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MCQ - Mechanical TNPSC JTO
JTO - 551 - Engineering Drawing and Draughtsman - 551 - unit - 08 - Electrical Electronics and Network Components

151)   

  In the block diagram of an online UPS, the inverter operates:

A.
B.
C.
D.
Answer: B
152)   

 A DSO block diagram includes:

A.
B.
C.
D.
Answer: C
153)   

 The tolerance of a precision resistor is generally within:

A.
B.
C.
D.
Answer: C
154)   

 Which component stores electric charge?

A.
B.
C.
D.
Answer: C
155)   

 Grid-connected solar systems can operate only when:

A.
B.
C.
D.
Answer: B
156)   

SMPS in cell phone chargers provide:

A.
B.
C.
D.
Answer: C
157)   

 Buck converter is used to

A.
B.
C.
D.
Answer: B
158)   

 The IC-based AM transmitter circuit mainly uses:

A.
B.
C.
D.
Answer: B
159)   

 The microcontroller 8051 has how many I/O ports?

A.
B.
C.
D.
Answer: D
160)   

 In a television broadcasting block diagram, the signal is modulated using:

A.
B.
C.
D.
Answer: B
161)   

 Which of the following devices uses induction heating?

A.
B.
C.
D.
Answer: B
162)   

 The element used in electric heaters is usually made of:

A.
B.
C.
D.
Answer: A
163)   

 An MCB in a house wiring system is used to protect against:

A.
B.
C.
D.
Answer: B
164)   

 Which appliance typically has a thermostat as a control device?

A.
B.
C.
D.
Answer: C
165)   

 A ceiling fan connection layout shows:

A.
B.
C.
D.
Answer: B
166)   

 In a wiring layout, the symbol for a socket outlet is typically represented by: 

A.
B.
C.
D.
Answer: A
167)   

 Which of the following indicates earth connection in wiring diagrams?

A.
B.
C.
D.
Answer: B
168)   

 Distribution board layout in home wiring shows:

A.
B.
C.
D.
Answer: B
169)   

 The diagram showing connection of switches, fuses, and loads is called a: 

A.
B.
C.
D.
Answer: D
170)   

 In a DC generator circuit, the voltage is regulated using:

A.
B.
C.
D.
Answer: B
171)   

 In a function generator block diagram, frequency is controlled by:

A.
B.
C.
D.
Answer: B
172)   

 In a UPS block diagram, the battery backup is stored in:

A.
B.
C.
D.
Answer: C
173)   

 The function of a zener diode is to:

A.
B.
C.
D.
Answer: C
174)   

 A component that opposes changes in current is a:

A.
B.
C.
D.
Answer: D
175)   

 A layout of LED driver includes:

A.
B.
C.
D.
Answer: A