electrical system?
* a) Low pressure mercury (T8-T12)
* b) Low pressure mercury (MBF)
* c) Metal halide (MBI)
* d) Incandescent Lamp (100W)
Answer – d
84⟩ Instruments should be regularly calibrated to
* a) Support local industry
* b) Ensure accuracy when testing
* c) Ensure operative is up to date
* d) Provide a training exercise for operatives
Answer – b
85⟩ The purpose of a method statement is to
* a) Ensure compliance with BS 7671
* b) Identify a safe working practice
* c) Provide a training document for staff
* d) Provide instructions to be followed at all times
Answer – b
86⟩ Which of the following is a statutory piece of legislation?
* a) BS 7671
* b) IEE Guidance Notes
* c) Electricity at Work Regulations
* d) IEE On-Site Guide
Answer – c
87⟩ Relevant information for re commissioning street furniture can be found in
* a) IEE Guidance Notes 7
* b) Works instructions
* c) The Electricity Supply Regulations
* d) The Petroleum (Consolidation) Act 1928
Answer – b
88⟩ Which legislation states the need to avoid live working unless unreasonable in all circumstances?
* a) BS 7671
* b) Guidance Notes 3
* c) On-Site Guide
* d) The Electricity at Work Regulations
Answer – d
89⟩ Voltage indication devices need to be proved to ensure
* a) That the lamp has not gone
* b) That the highway furniture has been installed correctly
* c) Safe working conditions
* d) The correct operation of street furniture
Answer – c
90⟩ Which of the following are appropriate tests for a completed panel?
* a) Flash testing of components
* b) Insulation resistance and polarity
* c) Inspection of conductors for current carrying capacity
* d) Identification of conductors
Answer – b
91⟩ An isolator built into a panel is used for
* a) Normal load switching
* b) Fault load switching
* c) Short circuit protection
* d) No load switching
Answer – d
92⟩ What degree of protection is specified for protection against a BS finger?
* a) IP4XB
* b) IP5XB
* c) IP6XB
* d) IPXXB
Answer – d
93⟩ A device with a BS EN number has been
* a) Agreed for use only within the UK
* b) Agreed for operational use within the EU
* c) Standardized for all operational uses only in the UK
* d) Standardized for use in the EU
Answer – d
94⟩ Which of the following is statutory?
* a) BS 7671
* b) On-Site Guide
* c) Electricity at Work Regulations
* d) GS 38
Answer – c
95⟩ Q8 BS 7671 provides appropriate advice on
* a) Heights of panels
* b) Design of panels
* c) Environmental conditions
* d) Instrumentation
Answer – c
96⟩ When the field windings of an electrical machine are not connected to its own armature, it is known as
* a) Self- excited
* b) Polyphase
* c) Separately-excited
* d) Synchronous
Answer – c
97⟩ Particular starting arrangements are used when a motor has a rating greater than
* a) 370 microwatts
* b) 0.37 watts
* c) 37 watts
* d) 370 watts
Answer – d
98⟩ With a star-delta starter, the windings are brought out to a terminal box. The voltage applied to the windings at starting is
* a) VL ÷ v3
* b) VL x v3
* c) VPhase ÷ v3
* d) VPhase x v3
Answer – a
99⟩ In a shunt-wound motor the field coil is connected in
* a) Series with the armature
* b) Series with the motor
* c) parallel with the armature
* d) parallel with the motor
Answer – c
100⟩ If a motor is required to start against a large starting current, it is usual to use
* a) Direct on line starter
* b) Face plate starter
* c) Step down centre tapped starter
* d) Rotor resistance starter
Answer – d
