Question: What are Ferrites?
1. Magnetic but have low resistance
2. Magnetic but have high resistance
3. Non-magnetic with low resistance
4. Non-magnetic with high resistance
Answer: 2
Question: An electronics circuits in which different components such as Diode, Resistor and Capacitor etc. are connected separately is called –
1. Chassis
2. Printed board
3. Integrated circuit
4. Discrete circuit
Answer: 3
Question: Selectivity of the receiver can be increased by which of the following?
1. By using more tuned circuit
2. By decreasing number of tuned circuit
3. By using loudspeaker
4. By increasing gain of the receiver
Answer: 4
Question: In case of ball bearings, which part is made harder than others –
1. Ball
2. Outer race
3. Inner race
4. All are made equally hard
Answer: 4
Question: Which of the following motors is preferred when quick speed reversal is the main consideration?
1. Squirrel cage induction motor
2. Wound rotor induction motor
3. Synchronous motor
4. D. C. motor
Answer: 4
Question: Motor-generator set for D. C. arc welding has generator of –
1. Series type
2. Shunt type
3. Differentially compound type
4. Level compound type
Answer: 3
Question: …signal will become zero when the feedback signal and reference signs are equal.
1. Input
2. Actuating
3. Feedback
4. Reference
Answer: 2
Question: The capacitance, in force-current analogy, is analogous to –
1. Momentum
2. Velocity
3. Displacement
4. Mass
Answer: 4
Question: Co-efficient of velocity as compared to the coefficient of discharge is –
1. Less
2. More
3. Equal
4. Less or more depending on flow
Answer: 2
Question: A. C. servomotor is basically a/an …
1. Universal motor
2. Single phase induction motor
3. Two phase induction motor
4. Three phase induction motor
Answer: 3
Question: For generating large currents on D.C. generators which winding is generally preferred?
1. Progressive wave winding
2. Lap winding
3. Retrogressive wave winding
4. Current depends on design
Answer: 2
Question: Calorie value is the least of the following materials –
1. Coal gas
2. Producer gas
3. Steam fiery gas
4. Oil gas
Answer: 2
Question: Which of the following is not a property of difference amplifier?
1. Capacitor is used in it
2. It is used to compare two signals
3. Difference amplifier yields more than the direct couple ampliier
4. Frequency of difference amplifier remains flat from zero to high frequency
Answer: 1
Question: Germanium possesses –
1. Two valence electrons
2. Three valence electrons
3. Four valence electrons
4. Five valence electrons
Answer: 3