Quiz Questions

Question 1 1 Marks

Which instrument is used to identify the
terminals of a compressor motor?

A

Ammeter

B

Voltmeter

C

Ohm meter

D

Anemometer

Question 2 1 Marks

How to change the direction of rotation in
3 Phase induction motor?

A

Change neutral

B

Change all phase

C

Change any two phase

D

Change the winding only

Question 3 1 Marks

What is the use of a starting capacitor in single phase induction motor?

A

Improve power factor

B

Increase starting torque

C

Decrease starting torque

D

Dis connect starting winding

Question 4 1 Marks

How the difference between the
synchronous speed and the actual rotor speed is
specified?

A

Lead

B

Lag

C

Slip

D

Trip

Question 5 1 Marks

Which winding is made of thin wire in single phase motor?

A

Main

B

Series

C

Starting

D

Running

Question 6 1 Marks

What is the use of capacitor in PSC
operated induction motor?

A

Decrease the starting torque

B

Cancel the starting torque

C

Improve the power factor

D

Decrease the power factor

Question 7 1 Marks

Which gas is used for pressure testing the compressor dome?

A

Air

B

Oxygen

C

Nitrogen

D

Refrigerant

Question 8 1 Marks

Which motor has the least starting
torque?

A

CSIR

B

CSR

C

RSIR

D

PSC

Question 9 1 Marks

Which part connects the piston with small end of connecting rod in a reciprocating compressor?

A

Piston pin

B

Piston bolt

C

Piston rings

D

Piston sleeve

Question 10 1 Marks

Which is used to connect the rotor bars in 3phase squirrel cage induction motor?

A

Screw

B

Welded

C

End ring

D

Nut and bolt

Question 11 1 Marks

What is the advantage of a hermetically sealed compressor in refrigerator?

A

Silent operation

B

Easily serviceable

C

Noise is more

D

Cost is high

Question 12 1 Marks

What is the formula to find out the
synchronous speed of induction motor?

A

Ns=(150P/f)

B

Ns=(120f/P)

C

Ns=(150f/P)

D

Ns=(120P/f)

Question 13 1 Marks

Which motor has the least starting
torque?

A

CSIR

B

CSR

C

RSIR

D

PSC

Question 14 1 Marks

What is the reason for poor compression?

A

Less clearance volume

B

Scratches on the piston surface

C

Lapped valve plate and reed seat

D

Good lubrication on the moving parts

Question 15 1 Marks

Which valve is closed during compression stroke in reciprocating compressor?

A

Service valve

B

Liquid line valve

C

Discharge valve

D

Suction valve

Question 16 1 Marks

What is the centre of gravity of a rectangular body?

A

Longer side of rectangle

B

Shorter side of rectangle

C

At the point of intersection of its diagonals

D

At the corners

Question 17 1 Marks

Which affects the centre of gravity of the object

A

Weight

B

Mass

C

Density

D

Shape

Question 18 1 Marks

What is the name of the point at which all the weight of the body concentrated?

A

Initial point

B

Centre of gravity

C

Centroid

D

Central point

Question 19 1 Marks

Which state of equilibrium's example is A cone resting on its tip?

A

Stable

B

Neutral

C

Unstable

D

Horizontal

Question 20 1 Marks

Which one of the following geometrical shape's centre of gravity lies from its base is 1/3 of its height?

A

Square

B

Rhombus

C

Triangle

D

Cone

Question 21 1 Marks

Which is the NOT gate in the following picture? | ಕೆಳಗಿನ ಚಿತ್ರದಲ್ಲಿ NOT ಗೇಟ್ ಯಾವುದು?

A

B

C

D

Question 22 1 Marks

Which is ball peen hammer? | ಬಾಲ್ ಪೀನ್ ಸುತ್ತಿಗೆ ಯಾವುದು?

A

B

C

D

Question 23 1 Marks

Which is the symbol of earth? | ಭೂಮಿಯ ಸಂಕೇತ ಯಾವುದು?

A

B

C

D

Question 24 1 Marks

What is the name of the symbol? | ಚಿಹ್ನೆಯ ಹೆಸರೇನು?

A

Microphone | ಮೈಕ್ರೊಫೋನ್

B

Dynamic microphone | ಡೈನಾಮಿಕ್ ಮೈಕ್ರೊಫೋನ್

C

Condenser microphone | ಕಂಡೆನ್ಸರ್ ಮೈಕ್ರೊಫೋನ್

D

Loud speaker | ಲೌಡ್ ಸ್ಪೀಕರ್

Question 25 1 Marks

Identify the given symbol | ನೀಡಿರುವ ಚಿಹ್ನೆಯನ್ನು ಗುರುತಿಸಿ

A

AC

B

DC

C

Ohms | ಓಮ್ಸ್

D

Inductance | ಇಂಡಕ್ಟನ್ಸ್

Which instrument is used to identify the terminals of a compressor motor?

How to change the direction of rotation in 3 Phase induction motor?

What is the use of a starting capacitor in single phase induction motor?

How the difference between the synchronous speed and the actual rotor speed is specified?

Which winding is made of thin wire in single phase motor?

What is the use of capacitor in PSC operated induction motor?

Which gas is used for pressure testing the compressor dome?

Which motor has the least starting torque?

Which part connects the piston with small end of connecting rod in a reciprocating compressor?

Which is used to connect the rotor bars in 3phase squirrel cage induction motor?

What is the advantage of a hermetically sealed compressor in refrigerator?

What is the formula to find out the synchronous speed of induction motor?

Which motor has the least starting torque?

What is the reason for poor compression?

Which valve is closed during compression stroke in reciprocating compressor?

What is the centre of gravity of a rectangular body?

Which affects the centre of gravity of the object

What is the name of the point at which all the weight of the body concentrated?

Which state of equilibrium's example is A cone resting on its tip?

Which one of the following geometrical shape's centre of gravity lies from its base is 1/3 of its height?

Which is the NOT gate in the following picture? | ಕೆಳಗಿನ ಚಿತ್ರದಲ್ಲಿ NOT ಗೇಟ್ ಯಾವುದು?

Which is ball peen hammer? | ಬಾಲ್ ಪೀನ್ ಸುತ್ತಿಗೆ ಯಾವುದು?

Which is the symbol of earth? | ಭೂಮಿಯ ಸಂಕೇತ ಯಾವುದು?

What is the name of the symbol? | ಚಿಹ್ನೆಯ ಹೆಸರೇನು?

Identify the given symbol | ನೀಡಿರುವ ಚಿಹ್ನೆಯನ್ನು ಗುರುತಿಸಿ

Which instrument is used to identify the
terminals of a compressor motor?

How to change the direction of rotation in
3 Phase induction motor?

How the difference between the
synchronous speed and the actual rotor speed is
specified?

What is the use of capacitor in PSC
operated induction motor?

Which motor has the least starting
torque?

What is the formula to find out the
synchronous speed of induction motor?

Which motor has the least starting
torque?