Page 359 - GMAT 2017b_Neatb

Electronics Information Test 1

40. The letters RHW when applied to electrical wire
indicate the wire
(A) has a solid conductor
(B) has rubber insulation
(C) is insulated with paper
(D) has lead sheath
33. The reading of the kilowatt-hour meter shown above is
41. Boxes and fittings intended for outdoor use should be
(A) 7972
(B) 1786 of
(C) 2786 (A) weatherproof type
(D) 6872 (B) stamped steel of not less than No. 16
(C) standard gauge
34. Commutators are found on (D) stamped steel plated with cadmium
(A) mercury rectifiers
(B) DC motors 42. A direct-current supply may be obtained from an
(C) circuit breakers alternating-current source by means of
(D) alternators (A) a frequency changer set
(B) an inductance-capacitance filter
35. Neutral wire can be quickly recognized by the (C) a silicon diode rectifier
(D) None of the above
(A) greenish color
(B) bluish color
(C) natural or whitish color 43. Fuses protecting motor circuits have to be selected to
(D) black color permit a momentary surge of
(A) voltage when the motor starts
36. The term that is NOT applicable in describing the (B) voltage when the motor stops
construction of a microphone is (C) current when the motor starts
(A) dynamic (D) current when the motor stops.
(B) carbon
(C) crystal 44. When working near lead acid storage batteries,
(D) feedback extreme care should be taken to guard against sparks,
essentially to avoid
(A) overheating the electrolyte
(B) an electric shock
(C) a short circuit
(D) an explosion
45. The voltage that will cause a current a 5 amperes to
37. The fitting shown above is used in electrical
construction to flow through a 20-ohm resistance
(A) clamp two adjacent junction boxes together (A) 1 volt
(B) act as a ground clamp for the conduit system 4
(C) attach a flexible metallic conduit to a junction (B) 4 volts
box (C) 20 volts
(D) protect exposed wires where they pass through a (D) 100 volts
wall.
46. Receptacles in a house-lighting system are regularly
connected in
38. A good magnetic material is
(A) parallel
(A) copper
(B) series
(B) iron (C) diagonal
(C) tin (D) perpendicular
(D) brass

39. Rosin is a material generally used
(A) in batteries 47. The electronic symbol shown above usually
(B) for high-voltage insulation represents a(n)
(C) as a dielectric (A) resistor (B) inductor
(D) as a soldering flux (C) capacitor (D) transformer

362