LET: TLE Part 24

This is the Multiples Choice Questions Part 24 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 24

1. what types of switch is used to control alternately three-phase line system using two sources of power?

a. double pole single throw switch

b. single pole double throw switch

c. triple pole single throw switched

d. triple pole double throw switch

Answer: d

2. Which of the following is the best conductor of electricity?

a. copper

b. aluminum

c. silver

d. gold

Answer: c

3. What type of switch when you want to control one lamp or group of lamps in two different locations?

a. two, 3-way switch

b. one, 4-way switch

c. two single switch

d. duplex switch

Answer: a

4. Cells are connected in parallel to increase the ______ capacity of the cells.

a. current

b. voltage

c. resistance

d. inductance

Answer: a

5. The resistors are to be connected in four possible types of circuit connections namely series, parallel, series parallel and parallel-series. Which type of connection will give the least amount of equivalent resistance?

a. series

b. parallel

c. series-parallel

d. parallel

Answer: b

6. Which is an exposed wiring method that uses cleats, knobs, tubes and flexible tubing for the protection and support or on building and not concealed by the building structure?

a. Open wiring on insulators

b. Armored cable wiring

c. Concealed knob and tube wiring

d. Metal clad cable wiring

Answer: a

7. What will happen if two 100-w, 230v incandescent lamps are connected in series across a 230 v sources?

a. both lamps

b. both lamps will get burnt

c. each lamp will give lesser output lights

d. each lamp will give more output lights

Answer: c

8. What is the mean why electrical appliances are connected in parallel rather the series?

a. Parallel connection consumes lesser power

b. Parallel connection is simpler

c. each appliance consumes more power if connected in series

d. it makes the operation of each appliance independent of each other

Answer: d

9. When replacing a busted fuse which of the following is important?

a. same size and type

b. same type but different rating

c. same size but different rating

d. different size and type

Answer: a

10. Which of the following is a source of alternating current?

a. dynamo

b. battery

c. dry cell

d. alternator

Answer: d

11. When there is a break in the circuit and the current could not pass through the circuit is _______.

a. close

b. shorted

c. grounded

d. alternator

Answer: d

12. Which term usually refers to a device that produces an electric current when light falls upon them?

a. solar cell

b. dry cell

c. solar lamp

d. solar light

Answer: a

13. Which is a synchronous alternating current machine that changes mechanical power into electrical power?

a. dynamo

b. motor

c. alternator

c. lathe machine

Answer: c

14. Which battery CANNOT be recharge after its chemical energy has been depleted?

a. energizer

b. eveready

c. primary battery

d. secondary battery

Answer: c

15. Which generates direct current?

a. alternator

b. dynamo

c. battery

d. adaptor

Answer: b

16. Which battery can be recharged after each chemical energy has been depleted.

a. primary battery

b. energizer

c. eveready

d. secondary battery

Answer: d

17. What is used to change mechanical energy into electrical energy?

a. battery

b. circuit

c. dry cells

d. generator

Answer: d

18. A process in splitting the atom of uranium is called ______.

a, fusion

b. fission

c. friction

d. tension

Answer: a

19. A process in joining hydrogen atoms which causes heat hotter than the sun is called _______.

a. fusion

b. fission

c. friction

d. tension

Answer: a

20. Which transform heat energy to electric energy energy?

a. transformer

b. battery

c. generator

d. thermocouple

Answer: d

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