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

101)   

 In a geyser, the heating element is typically placed:

A.
B.
C.
D.
Answer: B
102)   

 What happens when the thermostat in a geyser fails to cut off at the set temperature? 

A.
B.
C.
D.
Answer: C
103)   

 The most common power rating of a domestic electric iron is:

A.
B.
C.
D.
Answer: C
104)   

 In an electric stove, the heat control knob adjusts:

A.
B.
C.
D.
Answer: B
105)   

 In a layout diagram of a 3-phase alternator, the load is connected at: 

A.
B.
C.
D.
Answer: C
106)   

In an auto-transformer starter, the transformer is used to:

A.
B.
C.
D.
Answer: C
107)   

 Earthing pits must be regularly checked to ensure: 

A.
B.
C.
D.
Answer: C
108)   

Which component is commonly grounded in an electrical layout?

A.
B.
C.
D.
Answer: C
109)   

The MCB in a domestic circuit trips when:

A.
B.
C.
D.
Answer: C
110)   

 A schematic diagram provides: 

A.
B.
C.
D.
Answer: B
111)   

 In a block diagram of an online UPS, the AC load receives power from:

A.
B.
C.
D.
Answer: B
112)   

 In a DSO block diagram, the trigger system is used to: 

A.
B.
C.
D.
Answer: B
113)   

 Which component has both inductive and capacitive behavior at high frequency? 

A.
B.
C.
D.
Answer: D
114)   

Which of the following capacitors is preferred in high-frequency switching? 

A.
B.
C.
D.
Answer: B
115)   

 The SMPS in a mobile phone charger converts:

A.
B.
C.
D.
Answer: B
116)   

 In a SPV system, the MPPT (Maximum Power Point Tracker) adjusts:

A.
B.
C.
D.
Answer: C
117)   

 A buck-boost converter can provide:

A.
B.
C.
D.
Answer: C
118)   

 The IC used in AM transmitters typically acts as:

A.
B.
C.
D.
Answer: B
119)   

 In an FM receiver system, the demodulator block: 

A.
B.
C.
D.
Answer: B
120)   

 The DSO (Digital Storage Oscilloscope) stores data in:

A.
B.
C.
D.
Answer: C
121)   

 In an automatic electric iron, temperature control is done using a: 

A.
B.
C.
D.
Answer: C
122)   

 Which of the following components is used to generate a loud sound in a fire alarm? 

A.
B.
C.
D.
Answer: D
123)   

The core of an electric heater is made of:

A.
B.
C.
D.
Answer: C
124)   

 The working principle of an electric bell is based on:

A.
B.
C.
D.
Answer: B
125)   

 The main role of a 3-phase squirrel cage motor layout diagram is to show: 

A.
B.
C.
D.
Answer: B