Kindly answer the questions correctly in the box mentioned below

1.   What is checked by vacuum gauge?

A Leak in the inlet manifold

B Leak in the cooling system

C Leak in the air brake system

D Leak in the hydraulic brake system

2.   Which gauge is used to diagnostic leaks in engine intake system?

A Slip gauge

B Feeler gauge

C Vacuum gauge

D Pressure gauge

3.   What is indicate the uneven vacuum gauge reading?

A Dirty air cleaner

B Valves are sticky

C Bend connecting rod

D Main bearing worn out

4.   Which part of the engine connected with vacuum gauge to diagnostic engine fault?

A Crankcase

B Cylinder head

C Intake manifold

D Exhaust manifold