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MCQ - TNPSC JTO

JTO - 551 - Engineering Drawing and Draughtsman

551 - unit - 08 - Electrical Electronics and Network Components

81)   

 In an automatic electric iron, which material is typically used in the bimetallic strip?

A.
B.
C.
D.
82)   

Which of the following appliances uses resistive heating elements?

A.
B.
C.
D.
83)   

 The electric buzzer produces sound using:

A.
B.
C.
D.
84)   

  Which device detects over-temperature in a geyser?

A.
B.
C.
D.
85)   

 In a control panel for DC generator, which component is used for speed control? 

A.
B.
C.
D.
86)   

 A compound motor layout includes both:

A.
B.
C.
D.
87)   

  Earthing ensures that:

A.
B.
C.
D.
88)   

 What is used in pipe earthing to reduce soil resistance?

A.
B.
C.
D.
89)   

 A 3-point starter protects the motor from:

A.
B.
C.
D.
90)   

  In a squirrel cage motor circuit diagram, which part is not accessible?

A.
B.
C.
D.
91)   

 In the block diagram of a UPS, which unit charges the battery?

A.
B.
C.
D.
92)   

 A DSO captures fast signals because it uses:

A.
B.
C.
D.
93)   

 Which system uses both solar and grid supply simultaneously?

A.
B.
C.
D.
94)   

Which of the following capacitors is polarized?

A.
B.
C.
D.
95)   

 A resistor with color bands of brown-black-red indicates:

A.
B.
C.
D.
96)   

 SMPS circuits are preferred over linear power supplies because they:

A.
B.
C.
D.