This is the Multiples Choice Questions Part 6 of TLE. In preparation for the LET Exam, practice, and familiarize every question we have, it might be included in the actual examination. Good luck.
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TLE Part 6
1. A battery is rated 200 Ah. If it is used to supply a constant current of 8A, how long can the battery last until I become unusable?
a. 20 hours
b. 25 hours
c. 15 hours
d. 2.5 hours
Answer: b
2. The resistance of 500 meters of a certain wire is 125 ohms. What length of the same wire will have a resistance of 60 ohms?
a. 24 meters
b. 255 meters
c. 240 meters
d. 235 meters
Answer: c
3. If three equal resistance are connected in parallel, the equivalent resistance of the circuit will be ______ the value one resistor.
a. three times
b. half
c. one-third
d. the same
Answer: c
4, Find the cost of using a 100w, 220v lamp for 20 hours at Php 3.00 per kW hr.
a. php 6.00
b. php 9.00
c. php 10.00
d. php 60.00
Answer: a
5. Which box with a blank cover is inserted in one more runs in one or more runs of raceway to facilitate pulling of the conductors?
a. Blank box
b. junction box
c. terminal box
d. pull box
Answer: d
6. Which box with a blank cover for joining runs of conduits and providing space for connection and branching of enclosed conductors?
a. Blank box
b. junction box
c. terminal box
d. pull box
Answer: b
7. The minimum sized of wire used in electrical wiring is the no. 14 AWG. Under the SI standard, what is the diameter of this wire?
a. 1.2 mm
b. 1.6 mm
c. 1.5 mm
d. 2.0 mm
Answer: b
8. A thin walled steel raceway of circular form with a corrosion-resistant coating for protection of wires or cables is ______.
a. rigid metal conduit
b. flexible metal pipe
c. metal moulding
d. electrical metallic tubing
Answer: d
9. Armored cable is commercially known as ______.
a. Bx cable
b. flat cable
c. metallic cable
d. duplex
Answer: a
10. Which type of cable is fabricated assembly of insulated conductors enclosed in a flexible metal sheath?
a. Underground cable
b. Armored cable
c. Flat cable
d. Flexible cable
Answer: b
11. Flat cable assembly shall be installed for _____.
I. concealed work only
II. exposed work only
a. I only
b. II only
c. I and II
d. Cannot be determined
Answer: b
12. An assembly of two pieces of material provided with grooves for holding spacing from the surface wired over and from each other, and with holes for fastening in position is called _____.
a. split knob
b. cleat
c. spool insulator
d. strain insulator
Answer: b
13. Which is a wiring method that uses knobs, tubes and flexible non-metalic tubing for the protection and support of single insulated conductors concealed in hollow spaces of walls ceiling of buildings?
a. knob and tube wiring
b. Open wiring on insulators
c. Concealed knob and tubes
d. Open wiring with knob and tubes
Answer: c
14. The use of surface non-raceway is not permitted in all the following EXCEPT one. Which is the exception?
a. Dry locations
b. Where subject to severe physical damage
c. Where voltage is over 300v
d. Where concealed
Answer: c
15. The use of surface non-raceway is not permitted in all the following EXCEPT one. Which is the exception?
a. Dry locations
b. Where subject to severe physical damage
c. Where voltage is over 300v
d. Where concealed
Answer: a
16. When the entire switch or outlet body is visible and extends beyond the wall surface, the device is said to be ______.
a. wall type
b. surface type
c. flush type
d. open type
Answer: b
17. What device automatically breaks the circuit the moment an overload or short circuit occurs?
a. Breaker switch
b. Overload
c. Circuit breaker
d. Main switch
Answer: a
18. Which term is used when two conductors are imbedded in one solid mass of rubber insulation?
a. Two in one
b. Duplex
c. Stranded
d. Duplex
Answer: d
19. What type of sockets is used for outdoor or wet location wiring installation?
a. Water proof socket
b. special purpose
c. weatherproof socket
d. Outdoor socket
Answer: c
20. What is the smaller size of wire permitted by the code to be used in wiring installation?
a. 2.0 mm
b. 2.5 mm
c. 2.0 mm
d. 1.25 mm
Answer: a
