Online NAT IE Pre Engineering Physics Test Preparation for Pakistani Students

NAT I Engineering Physics

Sr. #	Questions	Answers Choice
1	Which of the modulus of elasticity is involved in compressing a rod to decrease its length?	Young's modulus Bulk modulus Modulus of rigidity None of the above
2	The dimensional formula for the modulus of elasticity is same as that for.	Stress Strain Velocity Surface tension
3	The henry is the unit for	Resistance Magnetic flux Magnetic field Inductance
4	Energy is stored in the choke coil in the form of	Heat Magnetic energy Electric energy Electro -magnetic energy
5	In a capacitive circuit	Current leads voltage by phase of π/2 Voltage leads current by phase of π/2 Current and voltage are in same phase Sometime current and sometime voltage leads
6	The peak voltage in a 200 volt A.C supply is nearly	220 253 311
7	An ideal choke (used along with fluorescent tube) would be	A pure resistor A pure capacitor A pure inductor A combination of an inductor and a capacitor
8	A capacitor acts as an infinite resistance for	AC DC Both AC and DC
9	A 220 V, 50 Hz, AC source is connected to an inductance of 0.2.H and a resistance of 20 ohm in series What is the current in the circuit?	10 A 5 A 33.3  A 3.33 A
10	In an AC circuit a resistance of R ohm i connected in series with an inductance L if phase angle between voltage and current be 45^o the value of inductive reactance will be	R/4 R/2 R