The hammer-on-dolly method is used to raise low spots and lower high spots simultaneously.
Answer the following statement true (T) or false (F)
False
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What is an ion and how is it useful?
What will be an ideal response?
In 1941, which of the following provided Britain with much needed armaments to defend itself against German bombing?
a. Operation Barbarossa b. the Atlantic Charter c. the Bretton-Woods Agreement d. the Lend-Lease Agreement
A half-adder is a logic circuit that adds ________
Fill in the blank(s) with correct word
Answer the following statement(s) true (T) or false (F)
1. The triac is a device very similar in operation to the SCR. 2. When an SCR is connected into an AC circuit, the output voltage is rectified to direct current. 3. If a variable resistor is used to control the gate of the triac, the same control problems exist as did with the SCR. 4. The triac cannot be tested with an ohmmeter. 5. If a triac is used as the controlling element for a motor, the thermostat cannot furnish the amount of gate current necessary to control the triac.