Pre-board TS 2

Which Of the minimum electrical requirements does a

dwelling the code?

I. Two small appliances circuit

II. One laundry circuit

III. 3 volt—amps per square foot

IV. one 8kv range connection

• I, II & III

• I & II

• III only

• II & III

circuit contains two unequal resistances in

parallel when _________.

• smaller resistance has smaller conductance

• potential difference across each is same

• large current flows in larger resistor

• current is same in both

If test lamp lights when placed in series with

condenser and suitable source of DC, it is a good

indication that the condenser is ________.

• Open-circuited

• Short-circuited

• Fully charged

• Full discharged

Input to an alternator is _______.

• D.C.

• None of these

• A.C.

• Both A.C & D.C

When drilling into steel I—beam, the most likely

cause for breaking a drill bit would be _______.

• the drill bit is too dull

• too much cutting oil on the bit

• too much pressure on the bit

• too slow a drill bit

In a cable capacitor, voltage gradient is maximum

at the surface of the

• earth

• sheath

• insulator

• conductor

Continuous duty is ___________.

• operation at a substantially constant load for an

  indefinite long time

• Intermittent operation which the load conditions are

  recurrent

• a load where the maximum current is expected to continue

  for one hour more

• a load where the maximum current is expected to continue

  for three hours or more

Four resistance each having 20-ohm are connected in

parallel, and the total resistance is _______.

• None of these

• 80-ohm

• 5-ohm

• 4-ohm

When using compressed air to clean electrical

equipment, the air pressure should not exceed 50

pounds. The main reason is higher pressure _________.

• introduce a personal hazard to the user

• may loosen insulating tape

• may rupture the hose

• may blow dust to surrounding equipment

When resistors are connected in series, the total

resistance is _______.

• less than the value of the smallest resistance

• the equivalent of the largest resistance value

• the equivalent of the smallest resistance value

• the sum of the individual resistance values