Latest TLE Reviewer 19

1. A battery is rated 200 Ah. If it used to supply a constant current of 8A, how long can the battery last until I becomes unusable?

A. 20 hours

B. 25 hours

C. 15 hours

D. 2.5 hours

ANS: B

2. The resistance of 500 meters of a certain wire is 125 ohms. What length of the same wire will have a resistance o f 60ohms?

A. 24 meters

B. 255 meters

C. 240 meters

D. 235 metes

ANS: C

3. If three equal resistance are connected in parallel, the equivalent resisitance of the circuit will be ____ the value one resistor.

A. three times

B. half

C. one-third

D. the same

ANS: C

4. Find the cost of using a 100w , 220 V 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

ANS: 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

ANS: 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

ANS: B

7. The minimum sized of wire used in electrical wiring is the no. 14 AWG. Under the SI standard, what is the diameter f this  wire?

A. 1.2 mm

B. 1.6mm

C. 1.5mm

D. 2.0mm

ANS: B

48. 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

ANS: D

9. Armored cable is commercially known as ________ .

A. Bx cable

B. flat cable

C. metallic cable

D. duplex

ANS: A

10. Which type of cable is fabricated assembly of insulated conductors enclosed in a flexible metal shealth?

A. Underground cable

B. Armored cable

C. Flat cable

D. Flexible cable

ANS: B

11. Flat cable assembly shaller 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

ANS: B

12. An assembly of two pieces of material provided with grooves for holding one or more conducts at a definite 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

ANS: 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 ceilings of buildings?

A. knob and tube wiring

B. Open wiring on insulators

C. Concealed knob and tubes

D. Open wiring with knob and tubes

ANS: C

14. Which terms refers so that switch or outlet body that is embedded or hidden in the wall?

A. Surface type

B. Flush type

C. Concealed type

D.Open type

ANS: 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

ANS: 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

ANS: 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

ANS: 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

ANS: 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

ANS: C

20. What is the smaller size of wire permitted by the code to be used in wiring installation?

A. 2.0mm

B. 3.5mm

C. 2.0mm

D. 1.25mm

ANS: A

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