Find the average gate power dissipation (Pgav) when the maximum allowable gate power dissipation (Pgm) = 10 kW, with a duty cycle = 50 %.

A partner cannot contract himself out of which of the following duties?
(1) Duty of utmost good faith, i.e. uberrimae fidei.
(2) Duty of carry on business to greatest common advantage.
(3) Duty to render true accounts and full information.
(4) Duty to indemnify for fraud.
(5) Duty to indemnify for willful neglect.
(6) Duty to properly use the firm's property.

A

(1), (2), (3) and (6)

B

(1), (2), (4) and (5)

C

(1), (2), (3) and (5)

D

(1), (2), (4) and (6)

Find the triggering frequency when the average gate power dissipation = 0.3 W and the peak gate drive power is 5 Watts. The gate source has a pulse width of 20 μsec duration.

A

3 kHz

B

0.3 kHz

C

30 kHz

D

0.03 mHz

Questions below followed by three quantities. Find the relationship between them. Quantity I: In a class with a certain number of students if a teacher weighing 78 kg is added, then average weight of class is increased by 2 kg. If one more teacher weighing 66 kg is added, then the average weight of the class increases by 3.5 kg over the original average. What is the original average weight (in kg) of the class? Quantity II: The average age of 16 students and their teacher's age is 16 years. If the teacher's age is excluded, the average reduces by 2. What is the teacher's age? Quantity III: Average weight of three friends A, B and C is 46 kg. Another person D joins the group and now the average is 45 kg. If another person E whose weight is 6 kg more than D, joins the group replacing A, then average weight of B, C, D and E becomes 47 kg. What is the weight of A (in kg)?

A

Quantity I > Quantity II < Quantity III

B

Quantity I > Quantity II > Quantity III

C

Quantity I < Quantity II > Quantity III

D

Quantity I < Quantity II < Quantity III

E

Quantity I = Quantity II = Quantity III

The gate-source voltage is Es = 16 V and the load line has a slope of 128 V/A. Calculate the gate current for an average gate power dissipation of 0.5 W.

A

62.5 mA

B

100.25 mA

C

56.4 mA

D

80.65 mA

average gate power dissipation for an SCR is 0.5 Watts the voltage applied to the gate is Vg = 10 V. What is the maximum value of current Ig for safe operation?

A

0.25 A

B

10 A

C

0.05 A

D

0.1 A

The sum of the IQ score of Quant team having 4 SMEs and Average IQ score of Gate team having 3 SMEs were 600 and 170 respectively. Recently, one SME of the Quant team switched to the Gate team and two new SME join the Quant team due to which the average IQ score of Quant team increased by 40% and average IQ score of both the teams becomes equal. Find the IQ score of the SME who switched to the Gate team.

A

230

B

330

C

130

D

290

E

Can't be determined

Group I shows different heat addition processes in power cycles. Likewise, Group II shows different heat removal processes. Group III lists power cycles. Match items from Groups I, II and III. Group I Group II Group III P. Pressure constant S. Pressure constant 1. Rankine cycle Q. Volume constant T. Volume constant 2. Otto cycle R. Temperature constant U. Temperature constant 3. Carnot cycle 4. Diesel cycle 5. Brayton cycle

A

P – S – 5, R – U – 3, P – S – 1, Q – T - 2

B

P – S – 1, R – U – 3, P – S – 4, P – T - 2

C

R – T – 3, P – S – 1, P – T – 4, Q – S - 5

D

P – T – 4, R – S – 3, P – S – 1, P – S - 5

A passenger paid 50% customs duty on accompanied baggage items. He paid another 20% sales tax on the total value of the items plus the custom duty paid. The total custom duty and sales tax is Tk. 350. what is the value of the item custom duty and sales tax?

A

Tk.400

B

Tk. 450

C

Tk. 500

D

None these

Which of the following is the duty of a partner?
1. Duty of absolute good faith
2. Duty to render the true account
3. Duty not to compete
4. Proper use of property

A

1, 2 and 4

B

2, 3 and 4

C

1 and 3

D

All of the above

Which of the following are the duties of a bailee?
1. Duty to take reasonable care of goods
2. Duty not to make unauthorised use of goods
3. Duty not to mix his own goods with the goods bailed
4. Duty to compensate when goods is damaged despite of the care of the bailee

A

2, 3 and 4

B

1, 2 and 3

C

3 and 4

D

1 and 2

Find the average gate power dissipation (Pgav) when the maximum allowable gate power dissipation (Pgm) = 10 kW, with a duty cycle = 50 %.

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