I do not put my emergency fund in asb though.

If its emergency case, i need the cash that second no matter the hour.

That is a good call. Bank deposit with access to ATM or even just cash is more liquid than ASB. But consider staggered emergency funds, with some, like 2 months salary in savings, 4 months in ASB

Credit card can and should function as part of your emergency funds too, keep the balance low, and the limit high. You can even have an emergency card that you keep in the car or house, only for emergencies.
Depends, are you a Muslim? No kidding, Chinese Muslims can apply for both the units as well as financing.

To cancel the loan account will  take days, if not weeks to months. It depends on the banker. So this is not liquid at all

But the cash-investments (including the distribution earned) in the ASB is liquid, you can walk into to any ASB-agent banks (MBB, RHB, CIMB, HLBB, etc) before 4pm every working day and the cash can be immediately deposited into the savings account you have with them.

You can do this in the Pos Office too, although the limit is RM5000, if they have the cash in hand that is

Or you can go to ASNB branches