1. Following statement is true about tachometer.
(A) Shows engine rpm
(B) Display car speed
(C) Show CO contents
(D) Shows compression pressure
2. Following instrument is useful in adjusting C-B points.
(A) Tachometer
(B) Dwell meter
(C) Dynamo meter
(D) Exhaust gas analyzer
3. Normally, compression pressure in a petrol engine (Kg/cm²) is:
(A) 6
(B) 25
(C) 11
(D) 36
4. During compression test, technician does the following:
(A) Disable ignition system
(B) All are correct
(C) Open the throttle valve with a wire
(D) Disable electric fuel pump
5. Compression reading between two adjacent cylinders is below normal. Possible reason is:
(A) Valve sticking open
(B) Carbon in combustion chamber
(C) Ruptured head gasket
(D) Worn piston rings
6. Cylinder leakage test does not tell about:
(A) Valve seat leakage
(B) Worn piston rings
(C) Worn engine bearings
(D) Leaking head gasket
7. Normal vacuum gauge reading is (inch of Hg):
(A) 37 to 42
(B) 27 to 32
(C) 17 to 22
(D) 47 to 52
8. Vacuum gauge shows too little reading. Possible reason may be:
(A) Restricted exhaust
(B) Broken valve spring
(C) Cracked intake manifold
(D) Rich mixture
9. Following is important consideration while using ignition timing light:
(A) Never connect leads in reverse
(B) Avoid wires to be caught in fan
(C) Identify timing marks
(D) All are correct
10. During checking ignition timing, technician disconnects vacuum pipe from distributor. Following is true:
(A) Timing will advance
(B) Timing will retard
(C) Timing will change rapidly
(D) None of these